diff --git a/include/llvm/BinaryFormat/ELF.h b/include/llvm/BinaryFormat/ELF.h
index 8e3860c..5e9bfe7 100644
--- a/include/llvm/BinaryFormat/ELF.h
+++ b/include/llvm/BinaryFormat/ELF.h
@@ -1352,7 +1352,9 @@
   GNU_PROPERTY_STACK_SIZE = 1,
   GNU_PROPERTY_NO_COPY_ON_PROTECTED = 2,
   GNU_PROPERTY_X86_FEATURE_1_AND = 0xc0000002,
+  GNU_PROPERTY_X86_ISA_1_NEEDED = 0xc0008000,
   GNU_PROPERTY_X86_FEATURE_2_NEEDED = 0xc0008001,
+  GNU_PROPERTY_X86_ISA_1_USED = 0xc0010000,
   GNU_PROPERTY_X86_FEATURE_2_USED = 0xc0010001,
 };
 
@@ -1361,6 +1363,31 @@
   GNU_PROPERTY_X86_FEATURE_1_IBT = 1 << 0,
   GNU_PROPERTY_X86_FEATURE_1_SHSTK = 1 << 1,
 
+  GNU_PROPERTY_X86_ISA_1_CMOV = 1 << 0,
+  GNU_PROPERTY_X86_ISA_1_SSE = 1 << 1,
+  GNU_PROPERTY_X86_ISA_1_SSE2 = 1 << 2,
+  GNU_PROPERTY_X86_ISA_1_SSE3 = 1 << 3,
+  GNU_PROPERTY_X86_ISA_1_SSSE3 = 1 << 4,
+  GNU_PROPERTY_X86_ISA_1_SSE4_1 = 1 << 5,
+  GNU_PROPERTY_X86_ISA_1_SSE4_2 = 1 << 6,
+  GNU_PROPERTY_X86_ISA_1_AVX = 1 << 7,
+  GNU_PROPERTY_X86_ISA_1_AVX2 = 1 << 8,
+  GNU_PROPERTY_X86_ISA_1_FMA = 1 << 9,
+  GNU_PROPERTY_X86_ISA_1_AVX512F = 1 << 10,
+  GNU_PROPERTY_X86_ISA_1_AVX512CD = 1 << 11,
+  GNU_PROPERTY_X86_ISA_1_AVX512ER = 1 << 12,
+  GNU_PROPERTY_X86_ISA_1_AVX512PF = 1 << 13,
+  GNU_PROPERTY_X86_ISA_1_AVX512VL = 1 << 14,
+  GNU_PROPERTY_X86_ISA_1_AVX512DQ = 1 << 15,
+  GNU_PROPERTY_X86_ISA_1_AVX512BW = 1 << 16,
+  GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS = 1 << 17,
+  GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW = 1 << 18,
+  GNU_PROPERTY_X86_ISA_1_AVX512_BITALG = 1 << 19,
+  GNU_PROPERTY_X86_ISA_1_AVX512_IFMA = 1 << 20,
+  GNU_PROPERTY_X86_ISA_1_AVX512_VBMI = 1 << 21,
+  GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2 = 1 << 22,
+  GNU_PROPERTY_X86_ISA_1_AVX512_VNNI = 1 << 23,
+
   GNU_PROPERTY_X86_FEATURE_2_X86 = 1 << 0,
   GNU_PROPERTY_X86_FEATURE_2_X87 = 1 << 1,
   GNU_PROPERTY_X86_FEATURE_2_MMX = 1 << 2,
diff --git a/test/tools/llvm-readobj/note-gnu-property.s b/test/tools/llvm-readobj/note-gnu-property.s
index 1d35274..c41c8ac 100644
--- a/test/tools/llvm-readobj/note-gnu-property.s
+++ b/test/tools/llvm-readobj/note-gnu-property.s
@@ -3,15 +3,17 @@
 // RUN: llvm-readobj -elf-output-style GNU --notes %t | FileCheck %s --check-prefix=GNU
 // RUN: llvm-readobj -elf-output-style LLVM --notes %t | FileCheck %s --check-prefix=LLVM
 
-// GNU:      Displaying notes found at file offset 0x00000040 with length 0x000000d8:
+// GNU:      Displaying notes found at file offset 0x00000040 with length 0x000000f8:
 // GNU-NEXT:   Owner                 Data size       Description
-// GNU-NEXT:   GNU                   0x000000c8      NT_GNU_PROPERTY_TYPE_0 (property note)
+// GNU-NEXT:   GNU                   0x000000e8      NT_GNU_PROPERTY_TYPE_0 (property note)
 // GNU-NEXT:     Properties:  stack size: 0x100
 // GNU-NEXT:     stack size: 0x100
 // GNU-NEXT:     no copy on protected
 // GNU-NEXT:     x86 feature: SHSTK
 // GNU-NEXT:     x86 feature: IBT, SHSTK
 // GNU-NEXT:     x86 feature: <None>
+// GNU-NEXT:     x86 ISA needed: CMOV, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, AVX, AVX2, FMA, AVX512F, AVX512CD
+// GNU-NEXT:     x86 ISA used: AVX512ER, AVX512PF, AVX512VL, AVX512DQ, AVX512BW, AVX512_4FMAPS, AVX512_4VNNIW, AVX512_BITALG, AVX512_IFMA, AVX512_VBMI, AVX512_VBMI2, AVX512_VNNI
 // GNU-NEXT:     x86 feature needed: x86, x87
 // GNU-NEXT:     x86 feature used: XSAVEOPT, XSAVEC
 // GNU-NEXT:     <application-specific type 0xfefefefe>
@@ -25,10 +27,10 @@
 // LLVM:      Notes [
 // LLVM-NEXT:   NoteSection {
 // LLVM-NEXT:     Offset: 0x40
-// LLVM-NEXT:     Size: 0xD8
+// LLVM-NEXT:     Size: 0xF8
 // LLVM-NEXT:     Note {
 // LLVM-NEXT:       Owner: GNU
-// LLVM-NEXT:       Data size: 0xC8
+// LLVM-NEXT:       Data size: 0xE8
 // LLVM-NEXT:       Type: NT_GNU_PROPERTY_TYPE_0 (property note)
 // LLVM-NEXT:       Property [
 // LLVM-NEXT:         stack size: 0x100
@@ -37,6 +39,8 @@
 // LLVM-NEXT:         x86 feature: SHSTK
 // LLVM-NEXT:         x86 feature: IBT, SHSTK
 // LLVM-NEXT:         x86 feature: <None>
+// LLVM-NEXT:         x86 ISA needed: CMOV, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, AVX, AVX2, FMA, AVX512F, AVX512CD
+// LLVM-NEXT:         x86 ISA used: AVX512ER, AVX512PF, AVX512VL, AVX512DQ, AVX512BW, AVX512_4FMAPS, AVX512_4VNNIW, AVX512_BITALG, AVX512_IFMA, AVX512_VBMI, AVX512_VBMI2, AVX512_VNNI
 // LLVM-NEXT:         x86 feature needed: x86, x87
 // LLVM-NEXT:         x86 feature used: XSAVEOPT, XSAVEC
 // LLVM-NEXT:         <application-specific type 0xfefefefe>
@@ -91,6 +95,16 @@
   .long 0           /* Empty flags, not an error */
   .p2align 3        /* Align to 8 byte for 64 bit */
 
+  .long 0xc0008000         /* Type: GNU_PROPERTY_X86_ISA_1_NEEDED */
+  .long 4                  /* Data size */
+  .long 0x00000fff         /* CMOV, ... */
+  .p2align 3               /* Align to 8 byte for 64 bit */
+
+  .long 0xc0010000         /* Type: GNU_PROPERTY_X86_ISA_1_USED */
+  .long 4                  /* Data size */
+  .long 0x00fff000         /* AVX512_ER, ... */
+  .p2align 3               /* Align to 8 byte for 64 bit */
+
   .long 0xc0008001         /* Type: GNU_PROPERTY_X86_FEATURE_2_NEEDED */
   .long 4                  /* Data size */
   .long 0x00000003         /* X86 X87 */
diff --git a/tools/llvm-readobj/ELFDumper.cpp b/tools/llvm-readobj/ELFDumper.cpp
index aaac9a5..dc6e448 100644
--- a/tools/llvm-readobj/ELFDumper.cpp
+++ b/tools/llvm-readobj/ELFDumper.cpp
@@ -3694,6 +3694,47 @@
     if (PrData)
       OS << format("<unknown flags: 0x%x>", PrData);
     return OS.str();
+  case GNU_PROPERTY_X86_ISA_1_NEEDED:
+  case GNU_PROPERTY_X86_ISA_1_USED:
+    OS << "x86 ISA "
+       << (Type == GNU_PROPERTY_X86_ISA_1_NEEDED ? "needed: " : "used: ");
+    if (DataSize != 4) {
+      OS << format("<corrupt length: 0x%x>", DataSize);
+      return OS.str();
+    }
+    PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
+    if (PrData == 0) {
+      OS << "<None>";
+      return OS.str();
+    }
+    DumpBit(GNU_PROPERTY_X86_ISA_1_CMOV, "CMOV");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_SSE, "SSE");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_SSE2, "SSE2");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_SSE3, "SSE3");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_SSSE3, "SSSE3");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_1, "SSE4_1");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_2, "SSE4_2");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX, "AVX");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX2, "AVX2");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_FMA, "FMA");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512F, "AVX512F");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512CD, "AVX512CD");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512ER, "AVX512ER");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512PF, "AVX512PF");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512VL, "AVX512VL");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512DQ, "AVX512DQ");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512BW, "AVX512BW");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS, "AVX512_4FMAPS");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW, "AVX512_4VNNIW");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_BITALG, "AVX512_BITALG");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_IFMA, "AVX512_IFMA");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI, "AVX512_VBMI");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2, "AVX512_VBMI2");
+    DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VNNI, "AVX512_VNNI");
+    if (PrData)
+      OS << format("<unknown flags: 0x%x>", PrData);
+    return OS.str();
+    break;
   case GNU_PROPERTY_X86_FEATURE_2_NEEDED:
   case GNU_PROPERTY_X86_FEATURE_2_USED:
     OS << "x86 feature "