diff --git a/lib/builtins/aarch64/chkstk.S b/lib/builtins/aarch64/chkstk.S
index 89ec90b..01f9036 100644
--- a/lib/builtins/aarch64/chkstk.S
+++ b/lib/builtins/aarch64/chkstk.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/absvdi2.c b/lib/builtins/absvdi2.c
index 682c235..6a1119c 100644
--- a/lib/builtins/absvdi2.c
+++ b/lib/builtins/absvdi2.c
@@ -1,9 +1,8 @@
 /*===-- absvdi2.c - Implement __absvdi2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/absvsi2.c b/lib/builtins/absvsi2.c
index 4812af8..cf03900 100644
--- a/lib/builtins/absvsi2.c
+++ b/lib/builtins/absvsi2.c
@@ -1,9 +1,8 @@
 /* ===-- absvsi2.c - Implement __absvsi2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/absvti2.c b/lib/builtins/absvti2.c
index 7927770..065525f 100644
--- a/lib/builtins/absvti2.c
+++ b/lib/builtins/absvti2.c
@@ -1,9 +1,8 @@
 /* ===-- absvti2.c - Implement __absvdi2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/adddf3.c b/lib/builtins/adddf3.c
index 9a39013..73ad615 100644
--- a/lib/builtins/adddf3.c
+++ b/lib/builtins/adddf3.c
@@ -1,9 +1,8 @@
 //===-- lib/adddf3.c - Double-precision addition ------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/addsf3.c b/lib/builtins/addsf3.c
index c5c1a41..a48d537 100644
--- a/lib/builtins/addsf3.c
+++ b/lib/builtins/addsf3.c
@@ -1,9 +1,8 @@
 //===-- lib/addsf3.c - Single-precision addition ------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/addtf3.c b/lib/builtins/addtf3.c
index e4bbe02..1dc303b 100644
--- a/lib/builtins/addtf3.c
+++ b/lib/builtins/addtf3.c
@@ -1,9 +1,8 @@
 //===-- lib/addtf3.c - Quad-precision addition --------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/addvdi3.c b/lib/builtins/addvdi3.c
index 0da3894..c186ecb 100644
--- a/lib/builtins/addvdi3.c
+++ b/lib/builtins/addvdi3.c
@@ -1,9 +1,8 @@
 /* ===-- addvdi3.c - Implement __addvdi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/addvsi3.c b/lib/builtins/addvsi3.c
index 94ca726..50df64f 100644
--- a/lib/builtins/addvsi3.c
+++ b/lib/builtins/addvsi3.c
@@ -1,9 +1,8 @@
 /* ===-- addvsi3.c - Implement __addvsi3 -----------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/addvti3.c b/lib/builtins/addvti3.c
index c224de6..d0ee07a 100644
--- a/lib/builtins/addvti3.c
+++ b/lib/builtins/addvti3.c
@@ -1,9 +1,8 @@
 /* ===-- addvti3.c - Implement __addvti3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/apple_versioning.c b/lib/builtins/apple_versioning.c
index 3797a1a..edb29cd 100644
--- a/lib/builtins/apple_versioning.c
+++ b/lib/builtins/apple_versioning.c
@@ -1,9 +1,8 @@
 /* ===-- apple_versioning.c - Adds versioning symbols for ld ---------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/arm/adddf3vfp.S b/lib/builtins/arm/adddf3vfp.S
index 8e476ca..bddbe6f 100644
--- a/lib/builtins/arm/adddf3vfp.S
+++ b/lib/builtins/arm/adddf3vfp.S
@@ -1,9 +1,8 @@
 //===-- adddf3vfp.S - Implement adddf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/addsf3.S b/lib/builtins/arm/addsf3.S
index 74723cb..0bbc021 100644
--- a/lib/builtins/arm/addsf3.S
+++ b/lib/builtins/arm/addsf3.S
@@ -1,9 +1,8 @@
 /*===-- addsf3.S - Adds two single precision floating pointer numbers-----===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/addsf3vfp.S b/lib/builtins/arm/addsf3vfp.S
index 8871efd..c9d1fd1 100644
--- a/lib/builtins/arm/addsf3vfp.S
+++ b/lib/builtins/arm/addsf3vfp.S
@@ -1,9 +1,8 @@
 //===-- addsf3vfp.S - Implement addsf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_cdcmp.S b/lib/builtins/arm/aeabi_cdcmp.S
index adc2d55..bd039a0 100644
--- a/lib/builtins/arm/aeabi_cdcmp.S
+++ b/lib/builtins/arm/aeabi_cdcmp.S
@@ -1,9 +1,8 @@
 //===-- aeabi_cdcmp.S - EABI cdcmp* implementation ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_cdcmpeq_check_nan.c b/lib/builtins/arm/aeabi_cdcmpeq_check_nan.c
index 7578433..cff6c20 100644
--- a/lib/builtins/arm/aeabi_cdcmpeq_check_nan.c
+++ b/lib/builtins/arm/aeabi_cdcmpeq_check_nan.c
@@ -1,9 +1,8 @@
 //===-- lib/arm/aeabi_cdcmpeq_helper.c - Helper for cdcmpeq ---------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_cfcmp.S b/lib/builtins/arm/aeabi_cfcmp.S
index 4b1de99..a26cb2a 100644
--- a/lib/builtins/arm/aeabi_cfcmp.S
+++ b/lib/builtins/arm/aeabi_cfcmp.S
@@ -1,9 +1,8 @@
 //===-- aeabi_cfcmp.S - EABI cfcmp* implementation ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_cfcmpeq_check_nan.c b/lib/builtins/arm/aeabi_cfcmpeq_check_nan.c
index 43dde9a..fd944b7 100644
--- a/lib/builtins/arm/aeabi_cfcmpeq_check_nan.c
+++ b/lib/builtins/arm/aeabi_cfcmpeq_check_nan.c
@@ -1,9 +1,8 @@
 //===-- lib/arm/aeabi_cfcmpeq_helper.c - Helper for cdcmpeq ---------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_dcmp.S b/lib/builtins/arm/aeabi_dcmp.S
index 9fa78b4..5f72067 100644
--- a/lib/builtins/arm/aeabi_dcmp.S
+++ b/lib/builtins/arm/aeabi_dcmp.S
@@ -1,9 +1,8 @@
 //===-- aeabi_dcmp.S - EABI dcmp* implementation ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_div0.c b/lib/builtins/arm/aeabi_div0.c
index dc30313..69b3657 100644
--- a/lib/builtins/arm/aeabi_div0.c
+++ b/lib/builtins/arm/aeabi_div0.c
@@ -1,9 +1,8 @@
 /* ===-- aeabi_div0.c - ARM Runtime ABI support routines for compiler-rt ---===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/arm/aeabi_drsub.c b/lib/builtins/arm/aeabi_drsub.c
index 1254886..410c133 100644
--- a/lib/builtins/arm/aeabi_drsub.c
+++ b/lib/builtins/arm/aeabi_drsub.c
@@ -1,9 +1,8 @@
 //===-- lib/arm/aeabi_drsub.c - Double-precision subtraction --------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_fcmp.S b/lib/builtins/arm/aeabi_fcmp.S
index ea5b96c..cd311b4 100644
--- a/lib/builtins/arm/aeabi_fcmp.S
+++ b/lib/builtins/arm/aeabi_fcmp.S
@@ -1,9 +1,8 @@
 //===-- aeabi_fcmp.S - EABI fcmp* implementation ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_frsub.c b/lib/builtins/arm/aeabi_frsub.c
index 34f2303..397a8a7 100644
--- a/lib/builtins/arm/aeabi_frsub.c
+++ b/lib/builtins/arm/aeabi_frsub.c
@@ -1,9 +1,8 @@
 //===-- lib/arm/aeabi_frsub.c - Single-precision subtraction --------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_idivmod.S b/lib/builtins/arm/aeabi_idivmod.S
index 9c9c80a..bb80e4b 100644
--- a/lib/builtins/arm/aeabi_idivmod.S
+++ b/lib/builtins/arm/aeabi_idivmod.S
@@ -1,9 +1,8 @@
 //===-- aeabi_idivmod.S - EABI idivmod implementation ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_ldivmod.S b/lib/builtins/arm/aeabi_ldivmod.S
index 038ae5d..d0d06be 100644
--- a/lib/builtins/arm/aeabi_ldivmod.S
+++ b/lib/builtins/arm/aeabi_ldivmod.S
@@ -1,9 +1,8 @@
 //===-- aeabi_ldivmod.S - EABI ldivmod implementation ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_memcmp.S b/lib/builtins/arm/aeabi_memcmp.S
index e86d611..4163728 100644
--- a/lib/builtins/arm/aeabi_memcmp.S
+++ b/lib/builtins/arm/aeabi_memcmp.S
@@ -1,9 +1,8 @@
 //===-- aeabi_memcmp.S - EABI memcmp implementation -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_memcpy.S b/lib/builtins/arm/aeabi_memcpy.S
index e83c5fd..93e1b05 100644
--- a/lib/builtins/arm/aeabi_memcpy.S
+++ b/lib/builtins/arm/aeabi_memcpy.S
@@ -1,9 +1,8 @@
 //===-- aeabi_memcpy.S - EABI memcpy implementation -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_memmove.S b/lib/builtins/arm/aeabi_memmove.S
index ee28300..c2f0fa4 100644
--- a/lib/builtins/arm/aeabi_memmove.S
+++ b/lib/builtins/arm/aeabi_memmove.S
@@ -1,9 +1,8 @@
 //===-- aeabi_memmove.S - EABI memmove implementation --------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===---------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_memset.S b/lib/builtins/arm/aeabi_memset.S
index 0a678d7..2aa8ec0 100644
--- a/lib/builtins/arm/aeabi_memset.S
+++ b/lib/builtins/arm/aeabi_memset.S
@@ -1,9 +1,8 @@
 //===-- aeabi_memset.S - EABI memset implementation -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_uidivmod.S b/lib/builtins/arm/aeabi_uidivmod.S
index 88a4a6d..df03076 100644
--- a/lib/builtins/arm/aeabi_uidivmod.S
+++ b/lib/builtins/arm/aeabi_uidivmod.S
@@ -1,9 +1,8 @@
 //===-- aeabi_uidivmod.S - EABI uidivmod implementation -------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/aeabi_uldivmod.S b/lib/builtins/arm/aeabi_uldivmod.S
index be343b6..4fc9770 100644
--- a/lib/builtins/arm/aeabi_uldivmod.S
+++ b/lib/builtins/arm/aeabi_uldivmod.S
@@ -1,9 +1,8 @@
 //===-- aeabi_uldivmod.S - EABI uldivmod implementation -------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/bswapdi2.S b/lib/builtins/arm/bswapdi2.S
index e9db8ba..271df8b 100644
--- a/lib/builtins/arm/bswapdi2.S
+++ b/lib/builtins/arm/bswapdi2.S
@@ -1,9 +1,8 @@
 //===------- bswapdi2 - Implement bswapdi2 --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/bswapsi2.S b/lib/builtins/arm/bswapsi2.S
index 1f6eed5..07cc3d8 100644
--- a/lib/builtins/arm/bswapsi2.S
+++ b/lib/builtins/arm/bswapsi2.S
@@ -1,9 +1,8 @@
 //===------- bswapsi2 - Implement bswapsi2 --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/chkstk.S b/lib/builtins/arm/chkstk.S
index e300210..c5c9ebe 100644
--- a/lib/builtins/arm/chkstk.S
+++ b/lib/builtins/arm/chkstk.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/arm/clzdi2.S b/lib/builtins/arm/clzdi2.S
index fc03b38..f02b98b 100644
--- a/lib/builtins/arm/clzdi2.S
+++ b/lib/builtins/arm/clzdi2.S
@@ -1,9 +1,8 @@
 /* ===-- clzdi2.c - Implement __clzdi2 -------------------------------------===
  *
- *               The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/arm/clzsi2.S b/lib/builtins/arm/clzsi2.S
index f2ce59c..32dd148 100644
--- a/lib/builtins/arm/clzsi2.S
+++ b/lib/builtins/arm/clzsi2.S
@@ -1,9 +1,8 @@
 /* ===-- clzsi2.c - Implement __clzsi2 -------------------------------------===
  *
- *               The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/arm/comparesf2.S b/lib/builtins/arm/comparesf2.S
index c6c4cc0..5f76b6f 100644
--- a/lib/builtins/arm/comparesf2.S
+++ b/lib/builtins/arm/comparesf2.S
@@ -1,9 +1,8 @@
 //===-- comparesf2.S - Implement single-precision soft-float comparisons --===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/arm/divdf3vfp.S b/lib/builtins/arm/divdf3vfp.S
index 776ba4f..ad50b57 100644
--- a/lib/builtins/arm/divdf3vfp.S
+++ b/lib/builtins/arm/divdf3vfp.S
@@ -1,9 +1,8 @@
 //===-- divdf3vfp.S - Implement divdf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/divmodsi4.S b/lib/builtins/arm/divmodsi4.S
index 8a027b7..47a7f25 100644
--- a/lib/builtins/arm/divmodsi4.S
+++ b/lib/builtins/arm/divmodsi4.S
@@ -1,9 +1,8 @@
 /*===-- divmodsi4.S - 32-bit signed integer divide and modulus ------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/divsf3vfp.S b/lib/builtins/arm/divsf3vfp.S
index 130318f..958a672 100644
--- a/lib/builtins/arm/divsf3vfp.S
+++ b/lib/builtins/arm/divsf3vfp.S
@@ -1,9 +1,8 @@
 //===-- divsf3vfp.S - Implement divsf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/divsi3.S b/lib/builtins/arm/divsi3.S
index 19757af..ff03811 100644
--- a/lib/builtins/arm/divsi3.S
+++ b/lib/builtins/arm/divsi3.S
@@ -1,9 +1,8 @@
 /*===-- divsi3.S - 32-bit signed integer divide ---------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/eqdf2vfp.S b/lib/builtins/arm/eqdf2vfp.S
index d507065..a266df8 100644
--- a/lib/builtins/arm/eqdf2vfp.S
+++ b/lib/builtins/arm/eqdf2vfp.S
@@ -1,9 +1,8 @@
 //===-- eqdf2vfp.S - Implement eqdf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/eqsf2vfp.S b/lib/builtins/arm/eqsf2vfp.S
index fd72b2f..8524251 100644
--- a/lib/builtins/arm/eqsf2vfp.S
+++ b/lib/builtins/arm/eqsf2vfp.S
@@ -1,9 +1,8 @@
 //===-- eqsf2vfp.S - Implement eqsf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/extendsfdf2vfp.S b/lib/builtins/arm/extendsfdf2vfp.S
index 1079f97..96e26af 100644
--- a/lib/builtins/arm/extendsfdf2vfp.S
+++ b/lib/builtins/arm/extendsfdf2vfp.S
@@ -1,9 +1,8 @@
 //===-- extendsfdf2vfp.S - Implement extendsfdf2vfp -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/fixdfsivfp.S b/lib/builtins/arm/fixdfsivfp.S
index 5d7b0f8..cc9e33d 100644
--- a/lib/builtins/arm/fixdfsivfp.S
+++ b/lib/builtins/arm/fixdfsivfp.S
@@ -1,9 +1,8 @@
 //===-- fixdfsivfp.S - Implement fixdfsivfp -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/fixsfsivfp.S b/lib/builtins/arm/fixsfsivfp.S
index 805a277..8087c25 100644
--- a/lib/builtins/arm/fixsfsivfp.S
+++ b/lib/builtins/arm/fixsfsivfp.S
@@ -1,9 +1,8 @@
 //===-- fixsfsivfp.S - Implement fixsfsivfp -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/fixunsdfsivfp.S b/lib/builtins/arm/fixunsdfsivfp.S
index 4f1b2c8..3dbca87 100644
--- a/lib/builtins/arm/fixunsdfsivfp.S
+++ b/lib/builtins/arm/fixunsdfsivfp.S
@@ -1,9 +1,8 @@
 //===-- fixunsdfsivfp.S - Implement fixunsdfsivfp -------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/fixunssfsivfp.S b/lib/builtins/arm/fixunssfsivfp.S
index e5d7782..23077d4 100644
--- a/lib/builtins/arm/fixunssfsivfp.S
+++ b/lib/builtins/arm/fixunssfsivfp.S
@@ -1,9 +1,8 @@
 //===-- fixunssfsivfp.S - Implement fixunssfsivfp -------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/floatsidfvfp.S b/lib/builtins/arm/floatsidfvfp.S
index 3297ad4..17c4478 100644
--- a/lib/builtins/arm/floatsidfvfp.S
+++ b/lib/builtins/arm/floatsidfvfp.S
@@ -1,9 +1,8 @@
 //===-- floatsidfvfp.S - Implement floatsidfvfp ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/floatsisfvfp.S b/lib/builtins/arm/floatsisfvfp.S
index 65408b5..8e60ad0 100644
--- a/lib/builtins/arm/floatsisfvfp.S
+++ b/lib/builtins/arm/floatsisfvfp.S
@@ -1,9 +1,8 @@
 //===-- floatsisfvfp.S - Implement floatsisfvfp ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/floatunssidfvfp.S b/lib/builtins/arm/floatunssidfvfp.S
index d7a7024..5ccc275 100644
--- a/lib/builtins/arm/floatunssidfvfp.S
+++ b/lib/builtins/arm/floatunssidfvfp.S
@@ -1,9 +1,8 @@
 //===-- floatunssidfvfp.S - Implement floatunssidfvfp ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/floatunssisfvfp.S b/lib/builtins/arm/floatunssisfvfp.S
index 1ca8565..6b77dac 100644
--- a/lib/builtins/arm/floatunssisfvfp.S
+++ b/lib/builtins/arm/floatunssisfvfp.S
@@ -1,9 +1,8 @@
 //===-- floatunssisfvfp.S - Implement floatunssisfvfp ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/gedf2vfp.S b/lib/builtins/arm/gedf2vfp.S
index 364fc5b..11e25f8 100644
--- a/lib/builtins/arm/gedf2vfp.S
+++ b/lib/builtins/arm/gedf2vfp.S
@@ -1,9 +1,8 @@
 //===-- gedf2vfp.S - Implement gedf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/gesf2vfp.S b/lib/builtins/arm/gesf2vfp.S
index 346c347..54787e8 100644
--- a/lib/builtins/arm/gesf2vfp.S
+++ b/lib/builtins/arm/gesf2vfp.S
@@ -1,9 +1,8 @@
 //===-- gesf2vfp.S - Implement gesf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/gtdf2vfp.S b/lib/builtins/arm/gtdf2vfp.S
index 3389c3a..10cd0cb 100644
--- a/lib/builtins/arm/gtdf2vfp.S
+++ b/lib/builtins/arm/gtdf2vfp.S
@@ -1,9 +1,8 @@
 //===-- gtdf2vfp.S - Implement gtdf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/gtsf2vfp.S b/lib/builtins/arm/gtsf2vfp.S
index afdba8b..54b50bb 100644
--- a/lib/builtins/arm/gtsf2vfp.S
+++ b/lib/builtins/arm/gtsf2vfp.S
@@ -1,9 +1,8 @@
 //===-- gtsf2vfp.S - Implement gtsf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/ledf2vfp.S b/lib/builtins/arm/ledf2vfp.S
index 4bbe4c8..d33ed1b 100644
--- a/lib/builtins/arm/ledf2vfp.S
+++ b/lib/builtins/arm/ledf2vfp.S
@@ -1,9 +1,8 @@
 //===-- ledf2vfp.S - Implement ledf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/lesf2vfp.S b/lib/builtins/arm/lesf2vfp.S
index 51232bd..7ef79e8 100644
--- a/lib/builtins/arm/lesf2vfp.S
+++ b/lib/builtins/arm/lesf2vfp.S
@@ -1,9 +1,8 @@
 //===-- lesf2vfp.S - Implement lesf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/ltdf2vfp.S b/lib/builtins/arm/ltdf2vfp.S
index 8e2928c..29956d3 100644
--- a/lib/builtins/arm/ltdf2vfp.S
+++ b/lib/builtins/arm/ltdf2vfp.S
@@ -1,9 +1,8 @@
 //===-- ltdf2vfp.S - Implement ltdf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/ltsf2vfp.S b/lib/builtins/arm/ltsf2vfp.S
index 59c00c6..7b1e468 100644
--- a/lib/builtins/arm/ltsf2vfp.S
+++ b/lib/builtins/arm/ltsf2vfp.S
@@ -1,9 +1,8 @@
 //===-- ltsf2vfp.S - Implement ltsf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/modsi3.S b/lib/builtins/arm/modsi3.S
index be26383..ae90fd8 100644
--- a/lib/builtins/arm/modsi3.S
+++ b/lib/builtins/arm/modsi3.S
@@ -1,9 +1,8 @@
 /*===-- modsi3.S - 32-bit signed integer modulus --------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/muldf3vfp.S b/lib/builtins/arm/muldf3vfp.S
index aa7b234..9adc937 100644
--- a/lib/builtins/arm/muldf3vfp.S
+++ b/lib/builtins/arm/muldf3vfp.S
@@ -1,9 +1,8 @@
 //===-- muldf3vfp.S - Implement muldf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/mulsf3vfp.S b/lib/builtins/arm/mulsf3vfp.S
index a1da789..a94131b 100644
--- a/lib/builtins/arm/mulsf3vfp.S
+++ b/lib/builtins/arm/mulsf3vfp.S
@@ -1,9 +1,8 @@
 //===-- mulsf3vfp.S - Implement mulsf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/nedf2vfp.S b/lib/builtins/arm/nedf2vfp.S
index aef72eb..eb0eb97 100644
--- a/lib/builtins/arm/nedf2vfp.S
+++ b/lib/builtins/arm/nedf2vfp.S
@@ -1,9 +1,8 @@
 //===-- nedf2vfp.S - Implement nedf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/negdf2vfp.S b/lib/builtins/arm/negdf2vfp.S
index 81f0ab8..158ea6f 100644
--- a/lib/builtins/arm/negdf2vfp.S
+++ b/lib/builtins/arm/negdf2vfp.S
@@ -1,9 +1,8 @@
 //===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/negsf2vfp.S b/lib/builtins/arm/negsf2vfp.S
index 46ab4a9..2b2883d 100644
--- a/lib/builtins/arm/negsf2vfp.S
+++ b/lib/builtins/arm/negsf2vfp.S
@@ -1,9 +1,8 @@
 //===-- negsf2vfp.S - Implement negsf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/nesf2vfp.S b/lib/builtins/arm/nesf2vfp.S
index 50d60f4..c97507e 100644
--- a/lib/builtins/arm/nesf2vfp.S
+++ b/lib/builtins/arm/nesf2vfp.S
@@ -1,9 +1,8 @@
 //===-- nesf2vfp.S - Implement nesf2vfp -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/restore_vfp_d8_d15_regs.S b/lib/builtins/arm/restore_vfp_d8_d15_regs.S
index 0692cf3..fd6d59b 100644
--- a/lib/builtins/arm/restore_vfp_d8_d15_regs.S
+++ b/lib/builtins/arm/restore_vfp_d8_d15_regs.S
@@ -1,9 +1,8 @@
 //===-- save_restore_regs.S - Implement save/restore* ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/save_vfp_d8_d15_regs.S b/lib/builtins/arm/save_vfp_d8_d15_regs.S
index 544dd54..5eb3a2f 100644
--- a/lib/builtins/arm/save_vfp_d8_d15_regs.S
+++ b/lib/builtins/arm/save_vfp_d8_d15_regs.S
@@ -1,9 +1,8 @@
 //===-- save_restore_regs.S - Implement save/restore* ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/subdf3vfp.S b/lib/builtins/arm/subdf3vfp.S
index 2b6f2bd..bbd41ae 100644
--- a/lib/builtins/arm/subdf3vfp.S
+++ b/lib/builtins/arm/subdf3vfp.S
@@ -1,9 +1,8 @@
 //===-- subdf3vfp.S - Implement subdf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/subsf3vfp.S b/lib/builtins/arm/subsf3vfp.S
index 3e83ea2..80e69f2 100644
--- a/lib/builtins/arm/subsf3vfp.S
+++ b/lib/builtins/arm/subsf3vfp.S
@@ -1,9 +1,8 @@
 //===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/switch16.S b/lib/builtins/arm/switch16.S
index df9e38e..a4b568d 100644
--- a/lib/builtins/arm/switch16.S
+++ b/lib/builtins/arm/switch16.S
@@ -1,9 +1,8 @@
 //===-- switch.S - Implement switch* --------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/switch32.S b/lib/builtins/arm/switch32.S
index d97b536..f2a5af5 100644
--- a/lib/builtins/arm/switch32.S
+++ b/lib/builtins/arm/switch32.S
@@ -1,9 +1,8 @@
 //===-- switch.S - Implement switch* --------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/switch8.S b/lib/builtins/arm/switch8.S
index 4d9e0ea..0db875c 100644
--- a/lib/builtins/arm/switch8.S
+++ b/lib/builtins/arm/switch8.S
@@ -1,9 +1,8 @@
 //===-- switch.S - Implement switch* --------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/switchu8.S b/lib/builtins/arm/switchu8.S
index 4ffe35f..551abeb 100644
--- a/lib/builtins/arm/switchu8.S
+++ b/lib/builtins/arm/switchu8.S
@@ -1,9 +1,8 @@
 //===-- switch.S - Implement switch* --------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/sync-ops.h b/lib/builtins/arm/sync-ops.h
index ee02c30..4924d17 100644
--- a/lib/builtins/arm/sync-ops.h
+++ b/lib/builtins/arm/sync-ops.h
@@ -1,9 +1,8 @@
 /*===-- sync-ops.h - --===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_add_4.S b/lib/builtins/arm/sync_fetch_and_add_4.S
index 7877d6c..fe6dc13 100644
--- a/lib/builtins/arm/sync_fetch_and_add_4.S
+++ b/lib/builtins/arm/sync_fetch_and_add_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_add_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_add_8.S b/lib/builtins/arm/sync_fetch_and_add_8.S
index 1df07a3..2f13bab 100644
--- a/lib/builtins/arm/sync_fetch_and_add_8.S
+++ b/lib/builtins/arm/sync_fetch_and_add_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_add_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_and_4.S b/lib/builtins/arm/sync_fetch_and_and_4.S
index 720ff02..d6bbe2f 100644
--- a/lib/builtins/arm/sync_fetch_and_and_4.S
+++ b/lib/builtins/arm/sync_fetch_and_and_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_and_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_and_8.S b/lib/builtins/arm/sync_fetch_and_and_8.S
index 4f7b5ca..8c7be4d 100644
--- a/lib/builtins/arm/sync_fetch_and_and_8.S
+++ b/lib/builtins/arm/sync_fetch_and_and_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_and_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_max_4.S b/lib/builtins/arm/sync_fetch_and_max_4.S
index 43da9c7..9fe814f 100644
--- a/lib/builtins/arm/sync_fetch_and_max_4.S
+++ b/lib/builtins/arm/sync_fetch_and_max_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_max_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_max_8.S b/lib/builtins/arm/sync_fetch_and_max_8.S
index 898fc62..a15f7e0 100644
--- a/lib/builtins/arm/sync_fetch_and_max_8.S
+++ b/lib/builtins/arm/sync_fetch_and_max_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_max_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_min_4.S b/lib/builtins/arm/sync_fetch_and_min_4.S
index bba31a0..2895fb9 100644
--- a/lib/builtins/arm/sync_fetch_and_min_4.S
+++ b/lib/builtins/arm/sync_fetch_and_min_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_min_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_min_8.S b/lib/builtins/arm/sync_fetch_and_min_8.S
index e7ccf9f..f16e2ad 100644
--- a/lib/builtins/arm/sync_fetch_and_min_8.S
+++ b/lib/builtins/arm/sync_fetch_and_min_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_min_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_nand_4.S b/lib/builtins/arm/sync_fetch_and_nand_4.S
index c13dd39..336e22a 100644
--- a/lib/builtins/arm/sync_fetch_and_nand_4.S
+++ b/lib/builtins/arm/sync_fetch_and_nand_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_nand_4.S - -----------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_nand_8.S b/lib/builtins/arm/sync_fetch_and_nand_8.S
index e8107ab..855b3f9 100644
--- a/lib/builtins/arm/sync_fetch_and_nand_8.S
+++ b/lib/builtins/arm/sync_fetch_and_nand_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_nand_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_or_4.S b/lib/builtins/arm/sync_fetch_and_or_4.S
index 6726571..34de77b 100644
--- a/lib/builtins/arm/sync_fetch_and_or_4.S
+++ b/lib/builtins/arm/sync_fetch_and_or_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_or_4.S - -------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_or_8.S b/lib/builtins/arm/sync_fetch_and_or_8.S
index f7f162c..456cd7c 100644
--- a/lib/builtins/arm/sync_fetch_and_or_8.S
+++ b/lib/builtins/arm/sync_fetch_and_or_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_or_8.S - -------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_sub_4.S b/lib/builtins/arm/sync_fetch_and_sub_4.S
index b9326b1..e2b1234 100644
--- a/lib/builtins/arm/sync_fetch_and_sub_4.S
+++ b/lib/builtins/arm/sync_fetch_and_sub_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_sub_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_sub_8.S b/lib/builtins/arm/sync_fetch_and_sub_8.S
index 6ce743e..123aec1 100644
--- a/lib/builtins/arm/sync_fetch_and_sub_8.S
+++ b/lib/builtins/arm/sync_fetch_and_sub_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_sub_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_umax_4.S b/lib/builtins/arm/sync_fetch_and_umax_4.S
index b8d19ff..12ef3b6 100644
--- a/lib/builtins/arm/sync_fetch_and_umax_4.S
+++ b/lib/builtins/arm/sync_fetch_and_umax_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_umax_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_umax_8.S b/lib/builtins/arm/sync_fetch_and_umax_8.S
index 34442fd..4319b49 100644
--- a/lib/builtins/arm/sync_fetch_and_umax_8.S
+++ b/lib/builtins/arm/sync_fetch_and_umax_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_umax_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_umin_4.S b/lib/builtins/arm/sync_fetch_and_umin_4.S
index 0998e3e..f384db6 100644
--- a/lib/builtins/arm/sync_fetch_and_umin_4.S
+++ b/lib/builtins/arm/sync_fetch_and_umin_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_umin_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_umin_8.S b/lib/builtins/arm/sync_fetch_and_umin_8.S
index 558f913..a47142f 100644
--- a/lib/builtins/arm/sync_fetch_and_umin_8.S
+++ b/lib/builtins/arm/sync_fetch_and_umin_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_umin_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_xor_4.S b/lib/builtins/arm/sync_fetch_and_xor_4.S
index 824f491..8143973 100644
--- a/lib/builtins/arm/sync_fetch_and_xor_4.S
+++ b/lib/builtins/arm/sync_fetch_and_xor_4.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_xor_4.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_fetch_and_xor_8.S b/lib/builtins/arm/sync_fetch_and_xor_8.S
index 073fb9c..ce861d4 100644
--- a/lib/builtins/arm/sync_fetch_and_xor_8.S
+++ b/lib/builtins/arm/sync_fetch_and_xor_8.S
@@ -1,9 +1,8 @@
 /*===-- sync_fetch_and_xor_8.S - ------------------------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/sync_synchronize.S b/lib/builtins/arm/sync_synchronize.S
index 61d1db9..064e4f9 100644
--- a/lib/builtins/arm/sync_synchronize.S
+++ b/lib/builtins/arm/sync_synchronize.S
@@ -1,9 +1,8 @@
 //===-- sync_synchronize - Implement memory barrier * ----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/truncdfsf2vfp.S b/lib/builtins/arm/truncdfsf2vfp.S
index 682e54d..06f3f21 100644
--- a/lib/builtins/arm/truncdfsf2vfp.S
+++ b/lib/builtins/arm/truncdfsf2vfp.S
@@ -1,9 +1,8 @@
 //===-- truncdfsf2vfp.S - Implement truncdfsf2vfp -------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/udivmodsi4.S b/lib/builtins/arm/udivmodsi4.S
index ee3950c..17a2580 100644
--- a/lib/builtins/arm/udivmodsi4.S
+++ b/lib/builtins/arm/udivmodsi4.S
@@ -1,9 +1,8 @@
 /*===-- udivmodsi4.S - 32-bit unsigned integer divide and modulus ---------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/udivsi3.S b/lib/builtins/arm/udivsi3.S
index 6dea27d..d310d81 100644
--- a/lib/builtins/arm/udivsi3.S
+++ b/lib/builtins/arm/udivsi3.S
@@ -1,9 +1,8 @@
 /*===-- udivsi3.S - 32-bit unsigned integer divide ------------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/umodsi3.S b/lib/builtins/arm/umodsi3.S
index 069fad3..261a5c7 100644
--- a/lib/builtins/arm/umodsi3.S
+++ b/lib/builtins/arm/umodsi3.S
@@ -1,9 +1,8 @@
 /*===-- umodsi3.S - 32-bit unsigned integer modulus -----------------------===//
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===//
  *
diff --git a/lib/builtins/arm/unorddf2vfp.S b/lib/builtins/arm/unorddf2vfp.S
index 6625fa8..d5f51d4 100644
--- a/lib/builtins/arm/unorddf2vfp.S
+++ b/lib/builtins/arm/unorddf2vfp.S
@@ -1,9 +1,8 @@
 //===-- unorddf2vfp.S - Implement unorddf2vfp ------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/arm/unordsf2vfp.S b/lib/builtins/arm/unordsf2vfp.S
index 0b5da2b..05ac67a 100644
--- a/lib/builtins/arm/unordsf2vfp.S
+++ b/lib/builtins/arm/unordsf2vfp.S
@@ -1,9 +1,8 @@
 //===-- unordsf2vfp.S - Implement unordsf2vfp -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/ashldi3.c b/lib/builtins/ashldi3.c
index a5c1836..c199b12 100644
--- a/lib/builtins/ashldi3.c
+++ b/lib/builtins/ashldi3.c
@@ -1,9 +1,8 @@
 /* ====-- ashldi3.c - Implement __ashldi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ashlti3.c b/lib/builtins/ashlti3.c
index 638ae84..d5530fb 100644
--- a/lib/builtins/ashlti3.c
+++ b/lib/builtins/ashlti3.c
@@ -1,9 +1,8 @@
 /* ===-- ashlti3.c - Implement __ashlti3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ashrdi3.c b/lib/builtins/ashrdi3.c
index 8461996..fe97245 100644
--- a/lib/builtins/ashrdi3.c
+++ b/lib/builtins/ashrdi3.c
@@ -1,9 +1,8 @@
 /*===-- ashrdi3.c - Implement __ashrdi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ashrti3.c b/lib/builtins/ashrti3.c
index f78205d..5a497ed 100644
--- a/lib/builtins/ashrti3.c
+++ b/lib/builtins/ashrti3.c
@@ -1,9 +1,8 @@
 /* ===-- ashrti3.c - Implement __ashrti3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/assembly.h b/lib/builtins/assembly.h
index 3f5e59b..ff49fd4 100644
--- a/lib/builtins/assembly.h
+++ b/lib/builtins/assembly.h
@@ -1,9 +1,8 @@
 /* ===-- assembly.h - compiler-rt assembler support macros -----------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/atomic.c b/lib/builtins/atomic.c
index ee35e34..87a7e85 100644
--- a/lib/builtins/atomic.c
+++ b/lib/builtins/atomic.c
@@ -1,9 +1,8 @@
 /*===-- atomic.c - Implement support functions for atomic operations.------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/atomic_flag_clear.c b/lib/builtins/atomic_flag_clear.c
index da912af..dd3aa57 100644
--- a/lib/builtins/atomic_flag_clear.c
+++ b/lib/builtins/atomic_flag_clear.c
@@ -1,9 +1,8 @@
 /*===-- atomic_flag_clear.c -------------------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===------------------------------------------------------------------------===
  *
diff --git a/lib/builtins/atomic_flag_clear_explicit.c b/lib/builtins/atomic_flag_clear_explicit.c
index 1059b78..dbcecba 100644
--- a/lib/builtins/atomic_flag_clear_explicit.c
+++ b/lib/builtins/atomic_flag_clear_explicit.c
@@ -1,9 +1,8 @@
 /*===-- atomic_flag_clear_explicit.c ----------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===------------------------------------------------------------------------===
  *
diff --git a/lib/builtins/atomic_flag_test_and_set.c b/lib/builtins/atomic_flag_test_and_set.c
index e8811d3..bfec77d 100644
--- a/lib/builtins/atomic_flag_test_and_set.c
+++ b/lib/builtins/atomic_flag_test_and_set.c
@@ -1,9 +1,8 @@
 /*===-- atomic_flag_test_and_set.c ------------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===------------------------------------------------------------------------===
  *
diff --git a/lib/builtins/atomic_flag_test_and_set_explicit.c b/lib/builtins/atomic_flag_test_and_set_explicit.c
index 5c8c2df..7223a66 100644
--- a/lib/builtins/atomic_flag_test_and_set_explicit.c
+++ b/lib/builtins/atomic_flag_test_and_set_explicit.c
@@ -1,9 +1,8 @@
 /*===-- atomic_flag_test_and_set_explicit.c ---------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===------------------------------------------------------------------------===
  *
diff --git a/lib/builtins/atomic_signal_fence.c b/lib/builtins/atomic_signal_fence.c
index 9ccc2ae..db9deb8 100644
--- a/lib/builtins/atomic_signal_fence.c
+++ b/lib/builtins/atomic_signal_fence.c
@@ -1,9 +1,8 @@
 /*===-- atomic_signal_fence.c -----------------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===------------------------------------------------------------------------===
  *
diff --git a/lib/builtins/atomic_thread_fence.c b/lib/builtins/atomic_thread_fence.c
index d225601..0221121 100644
--- a/lib/builtins/atomic_thread_fence.c
+++ b/lib/builtins/atomic_thread_fence.c
@@ -1,9 +1,8 @@
 /*===-- atomic_thread_fence.c -----------------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===------------------------------------------------------------------------===
  *
diff --git a/lib/builtins/bswapdi2.c b/lib/builtins/bswapdi2.c
index eb22000..eb0ad91 100644
--- a/lib/builtins/bswapdi2.c
+++ b/lib/builtins/bswapdi2.c
@@ -1,9 +1,8 @@
 /* ===-- bswapdi2.c - Implement __bswapdi2 ---------------------------------===
  *
- *               The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/bswapsi2.c b/lib/builtins/bswapsi2.c
index 5d941e6..dbac457 100644
--- a/lib/builtins/bswapsi2.c
+++ b/lib/builtins/bswapsi2.c
@@ -1,9 +1,8 @@
 /* ===-- bswapsi2.c - Implement __bswapsi2 ---------------------------------===
  *
- *               The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/clear_cache.c b/lib/builtins/clear_cache.c
index 9dcab34..4dabe46 100644
--- a/lib/builtins/clear_cache.c
+++ b/lib/builtins/clear_cache.c
@@ -1,9 +1,8 @@
 /* ===-- clear_cache.c - Implement __clear_cache ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/clzdi2.c b/lib/builtins/clzdi2.c
index 1819e6b..cc8c96f 100644
--- a/lib/builtins/clzdi2.c
+++ b/lib/builtins/clzdi2.c
@@ -1,9 +1,8 @@
 /* ===-- clzdi2.c - Implement __clzdi2 -------------------------------------===
  *
- *               The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/clzsi2.c b/lib/builtins/clzsi2.c
index 25b8ed2..fe06f06 100644
--- a/lib/builtins/clzsi2.c
+++ b/lib/builtins/clzsi2.c
@@ -1,9 +1,8 @@
 /* ===-- clzsi2.c - Implement __clzsi2 -------------------------------------===
  *
- *               The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/clzti2.c b/lib/builtins/clzti2.c
index 15a7b3c..77da65c 100644
--- a/lib/builtins/clzti2.c
+++ b/lib/builtins/clzti2.c
@@ -1,9 +1,8 @@
 /* ===-- clzti2.c - Implement __clzti2 -------------------------------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/cmpdi2.c b/lib/builtins/cmpdi2.c
index 52634d9..c1ea9ee 100644
--- a/lib/builtins/cmpdi2.c
+++ b/lib/builtins/cmpdi2.c
@@ -1,9 +1,8 @@
 /* ===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/cmpti2.c b/lib/builtins/cmpti2.c
index 2c8b56e..04bcaac 100644
--- a/lib/builtins/cmpti2.c
+++ b/lib/builtins/cmpti2.c
@@ -1,9 +1,8 @@
 /* ===-- cmpti2.c - Implement __cmpti2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/comparedf2.c b/lib/builtins/comparedf2.c
index 44e5d2b..56825e4 100644
--- a/lib/builtins/comparedf2.c
+++ b/lib/builtins/comparedf2.c
@@ -1,9 +1,8 @@
 //===-- lib/comparedf2.c - Double-precision comparisons -----------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/comparesf2.c b/lib/builtins/comparesf2.c
index 43cd6a6..4c3e39a 100644
--- a/lib/builtins/comparesf2.c
+++ b/lib/builtins/comparesf2.c
@@ -1,9 +1,8 @@
 //===-- lib/comparesf2.c - Single-precision comparisons -----------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/comparetf2.c b/lib/builtins/comparetf2.c
index c0ad8ed..f3fb22a 100644
--- a/lib/builtins/comparetf2.c
+++ b/lib/builtins/comparetf2.c
@@ -1,9 +1,8 @@
 //===-- lib/comparetf2.c - Quad-precision comparisons -------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/ctzdi2.c b/lib/builtins/ctzdi2.c
index ef6d7fe..a25fde1 100644
--- a/lib/builtins/ctzdi2.c
+++ b/lib/builtins/ctzdi2.c
@@ -1,9 +1,8 @@
 /* ===-- ctzdi2.c - Implement __ctzdi2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ctzsi2.c b/lib/builtins/ctzsi2.c
index c69486e..d5dfe25 100644
--- a/lib/builtins/ctzsi2.c
+++ b/lib/builtins/ctzsi2.c
@@ -1,9 +1,8 @@
 /* ===-- ctzsi2.c - Implement __ctzsi2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ctzti2.c b/lib/builtins/ctzti2.c
index 45de682..aa24379 100644
--- a/lib/builtins/ctzti2.c
+++ b/lib/builtins/ctzti2.c
@@ -1,9 +1,8 @@
 /* ===-- ctzti2.c - Implement __ctzti2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divdc3.c b/lib/builtins/divdc3.c
index 392d6ec..122aba2 100644
--- a/lib/builtins/divdc3.c
+++ b/lib/builtins/divdc3.c
@@ -1,9 +1,8 @@
 /* ===-- divdc3.c - Implement __divdc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divdf3.c b/lib/builtins/divdf3.c
index 411c82e..3993507 100644
--- a/lib/builtins/divdf3.c
+++ b/lib/builtins/divdf3.c
@@ -1,9 +1,8 @@
 //===-- lib/divdf3.c - Double-precision division ------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/divdi3.c b/lib/builtins/divdi3.c
index b8eebcb..24608ee 100644
--- a/lib/builtins/divdi3.c
+++ b/lib/builtins/divdi3.c
@@ -1,9 +1,8 @@
 /* ===-- divdi3.c - Implement __divdi3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divmoddi4.c b/lib/builtins/divmoddi4.c
index 0d4df67..a5e129d 100644
--- a/lib/builtins/divmoddi4.c
+++ b/lib/builtins/divmoddi4.c
@@ -1,9 +1,8 @@
 /*===-- divmoddi4.c - Implement __divmoddi4 --------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divmodsi4.c b/lib/builtins/divmodsi4.c
index dabe287..3977108 100644
--- a/lib/builtins/divmodsi4.c
+++ b/lib/builtins/divmodsi4.c
@@ -1,9 +1,8 @@
 /*===-- divmodsi4.c - Implement __divmodsi4 --------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divsc3.c b/lib/builtins/divsc3.c
index 0d18a25..43b0981 100644
--- a/lib/builtins/divsc3.c
+++ b/lib/builtins/divsc3.c
@@ -1,9 +1,8 @@
 /*===-- divsc3.c - Implement __divsc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divsf3.c b/lib/builtins/divsf3.c
index a74917f..97cbcc1 100644
--- a/lib/builtins/divsf3.c
+++ b/lib/builtins/divsf3.c
@@ -1,9 +1,8 @@
 //===-- lib/divsf3.c - Single-precision division ------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/divsi3.c b/lib/builtins/divsi3.c
index 75aea00..dac7aa5 100644
--- a/lib/builtins/divsi3.c
+++ b/lib/builtins/divsi3.c
@@ -1,9 +1,8 @@
 /* ===-- divsi3.c - Implement __divsi3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divtc3.c b/lib/builtins/divtc3.c
index e5ea00d..9c06a70 100644
--- a/lib/builtins/divtc3.c
+++ b/lib/builtins/divtc3.c
@@ -1,9 +1,8 @@
 /*===-- divtc3.c - Implement __divtc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divtf3.c b/lib/builtins/divtf3.c
index e81dab8..1727374 100644
--- a/lib/builtins/divtf3.c
+++ b/lib/builtins/divtf3.c
@@ -1,9 +1,8 @@
 //===-- lib/divtf3.c - Quad-precision division --------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/divti3.c b/lib/builtins/divti3.c
index c73eae2..7c8f116 100644
--- a/lib/builtins/divti3.c
+++ b/lib/builtins/divti3.c
@@ -1,9 +1,8 @@
 /* ===-- divti3.c - Implement __divti3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/divxc3.c b/lib/builtins/divxc3.c
index 6f49280..8ded346 100644
--- a/lib/builtins/divxc3.c
+++ b/lib/builtins/divxc3.c
@@ -1,9 +1,8 @@
 /* ===-- divxc3.c - Implement __divxc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/emutls.c b/lib/builtins/emutls.c
index ef95a1c..974bfb0 100644
--- a/lib/builtins/emutls.c
+++ b/lib/builtins/emutls.c
@@ -1,9 +1,8 @@
 /* ===---------- emutls.c - Implements __emutls_get_address ---------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/enable_execute_stack.c b/lib/builtins/enable_execute_stack.c
index 327d460..1318ea9 100644
--- a/lib/builtins/enable_execute_stack.c
+++ b/lib/builtins/enable_execute_stack.c
@@ -1,9 +1,8 @@
 /* ===-- enable_execute_stack.c - Implement __enable_execute_stack ---------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/eprintf.c b/lib/builtins/eprintf.c
index 89f34b1..68e73c7 100644
--- a/lib/builtins/eprintf.c
+++ b/lib/builtins/eprintf.c
@@ -1,9 +1,8 @@
 /* ===---------- eprintf.c - Implements __eprintf --------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/extenddftf2.c b/lib/builtins/extenddftf2.c
index 86dab8f..1f9b3fe 100644
--- a/lib/builtins/extenddftf2.c
+++ b/lib/builtins/extenddftf2.c
@@ -1,9 +1,8 @@
 //===-- lib/extenddftf2.c - double -> quad conversion -------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/extendhfsf2.c b/lib/builtins/extendhfsf2.c
index d9c0db8..1a2fbf4 100644
--- a/lib/builtins/extendhfsf2.c
+++ b/lib/builtins/extendhfsf2.c
@@ -1,9 +1,8 @@
 //===-- lib/extendhfsf2.c - half -> single conversion -------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/extendsfdf2.c b/lib/builtins/extendsfdf2.c
index 3d84529..871f58e 100644
--- a/lib/builtins/extendsfdf2.c
+++ b/lib/builtins/extendsfdf2.c
@@ -1,9 +1,8 @@
 //===-- lib/extendsfdf2.c - single -> double conversion -----------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/extendsftf2.c b/lib/builtins/extendsftf2.c
index 2eeeba2..ee4f3b4 100644
--- a/lib/builtins/extendsftf2.c
+++ b/lib/builtins/extendsftf2.c
@@ -1,9 +1,8 @@
 //===-- lib/extendsftf2.c - single -> quad conversion -------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/ffsdi2.c b/lib/builtins/ffsdi2.c
index a5ac990..1c1e082 100644
--- a/lib/builtins/ffsdi2.c
+++ b/lib/builtins/ffsdi2.c
@@ -1,9 +1,8 @@
 /* ===-- ffsdi2.c - Implement __ffsdi2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ffssi2.c b/lib/builtins/ffssi2.c
index e5180ef..16056e0 100644
--- a/lib/builtins/ffssi2.c
+++ b/lib/builtins/ffssi2.c
@@ -1,9 +1,8 @@
 /* ===-- ffssi2.c - Implement __ffssi2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ffsti2.c b/lib/builtins/ffsti2.c
index dcdb3bd..91beb61 100644
--- a/lib/builtins/ffsti2.c
+++ b/lib/builtins/ffsti2.c
@@ -1,9 +1,8 @@
 /* ===-- ffsti2.c - Implement __ffsti2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fixdfdi.c b/lib/builtins/fixdfdi.c
index 54e312d..17c73fe 100644
--- a/lib/builtins/fixdfdi.c
+++ b/lib/builtins/fixdfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixdfdi.c - Implement __fixdfdi -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixdfsi.c b/lib/builtins/fixdfsi.c
index 5b95881..e895087 100644
--- a/lib/builtins/fixdfsi.c
+++ b/lib/builtins/fixdfsi.c
@@ -1,9 +1,8 @@
 /* ===-- fixdfsi.c - Implement __fixdfsi -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixdfti.c b/lib/builtins/fixdfti.c
index aaf225e..7d49740 100644
--- a/lib/builtins/fixdfti.c
+++ b/lib/builtins/fixdfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixdfti.c - Implement __fixdfti -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixsfdi.c b/lib/builtins/fixsfdi.c
index 32e87c6..004baa0 100644
--- a/lib/builtins/fixsfdi.c
+++ b/lib/builtins/fixsfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixsfdi.c - Implement __fixsfdi -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixsfsi.c b/lib/builtins/fixsfsi.c
index e94e5f3..961470b 100644
--- a/lib/builtins/fixsfsi.c
+++ b/lib/builtins/fixsfsi.c
@@ -1,9 +1,8 @@
 /* ===-- fixsfsi.c - Implement __fixsfsi -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixsfti.c b/lib/builtins/fixsfti.c
index 3a159b3..c975eeb 100644
--- a/lib/builtins/fixsfti.c
+++ b/lib/builtins/fixsfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixsfti.c - Implement __fixsfti -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixtfdi.c b/lib/builtins/fixtfdi.c
index bc9dea1..9d34f01 100644
--- a/lib/builtins/fixtfdi.c
+++ b/lib/builtins/fixtfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixtfdi.c - Implement __fixtfdi -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixtfsi.c b/lib/builtins/fixtfsi.c
index feb3de8..ca25b0d 100644
--- a/lib/builtins/fixtfsi.c
+++ b/lib/builtins/fixtfsi.c
@@ -1,9 +1,8 @@
 /* ===-- fixtfsi.c - Implement __fixtfsi -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixtfti.c b/lib/builtins/fixtfti.c
index ee4ada8..dde0331 100644
--- a/lib/builtins/fixtfti.c
+++ b/lib/builtins/fixtfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixtfti.c - Implement __fixtfti -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunsdfdi.c b/lib/builtins/fixunsdfdi.c
index bfe4dbb..799861e 100644
--- a/lib/builtins/fixunsdfdi.c
+++ b/lib/builtins/fixunsdfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunsdfdi.c - Implement __fixunsdfdi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunsdfsi.c b/lib/builtins/fixunsdfsi.c
index 3c5355b..266fe79 100644
--- a/lib/builtins/fixunsdfsi.c
+++ b/lib/builtins/fixunsdfsi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunsdfsi.c - Implement __fixunsdfsi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunsdfti.c b/lib/builtins/fixunsdfti.c
index f8046a0..fcbbfeb 100644
--- a/lib/builtins/fixunsdfti.c
+++ b/lib/builtins/fixunsdfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixunsdfti.c - Implement __fixunsdfti -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunssfdi.c b/lib/builtins/fixunssfdi.c
index 080a25b..de71e7c 100644
--- a/lib/builtins/fixunssfdi.c
+++ b/lib/builtins/fixunssfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunssfdi.c - Implement __fixunssfdi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunssfsi.c b/lib/builtins/fixunssfsi.c
index eca2916..b44e8c4 100644
--- a/lib/builtins/fixunssfsi.c
+++ b/lib/builtins/fixunssfsi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunssfsi.c - Implement __fixunssfsi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fixunssfti.c b/lib/builtins/fixunssfti.c
index 862d7bd..6b17847 100644
--- a/lib/builtins/fixunssfti.c
+++ b/lib/builtins/fixunssfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixunssfti.c - Implement __fixunssfti -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fixunstfdi.c b/lib/builtins/fixunstfdi.c
index b2995f6..e82f628 100644
--- a/lib/builtins/fixunstfdi.c
+++ b/lib/builtins/fixunstfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunstfdi.c - Implement __fixunstfdi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunstfsi.c b/lib/builtins/fixunstfsi.c
index b5d3f6a..b196174 100644
--- a/lib/builtins/fixunstfsi.c
+++ b/lib/builtins/fixunstfsi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunstfsi.c - Implement __fixunstfsi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunstfti.c b/lib/builtins/fixunstfti.c
index 22ff9df..c2b4ffc 100644
--- a/lib/builtins/fixunstfti.c
+++ b/lib/builtins/fixunstfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixunstfsi.c - Implement __fixunstfsi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/fixunsxfdi.c b/lib/builtins/fixunsxfdi.c
index 075304e..bd49a4a 100644
--- a/lib/builtins/fixunsxfdi.c
+++ b/lib/builtins/fixunsxfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunsxfdi.c - Implement __fixunsxfdi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fixunsxfsi.c b/lib/builtins/fixunsxfsi.c
index c3c70f7..372d0f6 100644
--- a/lib/builtins/fixunsxfsi.c
+++ b/lib/builtins/fixunsxfsi.c
@@ -1,9 +1,8 @@
 /* ===-- fixunsxfsi.c - Implement __fixunsxfsi -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fixunsxfti.c b/lib/builtins/fixunsxfti.c
index fb39d00..05da75c 100644
--- a/lib/builtins/fixunsxfti.c
+++ b/lib/builtins/fixunsxfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixunsxfti.c - Implement __fixunsxfti -----------------------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fixxfdi.c b/lib/builtins/fixxfdi.c
index 011787f..30302e7 100644
--- a/lib/builtins/fixxfdi.c
+++ b/lib/builtins/fixxfdi.c
@@ -1,9 +1,8 @@
 /* ===-- fixxfdi.c - Implement __fixxfdi -----------------------------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fixxfti.c b/lib/builtins/fixxfti.c
index 968a4f0..780a4f1 100644
--- a/lib/builtins/fixxfti.c
+++ b/lib/builtins/fixxfti.c
@@ -1,9 +1,8 @@
 /* ===-- fixxfti.c - Implement __fixxfti -----------------------------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatdidf.c b/lib/builtins/floatdidf.c
index 36b856e..11f8084 100644
--- a/lib/builtins/floatdidf.c
+++ b/lib/builtins/floatdidf.c
@@ -1,9 +1,8 @@
 /*===-- floatdidf.c - Implement __floatdidf -------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatdisf.c b/lib/builtins/floatdisf.c
index a2f09eb..88e2e81 100644
--- a/lib/builtins/floatdisf.c
+++ b/lib/builtins/floatdisf.c
@@ -1,9 +1,8 @@
 /*===-- floatdisf.c - Implement __floatdisf -------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatditf.c b/lib/builtins/floatditf.c
index cd51dd8..d7c252d 100644
--- a/lib/builtins/floatditf.c
+++ b/lib/builtins/floatditf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatditf.c - integer -> quad-precision conversion ----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatdixf.c b/lib/builtins/floatdixf.c
index d39e81d..140f046 100644
--- a/lib/builtins/floatdixf.c
+++ b/lib/builtins/floatdixf.c
@@ -1,9 +1,8 @@
 /* ===-- floatdixf.c - Implement __floatdixf -------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatsidf.c b/lib/builtins/floatsidf.c
index fe05112..56ba903 100644
--- a/lib/builtins/floatsidf.c
+++ b/lib/builtins/floatsidf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatsidf.c - integer -> double-precision conversion --*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatsisf.c b/lib/builtins/floatsisf.c
index bf087ee..dbdaecc 100644
--- a/lib/builtins/floatsisf.c
+++ b/lib/builtins/floatsisf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatsisf.c - integer -> single-precision conversion --*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatsitf.c b/lib/builtins/floatsitf.c
index f0abca3..e539945 100644
--- a/lib/builtins/floatsitf.c
+++ b/lib/builtins/floatsitf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatsitf.c - integer -> quad-precision conversion ----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floattidf.c b/lib/builtins/floattidf.c
index 2702a3c..7c87f57 100644
--- a/lib/builtins/floattidf.c
+++ b/lib/builtins/floattidf.c
@@ -1,9 +1,8 @@
 /* ===-- floattidf.c - Implement __floattidf -------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floattisf.c b/lib/builtins/floattisf.c
index f1b585f..c30b8f8 100644
--- a/lib/builtins/floattisf.c
+++ b/lib/builtins/floattisf.c
@@ -1,9 +1,8 @@
 /* ===-- floattisf.c - Implement __floattisf -------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floattitf.c b/lib/builtins/floattitf.c
index 994fded..b558171 100644
--- a/lib/builtins/floattitf.c
+++ b/lib/builtins/floattitf.c
@@ -1,9 +1,8 @@
 //===-- lib/floattitf.c - int128 -> quad-precision conversion -----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floattixf.c b/lib/builtins/floattixf.c
index 1203b3a..09a48ca 100644
--- a/lib/builtins/floattixf.c
+++ b/lib/builtins/floattixf.c
@@ -1,9 +1,8 @@
 /* ===-- floattixf.c - Implement __floattixf -------------------------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatundidf.c b/lib/builtins/floatundidf.c
index 8bc2a09..2c5c68e 100644
--- a/lib/builtins/floatundidf.c
+++ b/lib/builtins/floatundidf.c
@@ -1,9 +1,8 @@
 /* ===-- floatundidf.c - Implement __floatundidf ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatundisf.c b/lib/builtins/floatundisf.c
index 844786e..62e7458 100644
--- a/lib/builtins/floatundisf.c
+++ b/lib/builtins/floatundisf.c
@@ -1,9 +1,8 @@
 /*===-- floatundisf.c - Implement __floatundisf ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatunditf.c b/lib/builtins/floatunditf.c
index 8098e95..2814f57 100644
--- a/lib/builtins/floatunditf.c
+++ b/lib/builtins/floatunditf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatunditf.c - uint -> quad-precision conversion -----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatundixf.c b/lib/builtins/floatundixf.c
index ca5e06d..5e715b3 100644
--- a/lib/builtins/floatundixf.c
+++ b/lib/builtins/floatundixf.c
@@ -1,9 +1,8 @@
 /* ===-- floatundixf.c - Implement __floatundixf ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatunsidf.c b/lib/builtins/floatunsidf.c
index 75cf6b9..508f33a 100644
--- a/lib/builtins/floatunsidf.c
+++ b/lib/builtins/floatunsidf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatunsidf.c - uint -> double-precision conversion ---*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatunsisf.c b/lib/builtins/floatunsisf.c
index 29525cc..dd4639e 100644
--- a/lib/builtins/floatunsisf.c
+++ b/lib/builtins/floatunsisf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatunsisf.c - uint -> single-precision conversion ---*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatunsitf.c b/lib/builtins/floatunsitf.c
index 1cd1842..6158233 100644
--- a/lib/builtins/floatunsitf.c
+++ b/lib/builtins/floatunsitf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatunsitf.c - uint -> quad-precision conversion -----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatuntidf.c b/lib/builtins/floatuntidf.c
index 960265d..7290488 100644
--- a/lib/builtins/floatuntidf.c
+++ b/lib/builtins/floatuntidf.c
@@ -1,9 +1,8 @@
 /* ===-- floatuntidf.c - Implement __floatuntidf ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatuntisf.c b/lib/builtins/floatuntisf.c
index c0dd027..052c00d 100644
--- a/lib/builtins/floatuntisf.c
+++ b/lib/builtins/floatuntisf.c
@@ -1,9 +1,8 @@
 /* ===-- floatuntisf.c - Implement __floatuntisf ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/floatuntitf.c b/lib/builtins/floatuntitf.c
index e2518c9..dca071d 100644
--- a/lib/builtins/floatuntitf.c
+++ b/lib/builtins/floatuntitf.c
@@ -1,9 +1,8 @@
 //===-- lib/floatuntitf.c - uint128 -> quad-precision conversion --*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/floatuntixf.c b/lib/builtins/floatuntixf.c
index ea81cb1..f44919c 100644
--- a/lib/builtins/floatuntixf.c
+++ b/lib/builtins/floatuntixf.c
@@ -1,9 +1,8 @@
 /* ===-- floatuntixf.c - Implement __floatuntixf ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/fp_add_impl.inc b/lib/builtins/fp_add_impl.inc
index b47be1b..f9a32ce 100644
--- a/lib/builtins/fp_add_impl.inc
+++ b/lib/builtins/fp_add_impl.inc
@@ -1,9 +1,8 @@
 //===----- lib/fp_add_impl.inc - floaing point addition -----------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_extend.h b/lib/builtins/fp_extend.h
index 6d95a06..08a135c 100644
--- a/lib/builtins/fp_extend.h
+++ b/lib/builtins/fp_extend.h
@@ -1,9 +1,8 @@
 //===-lib/fp_extend.h - low precision -> high precision conversion -*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_extend_impl.inc b/lib/builtins/fp_extend_impl.inc
index b785cc7..5763cd1 100644
--- a/lib/builtins/fp_extend_impl.inc
+++ b/lib/builtins/fp_extend_impl.inc
@@ -1,9 +1,8 @@
 //=-lib/fp_extend_impl.inc - low precision -> high precision conversion -*-- -//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_fixint_impl.inc b/lib/builtins/fp_fixint_impl.inc
index da70d4d..0139b05 100644
--- a/lib/builtins/fp_fixint_impl.inc
+++ b/lib/builtins/fp_fixint_impl.inc
@@ -1,9 +1,8 @@
 //===-- lib/fixdfsi.c - Double-precision -> integer conversion ----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_fixuint_impl.inc b/lib/builtins/fp_fixuint_impl.inc
index d68ccf2..73b1093 100644
--- a/lib/builtins/fp_fixuint_impl.inc
+++ b/lib/builtins/fp_fixuint_impl.inc
@@ -1,9 +1,8 @@
 //===-- lib/fixdfsi.c - Double-precision -> integer conversion ----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_lib.h b/lib/builtins/fp_lib.h
index a0e19ab..74ef570 100644
--- a/lib/builtins/fp_lib.h
+++ b/lib/builtins/fp_lib.h
@@ -1,9 +1,8 @@
 //===-- lib/fp_lib.h - Floating-point utilities -------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_mul_impl.inc b/lib/builtins/fp_mul_impl.inc
index b34aa1b..8934e63 100644
--- a/lib/builtins/fp_mul_impl.inc
+++ b/lib/builtins/fp_mul_impl.inc
@@ -1,9 +1,8 @@
 //===---- lib/fp_mul_impl.inc - floating point multiplication -----*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_trunc.h b/lib/builtins/fp_trunc.h
index d5e79bb..a02db2a 100644
--- a/lib/builtins/fp_trunc.h
+++ b/lib/builtins/fp_trunc.h
@@ -1,9 +1,8 @@
 //=== lib/fp_trunc.h - high precision -> low precision conversion *- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/fp_trunc_impl.inc b/lib/builtins/fp_trunc_impl.inc
index d88ae06..ffedfec 100644
--- a/lib/builtins/fp_trunc_impl.inc
+++ b/lib/builtins/fp_trunc_impl.inc
@@ -1,9 +1,8 @@
 //= lib/fp_trunc_impl.inc - high precision -> low precision conversion *-*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/gcc_personality_v0.c b/lib/builtins/gcc_personality_v0.c
index 68581ef..7044594 100644
--- a/lib/builtins/gcc_personality_v0.c
+++ b/lib/builtins/gcc_personality_v0.c
@@ -1,9 +1,8 @@
 /* ===-- gcc_personality_v0.c - Implement __gcc_personality_v0 -------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/hexagon/common_entry_exit_abi1.S b/lib/builtins/hexagon/common_entry_exit_abi1.S
index d5479d2..1e8d9a1 100644
--- a/lib/builtins/hexagon/common_entry_exit_abi1.S
+++ b/lib/builtins/hexagon/common_entry_exit_abi1.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/common_entry_exit_abi2.S b/lib/builtins/hexagon/common_entry_exit_abi2.S
index 6f47034..323f899 100644
--- a/lib/builtins/hexagon/common_entry_exit_abi2.S
+++ b/lib/builtins/hexagon/common_entry_exit_abi2.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/common_entry_exit_legacy.S b/lib/builtins/hexagon/common_entry_exit_legacy.S
index 3258f15..8ee2751 100644
--- a/lib/builtins/hexagon/common_entry_exit_legacy.S
+++ b/lib/builtins/hexagon/common_entry_exit_legacy.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/dfaddsub.S b/lib/builtins/hexagon/dfaddsub.S
index 4173f86..b02f0d6 100644
--- a/lib/builtins/hexagon/dfaddsub.S
+++ b/lib/builtins/hexagon/dfaddsub.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/dfdiv.S b/lib/builtins/hexagon/dfdiv.S
index 0c5dbe2..0806512 100644
--- a/lib/builtins/hexagon/dfdiv.S
+++ b/lib/builtins/hexagon/dfdiv.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/dffma.S b/lib/builtins/hexagon/dffma.S
index 97b885a..35256c6 100644
--- a/lib/builtins/hexagon/dffma.S
+++ b/lib/builtins/hexagon/dffma.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/dfminmax.S b/lib/builtins/hexagon/dfminmax.S
index 4112291..7b5c380 100644
--- a/lib/builtins/hexagon/dfminmax.S
+++ b/lib/builtins/hexagon/dfminmax.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/dfmul.S b/lib/builtins/hexagon/dfmul.S
index fde6d77..3a33fc3 100644
--- a/lib/builtins/hexagon/dfmul.S
+++ b/lib/builtins/hexagon/dfmul.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/dfsqrt.S b/lib/builtins/hexagon/dfsqrt.S
index 027d9e1..6d90e8f 100644
--- a/lib/builtins/hexagon/dfsqrt.S
+++ b/lib/builtins/hexagon/dfsqrt.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/divdi3.S b/lib/builtins/hexagon/divdi3.S
index 49ee810..770601a 100644
--- a/lib/builtins/hexagon/divdi3.S
+++ b/lib/builtins/hexagon/divdi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/divsi3.S b/lib/builtins/hexagon/divsi3.S
index 8e159ba..5f40652 100644
--- a/lib/builtins/hexagon/divsi3.S
+++ b/lib/builtins/hexagon/divsi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/fabs_opt.S b/lib/builtins/hexagon/fabs_opt.S
index b09b007..6bf9b84 100644
--- a/lib/builtins/hexagon/fabs_opt.S
+++ b/lib/builtins/hexagon/fabs_opt.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/fastmath2_dlib_asm.S b/lib/builtins/hexagon/fastmath2_dlib_asm.S
index 9286df0..574a044 100644
--- a/lib/builtins/hexagon/fastmath2_dlib_asm.S
+++ b/lib/builtins/hexagon/fastmath2_dlib_asm.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 /* ==================================================================== */
diff --git a/lib/builtins/hexagon/fastmath2_ldlib_asm.S b/lib/builtins/hexagon/fastmath2_ldlib_asm.S
index 4192555..cf623f9 100644
--- a/lib/builtins/hexagon/fastmath2_ldlib_asm.S
+++ b/lib/builtins/hexagon/fastmath2_ldlib_asm.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 /* ==================================================================== *
diff --git a/lib/builtins/hexagon/fastmath_dlib_asm.S b/lib/builtins/hexagon/fastmath_dlib_asm.S
index 215936b..3e59526 100644
--- a/lib/builtins/hexagon/fastmath_dlib_asm.S
+++ b/lib/builtins/hexagon/fastmath_dlib_asm.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 /* ==================================================================== */
diff --git a/lib/builtins/hexagon/fma_opt.S b/lib/builtins/hexagon/fma_opt.S
index 12378f0..7f566ad 100644
--- a/lib/builtins/hexagon/fma_opt.S
+++ b/lib/builtins/hexagon/fma_opt.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/fmax_opt.S b/lib/builtins/hexagon/fmax_opt.S
index f3a218c..81d711d 100644
--- a/lib/builtins/hexagon/fmax_opt.S
+++ b/lib/builtins/hexagon/fmax_opt.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/fmin_opt.S b/lib/builtins/hexagon/fmin_opt.S
index ef9b0ff..d043f1d 100644
--- a/lib/builtins/hexagon/fmin_opt.S
+++ b/lib/builtins/hexagon/fmin_opt.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/memcpy_forward_vp4cp4n2.S b/lib/builtins/hexagon/memcpy_forward_vp4cp4n2.S
index fbe0908..10b81f6 100644
--- a/lib/builtins/hexagon/memcpy_forward_vp4cp4n2.S
+++ b/lib/builtins/hexagon/memcpy_forward_vp4cp4n2.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/hexagon/memcpy_likely_aligned.S b/lib/builtins/hexagon/memcpy_likely_aligned.S
index bbc85c2..492298f 100644
--- a/lib/builtins/hexagon/memcpy_likely_aligned.S
+++ b/lib/builtins/hexagon/memcpy_likely_aligned.S
@@ -1,9 +1,8 @@
 //===------------------------- memcopy routines ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/moddi3.S b/lib/builtins/hexagon/moddi3.S
index 12a0595..d4246b6 100644
--- a/lib/builtins/hexagon/moddi3.S
+++ b/lib/builtins/hexagon/moddi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/modsi3.S b/lib/builtins/hexagon/modsi3.S
index 5afda9e..4015d5e 100644
--- a/lib/builtins/hexagon/modsi3.S
+++ b/lib/builtins/hexagon/modsi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/sfdiv_opt.S b/lib/builtins/hexagon/sfdiv_opt.S
index 6bdd480..7c9ae14 100644
--- a/lib/builtins/hexagon/sfdiv_opt.S
+++ b/lib/builtins/hexagon/sfdiv_opt.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/sfsqrt_opt.S b/lib/builtins/hexagon/sfsqrt_opt.S
index 7f61900..532df9a 100644
--- a/lib/builtins/hexagon/sfsqrt_opt.S
+++ b/lib/builtins/hexagon/sfsqrt_opt.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/udivdi3.S b/lib/builtins/hexagon/udivdi3.S
index 1ca326b..23f931d 100644
--- a/lib/builtins/hexagon/udivdi3.S
+++ b/lib/builtins/hexagon/udivdi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/udivmoddi4.S b/lib/builtins/hexagon/udivmoddi4.S
index deb5aae..6dbfc59 100644
--- a/lib/builtins/hexagon/udivmoddi4.S
+++ b/lib/builtins/hexagon/udivmoddi4.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/udivmodsi4.S b/lib/builtins/hexagon/udivmodsi4.S
index 25bbe7c..9e23121 100644
--- a/lib/builtins/hexagon/udivmodsi4.S
+++ b/lib/builtins/hexagon/udivmodsi4.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/udivsi3.S b/lib/builtins/hexagon/udivsi3.S
index 54f0aa4..d68599a 100644
--- a/lib/builtins/hexagon/udivsi3.S
+++ b/lib/builtins/hexagon/udivsi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/umoddi3.S b/lib/builtins/hexagon/umoddi3.S
index f091521..646ca12 100644
--- a/lib/builtins/hexagon/umoddi3.S
+++ b/lib/builtins/hexagon/umoddi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/hexagon/umodsi3.S b/lib/builtins/hexagon/umodsi3.S
index a8270c2..a923944 100644
--- a/lib/builtins/hexagon/umodsi3.S
+++ b/lib/builtins/hexagon/umodsi3.S
@@ -1,9 +1,8 @@
 //===----------------------Hexagon builtin routine ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/i386/ashldi3.S b/lib/builtins/i386/ashldi3.S
index 6f05dcf..7ba9126 100644
--- a/lib/builtins/i386/ashldi3.S
+++ b/lib/builtins/i386/ashldi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/ashrdi3.S b/lib/builtins/i386/ashrdi3.S
index 206369f..3c4a423 100644
--- a/lib/builtins/i386/ashrdi3.S
+++ b/lib/builtins/i386/ashrdi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/chkstk.S b/lib/builtins/i386/chkstk.S
index b599748..f0bea21 100644
--- a/lib/builtins/i386/chkstk.S
+++ b/lib/builtins/i386/chkstk.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/chkstk2.S b/lib/builtins/i386/chkstk2.S
index 7d65bb0..5d6cbdf 100644
--- a/lib/builtins/i386/chkstk2.S
+++ b/lib/builtins/i386/chkstk2.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/divdi3.S b/lib/builtins/i386/divdi3.S
index 2fb4bdc..126b95c 100644
--- a/lib/builtins/i386/divdi3.S
+++ b/lib/builtins/i386/divdi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/floatdidf.S b/lib/builtins/i386/floatdidf.S
index d75dfe6..ab7422c 100644
--- a/lib/builtins/i386/floatdidf.S
+++ b/lib/builtins/i386/floatdidf.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/floatdisf.S b/lib/builtins/i386/floatdisf.S
index 0874eaa..d91f14e 100644
--- a/lib/builtins/i386/floatdisf.S
+++ b/lib/builtins/i386/floatdisf.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/floatdixf.S b/lib/builtins/i386/floatdixf.S
index 1044ef5..df70f5f 100644
--- a/lib/builtins/i386/floatdixf.S
+++ b/lib/builtins/i386/floatdixf.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/floatundidf.S b/lib/builtins/i386/floatundidf.S
index fe03234..8b1b666 100644
--- a/lib/builtins/i386/floatundidf.S
+++ b/lib/builtins/i386/floatundidf.S
@@ -1,9 +1,8 @@
 //===-- floatundidf.S - Implement __floatundidf for i386 ------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/i386/floatundisf.S b/lib/builtins/i386/floatundisf.S
index 16000b5..b9ad5fa 100644
--- a/lib/builtins/i386/floatundisf.S
+++ b/lib/builtins/i386/floatundisf.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/floatundixf.S b/lib/builtins/i386/floatundixf.S
index c935670..30b4d9f 100644
--- a/lib/builtins/i386/floatundixf.S
+++ b/lib/builtins/i386/floatundixf.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/lshrdi3.S b/lib/builtins/i386/lshrdi3.S
index 53e95cf..6041854 100644
--- a/lib/builtins/i386/lshrdi3.S
+++ b/lib/builtins/i386/lshrdi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/moddi3.S b/lib/builtins/i386/moddi3.S
index a5bf9ce..dd10b2b 100644
--- a/lib/builtins/i386/moddi3.S
+++ b/lib/builtins/i386/moddi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/muldi3.S b/lib/builtins/i386/muldi3.S
index 1239460..b8b5ade 100644
--- a/lib/builtins/i386/muldi3.S
+++ b/lib/builtins/i386/muldi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/udivdi3.S b/lib/builtins/i386/udivdi3.S
index 7276136..37841bf 100644
--- a/lib/builtins/i386/udivdi3.S
+++ b/lib/builtins/i386/udivdi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/i386/umoddi3.S b/lib/builtins/i386/umoddi3.S
index 763e821..0842d14 100644
--- a/lib/builtins/i386/umoddi3.S
+++ b/lib/builtins/i386/umoddi3.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/int_endianness.h b/lib/builtins/int_endianness.h
index e2586c5..cd8bd27 100644
--- a/lib/builtins/int_endianness.h
+++ b/lib/builtins/int_endianness.h
@@ -1,9 +1,8 @@
 /* ===-- int_endianness.h - configuration header for compiler-rt ------------===
  *
- *		       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/int_lib.h b/lib/builtins/int_lib.h
index fe8a3bd..0918b40 100644
--- a/lib/builtins/int_lib.h
+++ b/lib/builtins/int_lib.h
@@ -1,9 +1,8 @@
 /* ===-- int_lib.h - configuration header for compiler-rt  -----------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/int_math.h b/lib/builtins/int_math.h
index aa3d072..2962262 100644
--- a/lib/builtins/int_math.h
+++ b/lib/builtins/int_math.h
@@ -1,9 +1,8 @@
 /* ===-- int_math.h - internal math inlines ---------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===-----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/int_types.h b/lib/builtins/int_types.h
index 9f8da56..d36ef68 100644
--- a/lib/builtins/int_types.h
+++ b/lib/builtins/int_types.h
@@ -1,9 +1,8 @@
 /* ===-- int_lib.h - configuration header for compiler-rt  -----------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/int_util.c b/lib/builtins/int_util.c
index 752f201..2c5ecc7 100644
--- a/lib/builtins/int_util.c
+++ b/lib/builtins/int_util.c
@@ -1,9 +1,8 @@
 /* ===-- int_util.c - Implement internal utilities --------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/int_util.h b/lib/builtins/int_util.h
index c3c8738..8463930 100644
--- a/lib/builtins/int_util.h
+++ b/lib/builtins/int_util.h
@@ -1,9 +1,8 @@
 /* ===-- int_util.h - internal utility functions ----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===-----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/lshrdi3.c b/lib/builtins/lshrdi3.c
index 67b2a76..cdba610 100644
--- a/lib/builtins/lshrdi3.c
+++ b/lib/builtins/lshrdi3.c
@@ -1,9 +1,8 @@
 /* ===-- lshrdi3.c - Implement __lshrdi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/lshrti3.c b/lib/builtins/lshrti3.c
index e4170ff..facabd2 100644
--- a/lib/builtins/lshrti3.c
+++ b/lib/builtins/lshrti3.c
@@ -1,9 +1,8 @@
 /* ===-- lshrti3.c - Implement __lshrti3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mingw_fixfloat.c b/lib/builtins/mingw_fixfloat.c
index c462e0d..f2c9187 100644
--- a/lib/builtins/mingw_fixfloat.c
+++ b/lib/builtins/mingw_fixfloat.c
@@ -1,9 +1,8 @@
 /* ===-- mingw_fixfloat.c - Wrap int/float conversions for arm/windows -----===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/moddi3.c b/lib/builtins/moddi3.c
index a04279e..f804edf 100644
--- a/lib/builtins/moddi3.c
+++ b/lib/builtins/moddi3.c
@@ -1,9 +1,8 @@
 /*===-- moddi3.c - Implement __moddi3 -------------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/modsi3.c b/lib/builtins/modsi3.c
index 86c73ce..16f3013 100644
--- a/lib/builtins/modsi3.c
+++ b/lib/builtins/modsi3.c
@@ -1,9 +1,8 @@
 /* ===-- modsi3.c - Implement __modsi3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/modti3.c b/lib/builtins/modti3.c
index d505c07..455d3c5 100644
--- a/lib/builtins/modti3.c
+++ b/lib/builtins/modti3.c
@@ -1,9 +1,8 @@
 /* ===-- modti3.c - Implement __modti3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/muldc3.c b/lib/builtins/muldc3.c
index 16d8e98..48bafca 100644
--- a/lib/builtins/muldc3.c
+++ b/lib/builtins/muldc3.c
@@ -1,9 +1,8 @@
 /* ===-- muldc3.c - Implement __muldc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/muldf3.c b/lib/builtins/muldf3.c
index 1bb103e..0c4f189 100644
--- a/lib/builtins/muldf3.c
+++ b/lib/builtins/muldf3.c
@@ -1,9 +1,8 @@
 //===-- lib/muldf3.c - Double-precision multiplication ------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/muldi3.c b/lib/builtins/muldi3.c
index a187315..9a80b12 100644
--- a/lib/builtins/muldi3.c
+++ b/lib/builtins/muldi3.c
@@ -1,9 +1,8 @@
 /* ===-- muldi3.c - Implement __muldi3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mulodi4.c b/lib/builtins/mulodi4.c
index d2fd7db..64d1a30 100644
--- a/lib/builtins/mulodi4.c
+++ b/lib/builtins/mulodi4.c
@@ -1,9 +1,8 @@
 /*===-- mulodi4.c - Implement __mulodi4 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mulosi4.c b/lib/builtins/mulosi4.c
index 4225280..1732da2 100644
--- a/lib/builtins/mulosi4.c
+++ b/lib/builtins/mulosi4.c
@@ -1,9 +1,8 @@
 /*===-- mulosi4.c - Implement __mulosi4 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/muloti4.c b/lib/builtins/muloti4.c
index 16b2189..a737082 100644
--- a/lib/builtins/muloti4.c
+++ b/lib/builtins/muloti4.c
@@ -1,9 +1,8 @@
 /*===-- muloti4.c - Implement __muloti4 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mulsc3.c b/lib/builtins/mulsc3.c
index c89cfd2..bf3ea1d 100644
--- a/lib/builtins/mulsc3.c
+++ b/lib/builtins/mulsc3.c
@@ -1,9 +1,8 @@
 /* ===-- mulsc3.c - Implement __mulsc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mulsf3.c b/lib/builtins/mulsf3.c
index 1e2cf3e..d253515 100644
--- a/lib/builtins/mulsf3.c
+++ b/lib/builtins/mulsf3.c
@@ -1,9 +1,8 @@
 //===-- lib/mulsf3.c - Single-precision multiplication ------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/multc3.c b/lib/builtins/multc3.c
index 0518bc2..eeac53a 100644
--- a/lib/builtins/multc3.c
+++ b/lib/builtins/multc3.c
@@ -1,9 +1,8 @@
 /* ===-- multc3.c - Implement __multc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/multf3.c b/lib/builtins/multf3.c
index 0b91592..d3885b7 100644
--- a/lib/builtins/multf3.c
+++ b/lib/builtins/multf3.c
@@ -1,9 +1,8 @@
 //===-- lib/multf3.c - Quad-precision multiplication --------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/multi3.c b/lib/builtins/multi3.c
index e0d52d4..96c9cf6 100644
--- a/lib/builtins/multi3.c
+++ b/lib/builtins/multi3.c
@@ -1,9 +1,8 @@
 /* ===-- multi3.c - Implement __multi3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
 
diff --git a/lib/builtins/mulvdi3.c b/lib/builtins/mulvdi3.c
index e63249e..3cb4be6 100644
--- a/lib/builtins/mulvdi3.c
+++ b/lib/builtins/mulvdi3.c
@@ -1,9 +1,8 @@
 /*===-- mulvdi3.c - Implement __mulvdi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mulvsi3.c b/lib/builtins/mulvsi3.c
index 74ea4f2..f779ff3 100644
--- a/lib/builtins/mulvsi3.c
+++ b/lib/builtins/mulvsi3.c
@@ -1,9 +1,8 @@
 /* ===-- mulvsi3.c - Implement __mulvsi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mulvti3.c b/lib/builtins/mulvti3.c
index f4c7d16..3972d17 100644
--- a/lib/builtins/mulvti3.c
+++ b/lib/builtins/mulvti3.c
@@ -1,9 +1,8 @@
 /* ===-- mulvti3.c - Implement __mulvti3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/mulxc3.c b/lib/builtins/mulxc3.c
index ba32216..2ed9bd5 100644
--- a/lib/builtins/mulxc3.c
+++ b/lib/builtins/mulxc3.c
@@ -1,9 +1,8 @@
 /* ===-- mulxc3.c - Implement __mulxc3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/negdf2.c b/lib/builtins/negdf2.c
index f0bfaad..2f2586e 100644
--- a/lib/builtins/negdf2.c
+++ b/lib/builtins/negdf2.c
@@ -1,9 +1,8 @@
 //===-- lib/negdf2.c - double-precision negation ------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/negdi2.c b/lib/builtins/negdi2.c
index 3d49ba2..6ffe664 100644
--- a/lib/builtins/negdi2.c
+++ b/lib/builtins/negdi2.c
@@ -1,9 +1,8 @@
 /* ===-- negdi2.c - Implement __negdi2 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/negsf2.c b/lib/builtins/negsf2.c
index 05c97d4..b8852d5 100644
--- a/lib/builtins/negsf2.c
+++ b/lib/builtins/negsf2.c
@@ -1,9 +1,8 @@
 //===-- lib/negsf2.c - single-precision negation ------------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/negti2.c b/lib/builtins/negti2.c
index 9b00b30..b39aa32 100644
--- a/lib/builtins/negti2.c
+++ b/lib/builtins/negti2.c
@@ -1,9 +1,8 @@
 /* ===-- negti2.c - Implement __negti2 -------------------------------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/negvdi2.c b/lib/builtins/negvdi2.c
index e336ecf..aefb10e 100644
--- a/lib/builtins/negvdi2.c
+++ b/lib/builtins/negvdi2.c
@@ -1,9 +1,8 @@
 /* ===-- negvdi2.c - Implement __negvdi2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/negvsi2.c b/lib/builtins/negvsi2.c
index b9e93fe..6931a6f 100644
--- a/lib/builtins/negvsi2.c
+++ b/lib/builtins/negvsi2.c
@@ -1,9 +1,8 @@
 /* ===-- negvsi2.c - Implement __negvsi2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/negvti2.c b/lib/builtins/negvti2.c
index 85f9f7d..4fee789 100644
--- a/lib/builtins/negvti2.c
+++ b/lib/builtins/negvti2.c
@@ -1,9 +1,8 @@
 /*===-- negvti2.c - Implement __negvti2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  *===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/os_version_check.c b/lib/builtins/os_version_check.c
index e0d40ed..7a71aa1 100644
--- a/lib/builtins/os_version_check.c
+++ b/lib/builtins/os_version_check.c
@@ -1,9 +1,8 @@
 /* ===-- os_version_check.c - OS version checking  -------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/paritydi2.c b/lib/builtins/paritydi2.c
index 8ea5ab4..72c5223 100644
--- a/lib/builtins/paritydi2.c
+++ b/lib/builtins/paritydi2.c
@@ -1,9 +1,8 @@
 /* ===-- paritydi2.c - Implement __paritydi2 -------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/paritysi2.c b/lib/builtins/paritysi2.c
index 5999846..aff5326 100644
--- a/lib/builtins/paritysi2.c
+++ b/lib/builtins/paritysi2.c
@@ -1,9 +1,8 @@
 /* ===-- paritysi2.c - Implement __paritysi2 -------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/parityti2.c b/lib/builtins/parityti2.c
index 5a4fe49..62c7724 100644
--- a/lib/builtins/parityti2.c
+++ b/lib/builtins/parityti2.c
@@ -1,9 +1,8 @@
 /* ===-- parityti2.c - Implement __parityti2 -------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/popcountdi2.c b/lib/builtins/popcountdi2.c
index 5e8a62f..09eeb9e 100644
--- a/lib/builtins/popcountdi2.c
+++ b/lib/builtins/popcountdi2.c
@@ -1,9 +1,8 @@
 /* ===-- popcountdi2.c - Implement __popcountdi2 ----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/popcountsi2.c b/lib/builtins/popcountsi2.c
index 44544ff..4162ba7 100644
--- a/lib/builtins/popcountsi2.c
+++ b/lib/builtins/popcountsi2.c
@@ -1,9 +1,8 @@
 /* ===-- popcountsi2.c - Implement __popcountsi2 ---------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/popcountti2.c b/lib/builtins/popcountti2.c
index 7451bbb..62309f1 100644
--- a/lib/builtins/popcountti2.c
+++ b/lib/builtins/popcountti2.c
@@ -1,9 +1,8 @@
 /* ===-- popcountti2.c - Implement __popcountti2 ----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/powidf2.c b/lib/builtins/powidf2.c
index ac13b17..6d14c4d 100644
--- a/lib/builtins/powidf2.c
+++ b/lib/builtins/powidf2.c
@@ -1,9 +1,8 @@
 /* ===-- powidf2.cpp - Implement __powidf2 ---------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/powisf2.c b/lib/builtins/powisf2.c
index 0c400ec..7ddc1da 100644
--- a/lib/builtins/powisf2.c
+++ b/lib/builtins/powisf2.c
@@ -1,9 +1,8 @@
 /*===-- powisf2.cpp - Implement __powisf2 ---------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/powitf2.c b/lib/builtins/powitf2.c
index 172f29f..94a874b 100644
--- a/lib/builtins/powitf2.c
+++ b/lib/builtins/powitf2.c
@@ -1,9 +1,8 @@
 /* ===-- powitf2.cpp - Implement __powitf2 ---------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/powixf2.c b/lib/builtins/powixf2.c
index 0fd96e5..a0ab6d2 100644
--- a/lib/builtins/powixf2.c
+++ b/lib/builtins/powixf2.c
@@ -1,9 +1,8 @@
 /* ===-- powixf2.cpp - Implement __powixf2 ---------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ppc/fixunstfti.c b/lib/builtins/ppc/fixunstfti.c
index fa21084..a619923 100644
--- a/lib/builtins/ppc/fixunstfti.c
+++ b/lib/builtins/ppc/fixunstfti.c
@@ -1,9 +1,8 @@
 //===-- lib/builtins/ppc/fixunstfti.c - Convert long double->int128 *-C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/ppc/floattitf.c b/lib/builtins/ppc/floattitf.c
index b8e297b..b722ac9 100644
--- a/lib/builtins/ppc/floattitf.c
+++ b/lib/builtins/ppc/floattitf.c
@@ -1,9 +1,8 @@
 //===-- lib/builtins/ppc/floattitf.c - Convert int128->long double -*-C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/ppc/restFP.S b/lib/builtins/ppc/restFP.S
index 507e756..02317bd 100644
--- a/lib/builtins/ppc/restFP.S
+++ b/lib/builtins/ppc/restFP.S
@@ -1,9 +1,8 @@
 //===-- restFP.S - Implement restFP ---------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/ppc/saveFP.S b/lib/builtins/ppc/saveFP.S
index 20b06ff..1ef5532 100644
--- a/lib/builtins/ppc/saveFP.S
+++ b/lib/builtins/ppc/saveFP.S
@@ -1,9 +1,8 @@
 //===-- saveFP.S - Implement saveFP ---------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/riscv/mulsi3.S b/lib/builtins/riscv/mulsi3.S
index a58d237..5464919 100644
--- a/lib/builtins/riscv/mulsi3.S
+++ b/lib/builtins/riscv/mulsi3.S
@@ -1,9 +1,8 @@
 //===--- mulsi3.S - Integer multiplication routines routines ---===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/subdf3.c b/lib/builtins/subdf3.c
index a892fa6..013c60e 100644
--- a/lib/builtins/subdf3.c
+++ b/lib/builtins/subdf3.c
@@ -1,9 +1,8 @@
 //===-- lib/adddf3.c - Double-precision subtraction ---------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/subsf3.c b/lib/builtins/subsf3.c
index 4b27861..90b0e11 100644
--- a/lib/builtins/subsf3.c
+++ b/lib/builtins/subsf3.c
@@ -1,9 +1,8 @@
 //===-- lib/subsf3.c - Single-precision subtraction ---------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/subtf3.c b/lib/builtins/subtf3.c
index 609b816..871cf86 100644
--- a/lib/builtins/subtf3.c
+++ b/lib/builtins/subtf3.c
@@ -1,9 +1,8 @@
 //===-- lib/subtf3.c - Quad-precision subtraction -----------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/subvdi3.c b/lib/builtins/subvdi3.c
index 71fc70f..3450875 100644
--- a/lib/builtins/subvdi3.c
+++ b/lib/builtins/subvdi3.c
@@ -1,9 +1,8 @@
 /* ===-- subvdi3.c - Implement __subvdi3 -----------------------------------===
  *
- *                The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/subvsi3.c b/lib/builtins/subvsi3.c
index e6c0fb6..6f75663 100644
--- a/lib/builtins/subvsi3.c
+++ b/lib/builtins/subvsi3.c
@@ -1,9 +1,8 @@
 /* ===-- subvsi3.c - Implement __subvsi3 -----------------------------------===
  *
- *                The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/subvti3.c b/lib/builtins/subvti3.c
index a6804d2..661364d 100644
--- a/lib/builtins/subvti3.c
+++ b/lib/builtins/subvti3.c
@@ -1,9 +1,8 @@
 /* ===-- subvti3.c - Implement __subvti3 -----------------------------------===
  *
- *      	       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/trampoline_setup.c b/lib/builtins/trampoline_setup.c
index 25b627a..99a1033 100644
--- a/lib/builtins/trampoline_setup.c
+++ b/lib/builtins/trampoline_setup.c
@@ -1,9 +1,8 @@
 /* ===----- trampoline_setup.c - Implement __trampoline_setup -------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/lib/builtins/truncdfhf2.c b/lib/builtins/truncdfhf2.c
index 8354a41..e56adc6 100644
--- a/lib/builtins/truncdfhf2.c
+++ b/lib/builtins/truncdfhf2.c
@@ -1,9 +1,8 @@
 //===-- lib/truncdfhf2.c - double -> half conversion --------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/truncdfsf2.c b/lib/builtins/truncdfsf2.c
index 195d3e0..986a63f 100644
--- a/lib/builtins/truncdfsf2.c
+++ b/lib/builtins/truncdfsf2.c
@@ -1,9 +1,8 @@
 //===-- lib/truncdfsf2.c - double -> single conversion ------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/truncsfhf2.c b/lib/builtins/truncsfhf2.c
index 9c84ab4..e1f3dfa 100644
--- a/lib/builtins/truncsfhf2.c
+++ b/lib/builtins/truncsfhf2.c
@@ -1,9 +1,8 @@
 //===-- lib/truncsfhf2.c - single -> half conversion --------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/trunctfdf2.c b/lib/builtins/trunctfdf2.c
index 741a71b..c1c7553 100644
--- a/lib/builtins/trunctfdf2.c
+++ b/lib/builtins/trunctfdf2.c
@@ -1,9 +1,8 @@
 //===-- lib/truncdfsf2.c - quad -> double conversion --------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/trunctfsf2.c b/lib/builtins/trunctfsf2.c
index de96c1d..15a5343 100644
--- a/lib/builtins/trunctfsf2.c
+++ b/lib/builtins/trunctfsf2.c
@@ -1,9 +1,8 @@
 //===-- lib/trunctfsf2.c - quad -> single conversion --------------*- C -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/lib/builtins/ucmpdi2.c b/lib/builtins/ucmpdi2.c
index 40af236..2e75599 100644
--- a/lib/builtins/ucmpdi2.c
+++ b/lib/builtins/ucmpdi2.c
@@ -1,9 +1,8 @@
 /* ===-- ucmpdi2.c - Implement __ucmpdi2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/ucmpti2.c b/lib/builtins/ucmpti2.c
index bda8083..dbbbe43 100644
--- a/lib/builtins/ucmpti2.c
+++ b/lib/builtins/ucmpti2.c
@@ -1,9 +1,8 @@
 /* ===-- ucmpti2.c - Implement __ucmpti2 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/udivdi3.c b/lib/builtins/udivdi3.c
index dc68e15..6eca737 100644
--- a/lib/builtins/udivdi3.c
+++ b/lib/builtins/udivdi3.c
@@ -1,9 +1,8 @@
 /* ===-- udivdi3.c - Implement __udivdi3 -----------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/udivmoddi4.c b/lib/builtins/udivmoddi4.c
index 0c8b4ff..ee976c8 100644
--- a/lib/builtins/udivmoddi4.c
+++ b/lib/builtins/udivmoddi4.c
@@ -1,9 +1,8 @@
 /* ===-- udivmoddi4.c - Implement __udivmoddi4 -----------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/udivmodsi4.c b/lib/builtins/udivmodsi4.c
index 789c4b5..89199d9 100644
--- a/lib/builtins/udivmodsi4.c
+++ b/lib/builtins/udivmodsi4.c
@@ -1,9 +1,8 @@
 /*===-- udivmodsi4.c - Implement __udivmodsi4 ------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/udivmodti4.c b/lib/builtins/udivmodti4.c
index 8031688..a8edc55 100644
--- a/lib/builtins/udivmodti4.c
+++ b/lib/builtins/udivmodti4.c
@@ -1,9 +1,8 @@
 /* ===-- udivmodti4.c - Implement __udivmodti4 -----------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/udivsi3.c b/lib/builtins/udivsi3.c
index bb720f8..4115a15 100644
--- a/lib/builtins/udivsi3.c
+++ b/lib/builtins/udivsi3.c
@@ -1,9 +1,8 @@
 /* ===-- udivsi3.c - Implement __udivsi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/udivti3.c b/lib/builtins/udivti3.c
index ec94673..2f926a8 100644
--- a/lib/builtins/udivti3.c
+++ b/lib/builtins/udivti3.c
@@ -1,9 +1,8 @@
 /* ===-- udivti3.c - Implement __udivti3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/umoddi3.c b/lib/builtins/umoddi3.c
index d513f08..4983015 100644
--- a/lib/builtins/umoddi3.c
+++ b/lib/builtins/umoddi3.c
@@ -1,9 +1,8 @@
 /* ===-- umoddi3.c - Implement __umoddi3 -----------------------------------===
  *
- *                    The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/umodsi3.c b/lib/builtins/umodsi3.c
index d5fda4a..0b71bd6 100644
--- a/lib/builtins/umodsi3.c
+++ b/lib/builtins/umodsi3.c
@@ -1,9 +1,8 @@
 /* ===-- umodsi3.c - Implement __umodsi3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/umodti3.c b/lib/builtins/umodti3.c
index 6d1ca7a..4d132aa 100644
--- a/lib/builtins/umodti3.c
+++ b/lib/builtins/umodti3.c
@@ -1,9 +1,8 @@
 /* ===-- umodti3.c - Implement __umodti3 -----------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/lib/builtins/unwind-ehabi-helpers.h b/lib/builtins/unwind-ehabi-helpers.h
index ccb0765..bdae409 100644
--- a/lib/builtins/unwind-ehabi-helpers.h
+++ b/lib/builtins/unwind-ehabi-helpers.h
@@ -1,9 +1,8 @@
 /* ===-- arm-ehabi-helpers.h - Supplementary ARM EHABI declarations --------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===--------------------------------------------------------------------=== */
 
diff --git a/lib/builtins/x86_64/chkstk.S b/lib/builtins/x86_64/chkstk.S
index 4149ac6..ad7953a 100644
--- a/lib/builtins/x86_64/chkstk.S
+++ b/lib/builtins/x86_64/chkstk.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/x86_64/chkstk2.S b/lib/builtins/x86_64/chkstk2.S
index ac1eb92..33d10d5 100644
--- a/lib/builtins/x86_64/chkstk2.S
+++ b/lib/builtins/x86_64/chkstk2.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/x86_64/floatundidf.S b/lib/builtins/x86_64/floatundidf.S
index 094a68d..7f6ef3b 100644
--- a/lib/builtins/x86_64/floatundidf.S
+++ b/lib/builtins/x86_64/floatundidf.S
@@ -1,9 +1,8 @@
 //===-- floatundidf.S - Implement __floatundidf for x86_64 ----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/lib/builtins/x86_64/floatundisf.S b/lib/builtins/x86_64/floatundisf.S
index 7c9f75e..252e30f 100644
--- a/lib/builtins/x86_64/floatundisf.S
+++ b/lib/builtins/x86_64/floatundisf.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/builtins/x86_64/floatundixf.S b/lib/builtins/x86_64/floatundixf.S
index 28a096b..a0f0404 100644
--- a/lib/builtins/x86_64/floatundixf.S
+++ b/lib/builtins/x86_64/floatundixf.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 #include "../assembly.h"
 
diff --git a/lib/sanitizer_common/sanitizer_linux_mips64.S b/lib/sanitizer_common/sanitizer_linux_mips64.S
index 8729642..a63b7d1 100644
--- a/lib/sanitizer_common/sanitizer_linux_mips64.S
+++ b/lib/sanitizer_common/sanitizer_linux_mips64.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 // Avoid being marked as needing an executable stack:
 #if defined(__linux__) && defined(__ELF__)
diff --git a/lib/sanitizer_common/sanitizer_linux_x86_64.S b/lib/sanitizer_common/sanitizer_linux_x86_64.S
index 8ff9095..2a4f2e4 100644
--- a/lib/sanitizer_common/sanitizer_linux_x86_64.S
+++ b/lib/sanitizer_common/sanitizer_linux_x86_64.S
@@ -1,5 +1,6 @@
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 // Avoid being marked as needing an executable stack:
 #if defined(__linux__) && defined(__ELF__)
diff --git a/test/builtins/Unit/absvdi2_test.c b/test/builtins/Unit/absvdi2_test.c
index dd9dfd1..00db5cc 100644
--- a/test/builtins/Unit/absvdi2_test.c
+++ b/test/builtins/Unit/absvdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- absvdi2_test.c - Test __absvdi2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/absvsi2_test.c b/test/builtins/Unit/absvsi2_test.c
index bae306b..332395b 100644
--- a/test/builtins/Unit/absvsi2_test.c
+++ b/test/builtins/Unit/absvsi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/absvti2_test.c b/test/builtins/Unit/absvti2_test.c
index 3c2ded7..60d6c34 100644
--- a/test/builtins/Unit/absvti2_test.c
+++ b/test/builtins/Unit/absvti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- absvti2_test.c - Test __absvti2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/adddf3vfp_test.c b/test/builtins/Unit/adddf3vfp_test.c
index e0da08b..f264232 100644
--- a/test/builtins/Unit/adddf3vfp_test.c
+++ b/test/builtins/Unit/adddf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- adddf3vfp_test.c - Test __adddf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/addsf3vfp_test.c b/test/builtins/Unit/addsf3vfp_test.c
index ed18de3..8a742e6 100644
--- a/test/builtins/Unit/addsf3vfp_test.c
+++ b/test/builtins/Unit/addsf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- addsf3vfp_test.c - Test __addsf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/addtf3_test.c b/test/builtins/Unit/addtf3_test.c
index 57a4729..8f00f6d 100644
--- a/test/builtins/Unit/addtf3_test.c
+++ b/test/builtins/Unit/addtf3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- addtf3_test.c - Test __addtf3 ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/addvdi3_test.c b/test/builtins/Unit/addvdi3_test.c
index 99e7040..e30993e 100644
--- a/test/builtins/Unit/addvdi3_test.c
+++ b/test/builtins/Unit/addvdi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- addvdi3_test.c - Test __addvdi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/addvsi3_test.c b/test/builtins/Unit/addvsi3_test.c
index 11fdbc3..03ced89 100644
--- a/test/builtins/Unit/addvsi3_test.c
+++ b/test/builtins/Unit/addvsi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- addvsi3_test.c - Test __addvsi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/addvti3_test.c b/test/builtins/Unit/addvti3_test.c
index 23e52d3..289ddc3 100644
--- a/test/builtins/Unit/addvti3_test.c
+++ b/test/builtins/Unit/addvti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- addvti3_test.c - Test __addvti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_cdcmpeq_test.c b/test/builtins/Unit/arm/aeabi_cdcmpeq_test.c
index 0d9e006..bdd357c 100644
--- a/test/builtins/Unit/arm/aeabi_cdcmpeq_test.c
+++ b/test/builtins/Unit/arm/aeabi_cdcmpeq_test.c
@@ -3,10 +3,9 @@
 // RUN: %clang_builtins %s %t.aspr.o %librt -o %t && %run %t
 //===-- aeabi_cdcmpeq.c - Test __aeabi_cdcmpeq ----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_cdcmple_test.c b/test/builtins/Unit/arm/aeabi_cdcmple_test.c
index e499bf8..1bfbb4e 100644
--- a/test/builtins/Unit/arm/aeabi_cdcmple_test.c
+++ b/test/builtins/Unit/arm/aeabi_cdcmple_test.c
@@ -4,10 +4,9 @@
 
 //===-- aeabi_cdcmple.c - Test __aeabi_cdcmple and __aeabi_cdrcmple -------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_cfcmpeq_test.c b/test/builtins/Unit/arm/aeabi_cfcmpeq_test.c
index 72a556c..9a98179 100644
--- a/test/builtins/Unit/arm/aeabi_cfcmpeq_test.c
+++ b/test/builtins/Unit/arm/aeabi_cfcmpeq_test.c
@@ -3,10 +3,9 @@
 // RUN: %clang_builtins %s  %t.aspr.o %librt -o %t && %run %t
 //===-- aeabi_cfcmpeq.c - Test __aeabi_cfcmpeq ----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_cfcmple_test.c b/test/builtins/Unit/arm/aeabi_cfcmple_test.c
index a09aead..7d3ff78 100644
--- a/test/builtins/Unit/arm/aeabi_cfcmple_test.c
+++ b/test/builtins/Unit/arm/aeabi_cfcmple_test.c
@@ -4,10 +4,9 @@
 
 //===-- aeabi_cfcmple.c - Test __aeabi_cfcmple and __aeabi_cfrcmple -------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_drsub_test.c b/test/builtins/Unit/arm/aeabi_drsub_test.c
index 8bd04a9..2c66891 100644
--- a/test/builtins/Unit/arm/aeabi_drsub_test.c
+++ b/test/builtins/Unit/arm/aeabi_drsub_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_drsub.c - Test __aeabi_drsub --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_frsub_test.c b/test/builtins/Unit/arm/aeabi_frsub_test.c
index 3d30161..2fadfb2 100644
--- a/test/builtins/Unit/arm/aeabi_frsub_test.c
+++ b/test/builtins/Unit/arm/aeabi_frsub_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_frsub.c - Test __aeabi_frsub --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_idivmod_test.c b/test/builtins/Unit/arm/aeabi_idivmod_test.c
index ac18046..cec9468 100644
--- a/test/builtins/Unit/arm/aeabi_idivmod_test.c
+++ b/test/builtins/Unit/arm/aeabi_idivmod_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_idivmod_test.c - Test __aeabi_idivmod -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_uidivmod_test.c b/test/builtins/Unit/arm/aeabi_uidivmod_test.c
index 9ac51da..e29cd5a 100644
--- a/test/builtins/Unit/arm/aeabi_uidivmod_test.c
+++ b/test/builtins/Unit/arm/aeabi_uidivmod_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_uidivmod_test.c - Test __aeabi_uidivmod ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/aeabi_uldivmod_test.c b/test/builtins/Unit/arm/aeabi_uldivmod_test.c
index a40f006..465d3bf 100644
--- a/test/builtins/Unit/arm/aeabi_uldivmod_test.c
+++ b/test/builtins/Unit/arm/aeabi_uldivmod_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- aeabi_uldivmod_test.c - Test aeabi_uldivmod -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/call_apsr.S b/test/builtins/Unit/arm/call_apsr.S
index 2656f8d..86f6c7c 100644
--- a/test/builtins/Unit/arm/call_apsr.S
+++ b/test/builtins/Unit/arm/call_apsr.S
@@ -1,9 +1,8 @@
 //===-- call_apsr.S - Helpers for ARM EABI floating point tests -----------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/arm/call_apsr.h b/test/builtins/Unit/arm/call_apsr.h
index 5443841..d4fcf5c 100644
--- a/test/builtins/Unit/arm/call_apsr.h
+++ b/test/builtins/Unit/arm/call_apsr.h
@@ -1,9 +1,8 @@
 //===-- call_apsr.h - Helpers for ARM EABI floating point tests -----------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ashldi3_test.c b/test/builtins/Unit/ashldi3_test.c
index f0984e0..671dcad 100644
--- a/test/builtins/Unit/ashldi3_test.c
+++ b/test/builtins/Unit/ashldi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ashldi3_test.c - Test __ashldi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ashlti3_test.c b/test/builtins/Unit/ashlti3_test.c
index 2dcd449..1258631 100644
--- a/test/builtins/Unit/ashlti3_test.c
+++ b/test/builtins/Unit/ashlti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- ashlti3_test.c - Test __ashlti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ashrdi3_test.c b/test/builtins/Unit/ashrdi3_test.c
index a987c95..4566600 100644
--- a/test/builtins/Unit/ashrdi3_test.c
+++ b/test/builtins/Unit/ashrdi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ashrdi3_test.c - Test __ashrdi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ashrti3_test.c b/test/builtins/Unit/ashrti3_test.c
index 69d0715..530cff5 100644
--- a/test/builtins/Unit/ashrti3_test.c
+++ b/test/builtins/Unit/ashrti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- ashrti3_test.c - Test __ashrti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/bswapdi2_test.c b/test/builtins/Unit/bswapdi2_test.c
index 57ee38b..a6b0777 100644
--- a/test/builtins/Unit/bswapdi2_test.c
+++ b/test/builtins/Unit/bswapdi2_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- bswapdi2_test.c - Test __bswapdi2 ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/bswapsi2_test.c b/test/builtins/Unit/bswapsi2_test.c
index 899c251..d2f03cb 100644
--- a/test/builtins/Unit/bswapsi2_test.c
+++ b/test/builtins/Unit/bswapsi2_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- bswapsi2_test.c - Test __bswapsi2 ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/clear_cache_test.c b/test/builtins/Unit/clear_cache_test.c
index e50e66f..e85cc30 100644
--- a/test/builtins/Unit/clear_cache_test.c
+++ b/test/builtins/Unit/clear_cache_test.c
@@ -3,10 +3,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- clear_cache_test.c - Test clear_cache -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/test/builtins/Unit/clzdi2_test.c b/test/builtins/Unit/clzdi2_test.c
index a8c0e1b..1ef1ff3 100644
--- a/test/builtins/Unit/clzdi2_test.c
+++ b/test/builtins/Unit/clzdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- clzdi2_test.c - Test __clzdi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/clzsi2_test.c b/test/builtins/Unit/clzsi2_test.c
index f86e888..e2e1e1b 100644
--- a/test/builtins/Unit/clzsi2_test.c
+++ b/test/builtins/Unit/clzsi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- clzsi2_test.c - Test __clzsi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/clzti2_test.c b/test/builtins/Unit/clzti2_test.c
index 082583c..15b8713 100644
--- a/test/builtins/Unit/clzti2_test.c
+++ b/test/builtins/Unit/clzti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- clzti2_test.c - Test __clzti2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/cmpdi2_test.c b/test/builtins/Unit/cmpdi2_test.c
index 1420dc7..4bfcac0 100644
--- a/test/builtins/Unit/cmpdi2_test.c
+++ b/test/builtins/Unit/cmpdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- cmpdi2_test.c - Test __cmpdi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/cmpti2_test.c b/test/builtins/Unit/cmpti2_test.c
index e74f379..03183c8 100644
--- a/test/builtins/Unit/cmpti2_test.c
+++ b/test/builtins/Unit/cmpti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- cmpti2_test.c - Test __cmpti2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/comparedf2_test.c b/test/builtins/Unit/comparedf2_test.c
index 8446901..9b1cac2 100644
--- a/test/builtins/Unit/comparedf2_test.c
+++ b/test/builtins/Unit/comparedf2_test.c
@@ -2,10 +2,9 @@
 
 //===-- cmpdf2_test.c - Test __cmpdf2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/comparesf2_test.c b/test/builtins/Unit/comparesf2_test.c
index 1b5902f..cabd202 100644
--- a/test/builtins/Unit/comparesf2_test.c
+++ b/test/builtins/Unit/comparesf2_test.c
@@ -2,10 +2,9 @@
 
 //===-- cmpsf2_test.c - Test __cmpsf2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/compiler_rt_logb_test.c b/test/builtins/Unit/compiler_rt_logb_test.c
index 7967659..cf2a04e 100644
--- a/test/builtins/Unit/compiler_rt_logb_test.c
+++ b/test/builtins/Unit/compiler_rt_logb_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- compiler_rt_logb_test.c - Test __compiler_rt_logb -----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/compiler_rt_logbf_test.c b/test/builtins/Unit/compiler_rt_logbf_test.c
index 5a4979a..fa3b899 100644
--- a/test/builtins/Unit/compiler_rt_logbf_test.c
+++ b/test/builtins/Unit/compiler_rt_logbf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- compiler_rt_logbf_test.c - Test __compiler_rt_logbf ---------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/compiler_rt_logbl_test.c b/test/builtins/Unit/compiler_rt_logbl_test.c
index 2617748..52a03e1 100644
--- a/test/builtins/Unit/compiler_rt_logbl_test.c
+++ b/test/builtins/Unit/compiler_rt_logbl_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- compiler_rt_logbl_test.c - Test __compiler_rt_logbl ---------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/cpu_model_test.c b/test/builtins/Unit/cpu_model_test.c
index 6b47d14..dee031e 100644
--- a/test/builtins/Unit/cpu_model_test.c
+++ b/test/builtins/Unit/cpu_model_test.c
@@ -4,10 +4,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- cpu_model_test.c - Test __builtin_cpu_supports --------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ctzdi2_test.c b/test/builtins/Unit/ctzdi2_test.c
index 0515e20..269c435 100644
--- a/test/builtins/Unit/ctzdi2_test.c
+++ b/test/builtins/Unit/ctzdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ctzdi2_test.c - Test __ctzdi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ctzsi2_test.c b/test/builtins/Unit/ctzsi2_test.c
index bf8982b..15ca4fd 100644
--- a/test/builtins/Unit/ctzsi2_test.c
+++ b/test/builtins/Unit/ctzsi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ctzsi2_test.c - Test __ctzsi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ctzti2_test.c b/test/builtins/Unit/ctzti2_test.c
index 2ddcf0d..a321a0a 100644
--- a/test/builtins/Unit/ctzti2_test.c
+++ b/test/builtins/Unit/ctzti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- ctzti2_test.c - Test __ctzti2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divdc3_test.c b/test/builtins/Unit/divdc3_test.c
index 042fd23..6a59691 100644
--- a/test/builtins/Unit/divdc3_test.c
+++ b/test/builtins/Unit/divdc3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divdc3_test.c - Test __divdc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divdf3vfp_test.c b/test/builtins/Unit/divdf3vfp_test.c
index 4f18409..76d7cfa 100644
--- a/test/builtins/Unit/divdf3vfp_test.c
+++ b/test/builtins/Unit/divdf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divdf3vfp_test.c - Test __divdf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divdi3_test.c b/test/builtins/Unit/divdi3_test.c
index 4c8c922..41ee1cf 100644
--- a/test/builtins/Unit/divdi3_test.c
+++ b/test/builtins/Unit/divdi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divdi3_test.c - Test __divdi3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divmodsi4_test.c b/test/builtins/Unit/divmodsi4_test.c
index e766aae..4630ad8 100644
--- a/test/builtins/Unit/divmodsi4_test.c
+++ b/test/builtins/Unit/divmodsi4_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divmodsi4_test.c - Test __divmodsi4 -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divsc3_test.c b/test/builtins/Unit/divsc3_test.c
index daa2218..f9ad42a 100644
--- a/test/builtins/Unit/divsc3_test.c
+++ b/test/builtins/Unit/divsc3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
 //===-- divsc3_test.c - Test __divsc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divsf3vfp_test.c b/test/builtins/Unit/divsf3vfp_test.c
index 75b7eba..fc3860e 100644
--- a/test/builtins/Unit/divsf3vfp_test.c
+++ b/test/builtins/Unit/divsf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divsf3vfp_test.c - Test __divsf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divsi3_test.c b/test/builtins/Unit/divsi3_test.c
index 4c5d0fb..fb45340 100644
--- a/test/builtins/Unit/divsi3_test.c
+++ b/test/builtins/Unit/divsi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- divsi3_test.c - Test __divsi3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divtc3_test.c b/test/builtins/Unit/divtc3_test.c
index 7474330..b809ca2 100644
--- a/test/builtins/Unit/divtc3_test.c
+++ b/test/builtins/Unit/divtc3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
 //===-- divtc3_test.c - Test __divtc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divtf3_test.c b/test/builtins/Unit/divtf3_test.c
index 12cb94a..a9ff43e 100644
--- a/test/builtins/Unit/divtf3_test.c
+++ b/test/builtins/Unit/divtf3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- divtf3_test.c - Test __divtf3 ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divti3_test.c b/test/builtins/Unit/divti3_test.c
index 77776e2..e29658d 100644
--- a/test/builtins/Unit/divti3_test.c
+++ b/test/builtins/Unit/divti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- divti3_test.c - Test __divti3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/divxc3_test.c b/test/builtins/Unit/divxc3_test.c
index 876cdde..4dbe5af 100644
--- a/test/builtins/Unit/divxc3_test.c
+++ b/test/builtins/Unit/divxc3_test.c
@@ -3,10 +3,9 @@
 // UNSUPPORTED: powerpc64
 //===-- divxc3_test.c - Test __divxc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/enable_execute_stack_test.c b/test/builtins/Unit/enable_execute_stack_test.c
index 72fc042..ef29a16 100644
--- a/test/builtins/Unit/enable_execute_stack_test.c
+++ b/test/builtins/Unit/enable_execute_stack_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- enable_execute_stack_test.c - Test __enable_execute_stack ----------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/test/builtins/Unit/endianness.h b/test/builtins/Unit/endianness.h
index 9cecd21..f868e3f 100644
--- a/test/builtins/Unit/endianness.h
+++ b/test/builtins/Unit/endianness.h
@@ -1,9 +1,8 @@
 /* ===-- endianness.h - configuration header for libgcc replacement --------===
  *
- *		       The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/test/builtins/Unit/eqdf2vfp_test.c b/test/builtins/Unit/eqdf2vfp_test.c
index 69dd37b..789a509 100644
--- a/test/builtins/Unit/eqdf2vfp_test.c
+++ b/test/builtins/Unit/eqdf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- eqdf2vfp_test.c - Test __eqdf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/eqsf2vfp_test.c b/test/builtins/Unit/eqsf2vfp_test.c
index 9c8dc16..9ab7481 100644
--- a/test/builtins/Unit/eqsf2vfp_test.c
+++ b/test/builtins/Unit/eqsf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- eqsf2vfp_test.c - Test __eqsf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/eqtf2_test.c b/test/builtins/Unit/eqtf2_test.c
index 91b35cf..e460b08 100644
--- a/test/builtins/Unit/eqtf2_test.c
+++ b/test/builtins/Unit/eqtf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ eqtf2_test.c - Test __eqtf2------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/extebdsfdf2vfp_test.c b/test/builtins/Unit/extebdsfdf2vfp_test.c
index c350d93..2255e67 100644
--- a/test/builtins/Unit/extebdsfdf2vfp_test.c
+++ b/test/builtins/Unit/extebdsfdf2vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- extendsfdf2vfp_test.c - Test __extendsfdf2vfp ---------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/extenddftf2_test.c b/test/builtins/Unit/extenddftf2_test.c
index 7254141..0ca825d 100644
--- a/test/builtins/Unit/extenddftf2_test.c
+++ b/test/builtins/Unit/extenddftf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- extenddftf2_test.c - Test __extenddftf2 --------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/extendhfsf2_test.c b/test/builtins/Unit/extendhfsf2_test.c
index d423e7b..7367680 100644
--- a/test/builtins/Unit/extendhfsf2_test.c
+++ b/test/builtins/Unit/extendhfsf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- extendhfsf2_test.c - Test __extendhfsf2 --------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/extendsftf2_test.c b/test/builtins/Unit/extendsftf2_test.c
index 4fad906..2357fd3 100644
--- a/test/builtins/Unit/extendsftf2_test.c
+++ b/test/builtins/Unit/extendsftf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- extendsftf2_test.c - Test __extendsftf2 --------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ffsdi2_test.c b/test/builtins/Unit/ffsdi2_test.c
index 80c0c08..86ab9b9 100644
--- a/test/builtins/Unit/ffsdi2_test.c
+++ b/test/builtins/Unit/ffsdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ffsdi2_test.c - Test __ffsdi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ffssi2_test.c b/test/builtins/Unit/ffssi2_test.c
index 5d96b96..f97b398 100644
--- a/test/builtins/Unit/ffssi2_test.c
+++ b/test/builtins/Unit/ffssi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ffssi2_test.c - Test __ffssi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ffsti2_test.c b/test/builtins/Unit/ffsti2_test.c
index a7f0ca0..abc32e1 100644
--- a/test/builtins/Unit/ffsti2_test.c
+++ b/test/builtins/Unit/ffsti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- ffsti2_test.c - Test __ffsti2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixdfdi_test.c b/test/builtins/Unit/fixdfdi_test.c
index d2ba7b1..30f0a3b 100644
--- a/test/builtins/Unit/fixdfdi_test.c
+++ b/test/builtins/Unit/fixdfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixdfdi_test.c - Test __fixdfdi -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixdfsivfp_test.c b/test/builtins/Unit/fixdfsivfp_test.c
index 33b4d24..4a76ea9 100644
--- a/test/builtins/Unit/fixdfsivfp_test.c
+++ b/test/builtins/Unit/fixdfsivfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- fixdfsivfp_test.c - Test __fixdfsivfp -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixdfti_test.c b/test/builtins/Unit/fixdfti_test.c
index 2b9db0f..9a2de08 100644
--- a/test/builtins/Unit/fixdfti_test.c
+++ b/test/builtins/Unit/fixdfti_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- fixdfti_test.c - Test __fixdfti -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixsfdi_test.c b/test/builtins/Unit/fixsfdi_test.c
index 468299f..e4b23f5 100644
--- a/test/builtins/Unit/fixsfdi_test.c
+++ b/test/builtins/Unit/fixsfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixsfdi_test.c - Test __fixsfdi -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixsfsivfp_test.c b/test/builtins/Unit/fixsfsivfp_test.c
index ee33a1d..7e60393 100644
--- a/test/builtins/Unit/fixsfsivfp_test.c
+++ b/test/builtins/Unit/fixsfsivfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- fixsfsivfp_test.c - Test __fixsfsivfp -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixsfti_test.c b/test/builtins/Unit/fixsfti_test.c
index 25cf092..bf985d2 100644
--- a/test/builtins/Unit/fixsfti_test.c
+++ b/test/builtins/Unit/fixsfti_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- fixsfti_test.c - Test __fixsfti -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixtfdi_test.c b/test/builtins/Unit/fixtfdi_test.c
index 3cd1ebf..1d1e110 100644
--- a/test/builtins/Unit/fixtfdi_test.c
+++ b/test/builtins/Unit/fixtfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- fixtfdi_test.c - Test __fixtfdi ----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixtfsi_test.c b/test/builtins/Unit/fixtfsi_test.c
index 59e4352..752ede2 100644
--- a/test/builtins/Unit/fixtfsi_test.c
+++ b/test/builtins/Unit/fixtfsi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- fixtfsi_test.c - Test __fixtfsi ----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixtfti_test.c b/test/builtins/Unit/fixtfti_test.c
index 4d3b56c..ea64814 100644
--- a/test/builtins/Unit/fixtfti_test.c
+++ b/test/builtins/Unit/fixtfti_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- fixtfti_test.c - Test __fixtfti ----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunsdfdi_test.c b/test/builtins/Unit/fixunsdfdi_test.c
index ab09bd0..0497a91 100644
--- a/test/builtins/Unit/fixunsdfdi_test.c
+++ b/test/builtins/Unit/fixunsdfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunsdfdi_test.c - Test __fixunsdfdi -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunsdfsi_test.c b/test/builtins/Unit/fixunsdfsi_test.c
index 7fbd9ee..967e473 100644
--- a/test/builtins/Unit/fixunsdfsi_test.c
+++ b/test/builtins/Unit/fixunsdfsi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunsdfsi_test.c - Test __fixunsdfsi -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunsdfsivfp_test.c b/test/builtins/Unit/fixunsdfsivfp_test.c
index b707992..6d9b230 100644
--- a/test/builtins/Unit/fixunsdfsivfp_test.c
+++ b/test/builtins/Unit/fixunsdfsivfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunsdfsivfp_test.c - Test __fixunsdfsivfp -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunsdfti_test.c b/test/builtins/Unit/fixunsdfti_test.c
index ca0bb76..0c68a66 100644
--- a/test/builtins/Unit/fixunsdfti_test.c
+++ b/test/builtins/Unit/fixunsdfti_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- fixunsdfti_test.c - Test __fixunsdfti -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunssfdi_test.c b/test/builtins/Unit/fixunssfdi_test.c
index 2d693eb..e68be55 100644
--- a/test/builtins/Unit/fixunssfdi_test.c
+++ b/test/builtins/Unit/fixunssfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunssfdi_test.c - Test __fixunssfdi -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunssfsi_test.c b/test/builtins/Unit/fixunssfsi_test.c
index 3974b53..89b16d8 100644
--- a/test/builtins/Unit/fixunssfsi_test.c
+++ b/test/builtins/Unit/fixunssfsi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunssfsi_test.c - Test __fixunssfsi -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunssfsivfp_test.c b/test/builtins/Unit/fixunssfsivfp_test.c
index c1d8ed7..1f3df0b 100644
--- a/test/builtins/Unit/fixunssfsivfp_test.c
+++ b/test/builtins/Unit/fixunssfsivfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- fixunssfsivfp_test.c - Test __fixunssfsivfp -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunssfti_test.c b/test/builtins/Unit/fixunssfti_test.c
index 2306d28..7d75d22 100644
--- a/test/builtins/Unit/fixunssfti_test.c
+++ b/test/builtins/Unit/fixunssfti_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- fixunssfti_test.c - Test __fixunssfti -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunstfdi_test.c b/test/builtins/Unit/fixunstfdi_test.c
index 67fcc2f..ddaea4e 100644
--- a/test/builtins/Unit/fixunstfdi_test.c
+++ b/test/builtins/Unit/fixunstfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunstfdi_test.c - Test __fixunstfdi -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunstfsi_test.c b/test/builtins/Unit/fixunstfsi_test.c
index edf5422..b6958ec 100644
--- a/test/builtins/Unit/fixunstfsi_test.c
+++ b/test/builtins/Unit/fixunstfsi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- fixunstfsi_test.c - Test __fixunstfsi ----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunstfti_test.c b/test/builtins/Unit/fixunstfti_test.c
index eaf4b8f..b4013d5 100644
--- a/test/builtins/Unit/fixunstfti_test.c
+++ b/test/builtins/Unit/fixunstfti_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunstfti_test.c - Test __fixunstfti -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunsxfdi_test.c b/test/builtins/Unit/fixunsxfdi_test.c
index c5c27d3..7bbeccf 100644
--- a/test/builtins/Unit/fixunsxfdi_test.c
+++ b/test/builtins/Unit/fixunsxfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunsxfdi_test.c - Test __fixunsxfdi -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunsxfsi_test.c b/test/builtins/Unit/fixunsxfsi_test.c
index e0bed7e..ae7e5b6 100644
--- a/test/builtins/Unit/fixunsxfsi_test.c
+++ b/test/builtins/Unit/fixunsxfsi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixunsxfsi_test.c - Test __fixunsxfsi -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixunsxfti_test.c b/test/builtins/Unit/fixunsxfti_test.c
index 4e6fd39..8527d57 100644
--- a/test/builtins/Unit/fixunsxfti_test.c
+++ b/test/builtins/Unit/fixunsxfti_test.c
@@ -3,10 +3,9 @@
 
 //===-- fixunsxfti_test.c - Test __fixunsxfti -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixxfdi_test.c b/test/builtins/Unit/fixxfdi_test.c
index dcfa75c..6cb31b3 100644
--- a/test/builtins/Unit/fixxfdi_test.c
+++ b/test/builtins/Unit/fixxfdi_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- fixxfdi_test.c - Test __fixxfdi -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fixxfti_test.c b/test/builtins/Unit/fixxfti_test.c
index 86f4c02..b923388 100644
--- a/test/builtins/Unit/fixxfti_test.c
+++ b/test/builtins/Unit/fixxfti_test.c
@@ -3,10 +3,9 @@
 
 //===-- fixxfti_test.c - Test __fixxfti -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatdidf_test.c b/test/builtins/Unit/floatdidf_test.c
index 7742917..e3e091e 100644
--- a/test/builtins/Unit/floatdidf_test.c
+++ b/test/builtins/Unit/floatdidf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatdidf.c - Test __floatdidf ------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatdisf_test.c b/test/builtins/Unit/floatdisf_test.c
index 8299bb1..ce7a04d 100644
--- a/test/builtins/Unit/floatdisf_test.c
+++ b/test/builtins/Unit/floatdisf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatdisf_test.c - Test __floatdisf -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatditf_test.c b/test/builtins/Unit/floatditf_test.c
index bdfb7f9..27ef948 100644
--- a/test/builtins/Unit/floatditf_test.c
+++ b/test/builtins/Unit/floatditf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatditf_test.c - Test __floatditf -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatdixf_test.c b/test/builtins/Unit/floatdixf_test.c
index 0a4ca3a..0ee92e8 100644
--- a/test/builtins/Unit/floatdixf_test.c
+++ b/test/builtins/Unit/floatdixf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatdixf_test.c - Test __floatdixf -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatsidfvfp_test.c b/test/builtins/Unit/floatsidfvfp_test.c
index 8a3c7fb..eb1d06b 100644
--- a/test/builtins/Unit/floatsidfvfp_test.c
+++ b/test/builtins/Unit/floatsidfvfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatsidfvfp_test.c - Test __floatsidfvfp -------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatsisfvfp_test.c b/test/builtins/Unit/floatsisfvfp_test.c
index 7c044b2..b977e33 100644
--- a/test/builtins/Unit/floatsisfvfp_test.c
+++ b/test/builtins/Unit/floatsisfvfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatsisfvfp_test.c - Test __floatsisfvfp -------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatsitf_test.c b/test/builtins/Unit/floatsitf_test.c
index f8d700b..424a10f 100644
--- a/test/builtins/Unit/floatsitf_test.c
+++ b/test/builtins/Unit/floatsitf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- floatsitf_test.c - Test __floatsitf ------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floattidf_test.c b/test/builtins/Unit/floattidf_test.c
index 51178f2..76288f0 100644
--- a/test/builtins/Unit/floattidf_test.c
+++ b/test/builtins/Unit/floattidf_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- floattidf.c - Test __floattidf ------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floattisf_test.c b/test/builtins/Unit/floattisf_test.c
index 9162471..4d48d94 100644
--- a/test/builtins/Unit/floattisf_test.c
+++ b/test/builtins/Unit/floattisf_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- floattisf_test.c - Test __floattisf -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floattitf_test.c b/test/builtins/Unit/floattitf_test.c
index 5aeb760..f0c7dfb 100644
--- a/test/builtins/Unit/floattitf_test.c
+++ b/test/builtins/Unit/floattitf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floattitf.c - Test __floattitf ------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floattixf_test.c b/test/builtins/Unit/floattixf_test.c
index 501a8dc..5ab4712 100644
--- a/test/builtins/Unit/floattixf_test.c
+++ b/test/builtins/Unit/floattixf_test.c
@@ -3,10 +3,9 @@
 
 //===-- floattixf.c - Test __floattixf ------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatundidf_test.c b/test/builtins/Unit/floatundidf_test.c
index d5d7419..e165228 100644
--- a/test/builtins/Unit/floatundidf_test.c
+++ b/test/builtins/Unit/floatundidf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatundidf_test.c - Test __floatundidf ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatundisf_test.c b/test/builtins/Unit/floatundisf_test.c
index 898d886..1a2feeb 100644
--- a/test/builtins/Unit/floatundisf_test.c
+++ b/test/builtins/Unit/floatundisf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatundisf_test.c - Test __floatundisf ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatunditf_test.c b/test/builtins/Unit/floatunditf_test.c
index 342dc27..163f009 100644
--- a/test/builtins/Unit/floatunditf_test.c
+++ b/test/builtins/Unit/floatunditf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatunditf_test.c - Test __floatunditf ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatundixf_test.c b/test/builtins/Unit/floatundixf_test.c
index 47b4316..3566535 100644
--- a/test/builtins/Unit/floatundixf_test.c
+++ b/test/builtins/Unit/floatundixf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatundixf_test.c - Test __floatundixf ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatunsitf_test.c b/test/builtins/Unit/floatunsitf_test.c
index 966a4fd..99ca0b6 100644
--- a/test/builtins/Unit/floatunsitf_test.c
+++ b/test/builtins/Unit/floatunsitf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- floatunsitf_test.c - Test __floatunsitf --------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatunssidfvfp_test.c b/test/builtins/Unit/floatunssidfvfp_test.c
index 7337557..e1ce2d2 100644
--- a/test/builtins/Unit/floatunssidfvfp_test.c
+++ b/test/builtins/Unit/floatunssidfvfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatunssidfvfp_test.c - Test __floatunssidfvfp -------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatunssisfvfp_test.c b/test/builtins/Unit/floatunssisfvfp_test.c
index 9d7fb65..878a42d 100644
--- a/test/builtins/Unit/floatunssisfvfp_test.c
+++ b/test/builtins/Unit/floatunssisfvfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatunssisfvfp_test.c - Test __floatunssisfvfp -------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatuntidf_test.c b/test/builtins/Unit/floatuntidf_test.c
index f91d0e1..47c2815 100644
--- a/test/builtins/Unit/floatuntidf_test.c
+++ b/test/builtins/Unit/floatuntidf_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- floatuntidf.c - Test __floatuntidf --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatuntisf_test.c b/test/builtins/Unit/floatuntisf_test.c
index f460a05..b3a50ed 100644
--- a/test/builtins/Unit/floatuntisf_test.c
+++ b/test/builtins/Unit/floatuntisf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatuntisf.c - Test __floatuntisf --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatuntitf_test.c b/test/builtins/Unit/floatuntitf_test.c
index e81c30e..eb4287d 100644
--- a/test/builtins/Unit/floatuntitf_test.c
+++ b/test/builtins/Unit/floatuntitf_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- floatuntitf.c - Test __floatuntitf --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/floatuntixf_test.c b/test/builtins/Unit/floatuntixf_test.c
index a9a8441..9ff0b5f 100644
--- a/test/builtins/Unit/floatuntixf_test.c
+++ b/test/builtins/Unit/floatuntixf_test.c
@@ -3,10 +3,9 @@
 
 //===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/fp_test.h b/test/builtins/Unit/fp_test.h
index 781b7e2..49f7197 100644
--- a/test/builtins/Unit/fp_test.h
+++ b/test/builtins/Unit/fp_test.h
@@ -1,9 +1,8 @@
 //===--------------------------- fp_test.h - ------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/gcc_personality_test.c b/test/builtins/Unit/gcc_personality_test.c
index b3345dd..9b2d412 100644
--- a/test/builtins/Unit/gcc_personality_test.c
+++ b/test/builtins/Unit/gcc_personality_test.c
@@ -3,10 +3,9 @@
 // RUN: %clangxx_builtins %s %librt -o %t && %run %t
 /* ===-- gcc_personality_test.c - Tests __gcc_personality_v0 -------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/test/builtins/Unit/gcc_personality_test_helper.cxx b/test/builtins/Unit/gcc_personality_test_helper.cxx
index 7d1ddfb..8987cac 100644
--- a/test/builtins/Unit/gcc_personality_test_helper.cxx
+++ b/test/builtins/Unit/gcc_personality_test_helper.cxx
@@ -1,9 +1,8 @@
 //===-- gcc_personality_test_helper.cxx -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
diff --git a/test/builtins/Unit/gedf2vfp_test.c b/test/builtins/Unit/gedf2vfp_test.c
index ad72083..0edf4b8 100644
--- a/test/builtins/Unit/gedf2vfp_test.c
+++ b/test/builtins/Unit/gedf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- gedf2vfp_test.c - Test __gedf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/gesf2vfp_test.c b/test/builtins/Unit/gesf2vfp_test.c
index 8a855e1..e84fa46 100644
--- a/test/builtins/Unit/gesf2vfp_test.c
+++ b/test/builtins/Unit/gesf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- gesf2vfp_test.c - Test __gesf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/getf2_test.c b/test/builtins/Unit/getf2_test.c
index 115b630..be8e122 100644
--- a/test/builtins/Unit/getf2_test.c
+++ b/test/builtins/Unit/getf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ getf2_test.c - Test __getf2------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/gtdf2vfp_test.c b/test/builtins/Unit/gtdf2vfp_test.c
index e6eb545..d69d053 100644
--- a/test/builtins/Unit/gtdf2vfp_test.c
+++ b/test/builtins/Unit/gtdf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- gtdf2vfp_test.c - Test __gtdf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/gtsf2vfp_test.c b/test/builtins/Unit/gtsf2vfp_test.c
index e0442c6..b1eccfe 100644
--- a/test/builtins/Unit/gtsf2vfp_test.c
+++ b/test/builtins/Unit/gtsf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- gtsf2vfp_test.c - Test __gtsf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/gttf2_test.c b/test/builtins/Unit/gttf2_test.c
index 81d68cb..712d681 100644
--- a/test/builtins/Unit/gttf2_test.c
+++ b/test/builtins/Unit/gttf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ gttf2_test.c - Test __gttf2------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ledf2vfp_test.c b/test/builtins/Unit/ledf2vfp_test.c
index f0cd56e..651a6cc 100644
--- a/test/builtins/Unit/ledf2vfp_test.c
+++ b/test/builtins/Unit/ledf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- ledf2vfp_test.c - Test __ledf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/lesf2vfp_test.c b/test/builtins/Unit/lesf2vfp_test.c
index 02ae182..274be1b 100644
--- a/test/builtins/Unit/lesf2vfp_test.c
+++ b/test/builtins/Unit/lesf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- lesf2vfp_test.c - Test __lesf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/letf2_test.c b/test/builtins/Unit/letf2_test.c
index bb84525..39b3e9b 100644
--- a/test/builtins/Unit/letf2_test.c
+++ b/test/builtins/Unit/letf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ letf2_test.c - Test __letf2------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/lshrdi3_test.c b/test/builtins/Unit/lshrdi3_test.c
index c5faa98..791980b 100644
--- a/test/builtins/Unit/lshrdi3_test.c
+++ b/test/builtins/Unit/lshrdi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- lshrdi3_test.c - Test __lshrdi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/lshrti3_test.c b/test/builtins/Unit/lshrti3_test.c
index 51020ed..c164377 100644
--- a/test/builtins/Unit/lshrti3_test.c
+++ b/test/builtins/Unit/lshrti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- lshrti3_test.c - Test __lshrti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ltdf2vfp_test.c b/test/builtins/Unit/ltdf2vfp_test.c
index 1edb319..89a719d 100644
--- a/test/builtins/Unit/ltdf2vfp_test.c
+++ b/test/builtins/Unit/ltdf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- ltdf2vfp_test.c - Test __ltdf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ltsf2vfp_test.c b/test/builtins/Unit/ltsf2vfp_test.c
index 2fc0c11..d286ac0 100644
--- a/test/builtins/Unit/ltsf2vfp_test.c
+++ b/test/builtins/Unit/ltsf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- ltsf2vfp_test.c - Test __ltsf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/lttf2_test.c b/test/builtins/Unit/lttf2_test.c
index cfe1906..c57c5d7 100644
--- a/test/builtins/Unit/lttf2_test.c
+++ b/test/builtins/Unit/lttf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ lttf2_test.c - Test __lttf2------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/moddi3_test.c b/test/builtins/Unit/moddi3_test.c
index 8325ad7..02face1 100644
--- a/test/builtins/Unit/moddi3_test.c
+++ b/test/builtins/Unit/moddi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- moddi3_test.c - Test __moddi3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/modsi3_test.c b/test/builtins/Unit/modsi3_test.c
index 8075f51..bab9444 100644
--- a/test/builtins/Unit/modsi3_test.c
+++ b/test/builtins/Unit/modsi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 /* ===-- modsi3_test.c - Test __modsi3 -------------------------------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  *
diff --git a/test/builtins/Unit/modti3_test.c b/test/builtins/Unit/modti3_test.c
index 9faa0b5..22b4483 100644
--- a/test/builtins/Unit/modti3_test.c
+++ b/test/builtins/Unit/modti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- modti3_test.c - Test __modti3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/muldc3_test.c b/test/builtins/Unit/muldc3_test.c
index 5a856bc..855a05f 100644
--- a/test/builtins/Unit/muldc3_test.c
+++ b/test/builtins/Unit/muldc3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
 //===-- muldc3_test.c - Test __muldc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/muldf3vfp_test.c b/test/builtins/Unit/muldf3vfp_test.c
index 36a2262..7022906 100644
--- a/test/builtins/Unit/muldf3vfp_test.c
+++ b/test/builtins/Unit/muldf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- muldf3vfp_test.c - Test __muldf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/muldi3_test.c b/test/builtins/Unit/muldi3_test.c
index d09e74d..c4eaf04 100644
--- a/test/builtins/Unit/muldi3_test.c
+++ b/test/builtins/Unit/muldi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- muldi3_test.c - Test __muldi3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulodi4_test.c b/test/builtins/Unit/mulodi4_test.c
index f03b8fe..d3d46ad 100644
--- a/test/builtins/Unit/mulodi4_test.c
+++ b/test/builtins/Unit/mulodi4_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- mulodi4_test.c - Test __mulodi4 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulosi4_test.c b/test/builtins/Unit/mulosi4_test.c
index 12913f1..4e90fb7 100644
--- a/test/builtins/Unit/mulosi4_test.c
+++ b/test/builtins/Unit/mulosi4_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- mulosi4_test.c - Test __mulosi4 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/muloti4_test.c b/test/builtins/Unit/muloti4_test.c
index 9eb56f6..d13a977 100644
--- a/test/builtins/Unit/muloti4_test.c
+++ b/test/builtins/Unit/muloti4_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- muloti4_test.c - Test __muloti4 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulsc3_test.c b/test/builtins/Unit/mulsc3_test.c
index 4125a30..0a4b929 100644
--- a/test/builtins/Unit/mulsc3_test.c
+++ b/test/builtins/Unit/mulsc3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -lm -o %t && %run %t
 //===-- mulsc3_test.c - Test __mulsc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulsf3vfp_test.c b/test/builtins/Unit/mulsf3vfp_test.c
index 8ee0551..464e9f1 100644
--- a/test/builtins/Unit/mulsf3vfp_test.c
+++ b/test/builtins/Unit/mulsf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- mulsf3vfp_test.c - Test __mulsf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/multc3_test.c b/test/builtins/Unit/multc3_test.c
index 5ef8467..8112605 100644
--- a/test/builtins/Unit/multc3_test.c
+++ b/test/builtins/Unit/multc3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- multc3_test.c - Test __multc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/multf3_test.c b/test/builtins/Unit/multf3_test.c
index 2bce707..c821799 100644
--- a/test/builtins/Unit/multf3_test.c
+++ b/test/builtins/Unit/multf3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- multf3_test.c - Test __multf3 ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/multi3_test.c b/test/builtins/Unit/multi3_test.c
index d92bae6..52516cd 100644
--- a/test/builtins/Unit/multi3_test.c
+++ b/test/builtins/Unit/multi3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- multi3_test.c - Test __multi3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulvdi3_test.c b/test/builtins/Unit/mulvdi3_test.c
index 0e10bbe..5b0c3cb 100644
--- a/test/builtins/Unit/mulvdi3_test.c
+++ b/test/builtins/Unit/mulvdi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- mulvdi3_test.c - Test __mulvdi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulvsi3_test.c b/test/builtins/Unit/mulvsi3_test.c
index f62a5aa..3e38a88 100644
--- a/test/builtins/Unit/mulvsi3_test.c
+++ b/test/builtins/Unit/mulvsi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- mulvsi3_test.c - Test __mulvsi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulvti3_test.c b/test/builtins/Unit/mulvti3_test.c
index f964ed6..9afe3c8 100644
--- a/test/builtins/Unit/mulvti3_test.c
+++ b/test/builtins/Unit/mulvti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- mulvti3_test.c - Test __mulvti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/mulxc3_test.c b/test/builtins/Unit/mulxc3_test.c
index 9f0b418..8458daf 100644
--- a/test/builtins/Unit/mulxc3_test.c
+++ b/test/builtins/Unit/mulxc3_test.c
@@ -3,10 +3,9 @@
 // REQUIRES: x86-target-arch
 //===-- mulxc3_test.c - Test __mulxc3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/nedf2vfp_test.c b/test/builtins/Unit/nedf2vfp_test.c
index 536917a..b6f0f4a 100644
--- a/test/builtins/Unit/nedf2vfp_test.c
+++ b/test/builtins/Unit/nedf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- nedf2vfp_test.c - Test __nedf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/negdf2vfp_test.c b/test/builtins/Unit/negdf2vfp_test.c
index 776dca6..221452e 100644
--- a/test/builtins/Unit/negdf2vfp_test.c
+++ b/test/builtins/Unit/negdf2vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- negdf2vfp_test.c - Test __negdf2vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/negdi2_test.c b/test/builtins/Unit/negdi2_test.c
index c85e915..7738688 100644
--- a/test/builtins/Unit/negdi2_test.c
+++ b/test/builtins/Unit/negdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- negdi2_test.c - Test __negdi2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/negsf2vfp_test.c b/test/builtins/Unit/negsf2vfp_test.c
index e15e43c..72b990f 100644
--- a/test/builtins/Unit/negsf2vfp_test.c
+++ b/test/builtins/Unit/negsf2vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- negsf2vfp_test.c - Test __negsf2vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/negti2_test.c b/test/builtins/Unit/negti2_test.c
index 89eb0b0..45533d0 100644
--- a/test/builtins/Unit/negti2_test.c
+++ b/test/builtins/Unit/negti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- negti2_test.c - Test __negti2 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/negvdi2_test.c b/test/builtins/Unit/negvdi2_test.c
index 4e17c30..f6e70c8 100644
--- a/test/builtins/Unit/negvdi2_test.c
+++ b/test/builtins/Unit/negvdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- negvdi2_test.c - Test __negvdi2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/negvsi2_test.c b/test/builtins/Unit/negvsi2_test.c
index 3deb423..437ba88 100644
--- a/test/builtins/Unit/negvsi2_test.c
+++ b/test/builtins/Unit/negvsi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- negvsi2_test.c - Test __negvsi2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/negvti2_test.c b/test/builtins/Unit/negvti2_test.c
index 9c2765e..fd2ee25 100644
--- a/test/builtins/Unit/negvti2_test.c
+++ b/test/builtins/Unit/negvti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- negvti2_test.c - Test __negvti2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/nesf2vfp_test.c b/test/builtins/Unit/nesf2vfp_test.c
index bb01490..dca50c7 100644
--- a/test/builtins/Unit/nesf2vfp_test.c
+++ b/test/builtins/Unit/nesf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- nesf2vfp_test.c - Test __nesf2vfp ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/netf2_test.c b/test/builtins/Unit/netf2_test.c
index c0b839d..7511497 100644
--- a/test/builtins/Unit/netf2_test.c
+++ b/test/builtins/Unit/netf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ netf2_test.c - Test __netf2------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/paritydi2_test.c b/test/builtins/Unit/paritydi2_test.c
index cc56eda..ac5e472 100644
--- a/test/builtins/Unit/paritydi2_test.c
+++ b/test/builtins/Unit/paritydi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- paritydi2_test.c - Test __paritydi2 -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/paritysi2_test.c b/test/builtins/Unit/paritysi2_test.c
index 42d687f..f650b56 100644
--- a/test/builtins/Unit/paritysi2_test.c
+++ b/test/builtins/Unit/paritysi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- paritysi2_test.c - Test __paritysi2 -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/parityti2_test.c b/test/builtins/Unit/parityti2_test.c
index 11d578b..2a1b654 100644
--- a/test/builtins/Unit/parityti2_test.c
+++ b/test/builtins/Unit/parityti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- parityti2_test.c - Test __parityti2 -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/popcountdi2_test.c b/test/builtins/Unit/popcountdi2_test.c
index 1d52fb8..1d0eaee 100644
--- a/test/builtins/Unit/popcountdi2_test.c
+++ b/test/builtins/Unit/popcountdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- popcountdi2_test.c - Test __popcountdi2 ----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/popcountsi2_test.c b/test/builtins/Unit/popcountsi2_test.c
index 5eb88ac..4ab3499 100644
--- a/test/builtins/Unit/popcountsi2_test.c
+++ b/test/builtins/Unit/popcountsi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- popcountsi2_test.c - Test __popcountsi2 ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/popcountti2_test.c b/test/builtins/Unit/popcountti2_test.c
index 91c169f..4e32ba7 100644
--- a/test/builtins/Unit/popcountti2_test.c
+++ b/test/builtins/Unit/popcountti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- popcountti2_test.c - Test __popcountti2 ----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/powidf2_test.c b/test/builtins/Unit/powidf2_test.c
index 210e3c3..6bdca08 100644
--- a/test/builtins/Unit/powidf2_test.c
+++ b/test/builtins/Unit/powidf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- powidf2_test.cpp - Test __powidf2 ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/powisf2_test.c b/test/builtins/Unit/powisf2_test.c
index add4be4..f344f08 100644
--- a/test/builtins/Unit/powisf2_test.c
+++ b/test/builtins/Unit/powisf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- powisf2_test.cpp - Test __powisf2 ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/powitf2_test.c b/test/builtins/Unit/powitf2_test.c
index 9d11b76..0850d77 100644
--- a/test/builtins/Unit/powitf2_test.c
+++ b/test/builtins/Unit/powitf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- powitf2_test.cpp - Test __powitf2 ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/powixf2_test.c b/test/builtins/Unit/powixf2_test.c
index 1df76f2..03a157f 100644
--- a/test/builtins/Unit/powixf2_test.c
+++ b/test/builtins/Unit/powixf2_test.c
@@ -3,10 +3,9 @@
 // REQUIRES: x86-target-arch
 //===-- powixf2_test.cpp - Test __powixf2 ---------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/riscv/mulsi3_test.c b/test/builtins/Unit/riscv/mulsi3_test.c
index 9033004..8383d45 100644
--- a/test/builtins/Unit/riscv/mulsi3_test.c
+++ b/test/builtins/Unit/riscv/mulsi3_test.c
@@ -2,10 +2,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- mulsi3_test.c - Test __mulsi3 -------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/subdf3vfp_test.c b/test/builtins/Unit/subdf3vfp_test.c
index 75bfe45..afaaca8 100644
--- a/test/builtins/Unit/subdf3vfp_test.c
+++ b/test/builtins/Unit/subdf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- subdf3vfp_test.c - Test __subdf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/subsf3vfp_test.c b/test/builtins/Unit/subsf3vfp_test.c
index fb3839f..d93df6b 100644
--- a/test/builtins/Unit/subsf3vfp_test.c
+++ b/test/builtins/Unit/subsf3vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- subsf3vfp_test.c - Test __subsf3vfp -------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/subtf3_test.c b/test/builtins/Unit/subtf3_test.c
index 771242b..bcf82e0 100644
--- a/test/builtins/Unit/subtf3_test.c
+++ b/test/builtins/Unit/subtf3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- subtf3_test.c - Test __subtf3 ------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/subvdi3_test.c b/test/builtins/Unit/subvdi3_test.c
index 7606e27..04febf9 100644
--- a/test/builtins/Unit/subvdi3_test.c
+++ b/test/builtins/Unit/subvdi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- subvdi3_test.c - Test __subvdi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/subvsi3_test.c b/test/builtins/Unit/subvsi3_test.c
index f52a12b..fc8898e 100644
--- a/test/builtins/Unit/subvsi3_test.c
+++ b/test/builtins/Unit/subvsi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- subvsi3_test.c - Test __subvsi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/subvti3_test.c b/test/builtins/Unit/subvti3_test.c
index 3add1eb..9db9674 100644
--- a/test/builtins/Unit/subvti3_test.c
+++ b/test/builtins/Unit/subvti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- subvti3_test.c - Test __subvti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/trampoline_setup_test.c b/test/builtins/Unit/trampoline_setup_test.c
index b8c3eae..316d7cc 100644
--- a/test/builtins/Unit/trampoline_setup_test.c
+++ b/test/builtins/Unit/trampoline_setup_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -fnested-functions -o %t && %run %t
 /* ===-- trampoline_setup_test.c - Test __trampoline_setup -----------------===
  *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
+ * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+ * See https://llvm.org/LICENSE.txt for license information.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  *
  * ===----------------------------------------------------------------------===
  */
diff --git a/test/builtins/Unit/truncdfhf2_test.c b/test/builtins/Unit/truncdfhf2_test.c
index b172811..1b09fef 100644
--- a/test/builtins/Unit/truncdfhf2_test.c
+++ b/test/builtins/Unit/truncdfhf2_test.c
@@ -2,10 +2,9 @@
 
 //===--------------- truncdfhf2_test.c - Test __truncdfhf2 ----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/truncdfsf2_test.c b/test/builtins/Unit/truncdfsf2_test.c
index 04bebf4..6c8f119 100644
--- a/test/builtins/Unit/truncdfsf2_test.c
+++ b/test/builtins/Unit/truncdfsf2_test.c
@@ -2,10 +2,9 @@
 
 //===--------------- truncdfsf2_test.c - Test __truncdfsf2 ----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/truncdfsf2vfp_test.c b/test/builtins/Unit/truncdfsf2vfp_test.c
index f034dd2..0e52d34 100644
--- a/test/builtins/Unit/truncdfsf2vfp_test.c
+++ b/test/builtins/Unit/truncdfsf2vfp_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- truncdfsf2vfp_test.c - Test __truncdfsf2vfp -----------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/truncsfhf2_test.c b/test/builtins/Unit/truncsfhf2_test.c
index 2240c14..f6f3fc2 100644
--- a/test/builtins/Unit/truncsfhf2_test.c
+++ b/test/builtins/Unit/truncsfhf2_test.c
@@ -2,10 +2,9 @@
 
 //===--------------- truncsfhf2_test.c - Test __truncsfhf2 ----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/trunctfdf2_test.c b/test/builtins/Unit/trunctfdf2_test.c
index 1d8c2bf..ae372be 100644
--- a/test/builtins/Unit/trunctfdf2_test.c
+++ b/test/builtins/Unit/trunctfdf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-------------- trunctfdf2_test.c - Test __trunctfdf2 -----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/trunctfsf2_test.c b/test/builtins/Unit/trunctfsf2_test.c
index 1775083..3f350e6 100644
--- a/test/builtins/Unit/trunctfsf2_test.c
+++ b/test/builtins/Unit/trunctfsf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===--------------- trunctfsf2_test.c - Test __trunctfsf2 ----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ucmpdi2_test.c b/test/builtins/Unit/ucmpdi2_test.c
index ee81545..6faaac1 100644
--- a/test/builtins/Unit/ucmpdi2_test.c
+++ b/test/builtins/Unit/ucmpdi2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- ucmpdi2_test.c - Test __ucmpdi2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/ucmpti2_test.c b/test/builtins/Unit/ucmpti2_test.c
index 39a6f5b..71db5df 100644
--- a/test/builtins/Unit/ucmpti2_test.c
+++ b/test/builtins/Unit/ucmpti2_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- ucmpti2_test.c - Test __ucmpti2 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/udivdi3_test.c b/test/builtins/Unit/udivdi3_test.c
index 5858bc7..bfdd1db 100644
--- a/test/builtins/Unit/udivdi3_test.c
+++ b/test/builtins/Unit/udivdi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- udivdi3_test.c - Test __udivdi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/udivmoddi4_test.c b/test/builtins/Unit/udivmoddi4_test.c
index a5024ba..278b29a 100644
--- a/test/builtins/Unit/udivmoddi4_test.c
+++ b/test/builtins/Unit/udivmoddi4_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- udivmoddi4_test.c - Test __udivmoddi4 -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/udivmodsi4_test.c b/test/builtins/Unit/udivmodsi4_test.c
index 320018c..b390796 100644
--- a/test/builtins/Unit/udivmodsi4_test.c
+++ b/test/builtins/Unit/udivmodsi4_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- udivmodsi4_test.c - Test __udivmodsi4 -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/udivmodti4_test.c b/test/builtins/Unit/udivmodti4_test.c
index 38da855..d022759 100644
--- a/test/builtins/Unit/udivmodti4_test.c
+++ b/test/builtins/Unit/udivmodti4_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- udivmodti4_test.c - Test __udivmodti4 -----------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/udivsi3_test.c b/test/builtins/Unit/udivsi3_test.c
index 7adf30a..f4249f5 100644
--- a/test/builtins/Unit/udivsi3_test.c
+++ b/test/builtins/Unit/udivsi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- udivsi3_test.c - Test __udivsi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/udivti3_test.c b/test/builtins/Unit/udivti3_test.c
index 2db440d..ae64123 100644
--- a/test/builtins/Unit/udivti3_test.c
+++ b/test/builtins/Unit/udivti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- udivti3_test.c - Test __udivti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/umoddi3_test.c b/test/builtins/Unit/umoddi3_test.c
index b1382b6..5c79e56 100644
--- a/test/builtins/Unit/umoddi3_test.c
+++ b/test/builtins/Unit/umoddi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- umoddi3_test.c - Test __umoddi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/umodsi3_test.c b/test/builtins/Unit/umodsi3_test.c
index c430538..2ff1f9e 100644
--- a/test/builtins/Unit/umodsi3_test.c
+++ b/test/builtins/Unit/umodsi3_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===-- umodsi3_test.c - Test __umodsi3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/umodti3_test.c b/test/builtins/Unit/umodti3_test.c
index adfc8eb..0f93175 100644
--- a/test/builtins/Unit/umodti3_test.c
+++ b/test/builtins/Unit/umodti3_test.c
@@ -2,10 +2,9 @@
 // REQUIRES: int128
 //===-- umodti3_test.c - Test __umodti3 -----------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/unorddf2vfp_test.c b/test/builtins/Unit/unorddf2vfp_test.c
index 21938d0..128c1d8 100644
--- a/test/builtins/Unit/unorddf2vfp_test.c
+++ b/test/builtins/Unit/unorddf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- unorddf2vfp_test.c - Test __unorddf2vfp ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/unordsf2vfp_test.c b/test/builtins/Unit/unordsf2vfp_test.c
index 7126652..94f06d8 100644
--- a/test/builtins/Unit/unordsf2vfp_test.c
+++ b/test/builtins/Unit/unordsf2vfp_test.c
@@ -2,10 +2,9 @@
 
 //===-- unordsf2vfp_test.c - Test __unordsf2vfp ---------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
diff --git a/test/builtins/Unit/unordtf2_test.c b/test/builtins/Unit/unordtf2_test.c
index 22907ce..8f5b110 100644
--- a/test/builtins/Unit/unordtf2_test.c
+++ b/test/builtins/Unit/unordtf2_test.c
@@ -1,10 +1,9 @@
 // RUN: %clang_builtins %s %librt -o %t && %run %t
 //===------------ unordtf2_test.c - Test __unordtf2------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //