Merging r354633:
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r354633 | rsmith | 2019-02-21 15:04:35 -0800 (Thu, 21 Feb 2019) | 3 lines
Use _Q as MS ABI mangling for char8_t.
Thanks to Yuriy Solodkyy for letting us know the mangling here.
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_80@364487 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index 92e9679..896c4a1 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/lib/AST/MicrosoftMangle.cpp
@@ -1937,8 +1937,9 @@
// ::= _M # unsigned __int128
// ::= _N # bool
// _O # <array in parameter>
- // ::= _T # __float80 (Intel)
+ // ::= _Q # char8_t
// ::= _S # char16_t
+ // ::= _T # __float80 (Intel)
// ::= _U # char32_t
// ::= _W # wchar_t
// ::= _Z # __float80 (Digital Mars)
@@ -1999,6 +2000,9 @@
case BuiltinType::Bool:
Out << "_N";
break;
+ case BuiltinType::Char8:
+ Out << "_Q";
+ break;
case BuiltinType::Char16:
Out << "_S";
break;
@@ -2094,7 +2098,6 @@
case BuiltinType::SatUShortFract:
case BuiltinType::SatUFract:
case BuiltinType::SatULongFract:
- case BuiltinType::Char8:
case BuiltinType::Float128: {
DiagnosticsEngine &Diags = Context.getDiags();
unsigned DiagID = Diags.getCustomDiagID(
diff --git a/test/CodeGenCXX/char8_t.cpp b/test/CodeGenCXX/char8_t.cpp
index f24f12d..1016d63 100644
--- a/test/CodeGenCXX/char8_t.cpp
+++ b/test/CodeGenCXX/char8_t.cpp
@@ -1,9 +1,11 @@
-// RUN: %clang_cc1 -std=c++17 -emit-llvm -fchar8_t -triple x86_64-linux %s -o - | FileCheck %s
-// RUN: %clang_cc1 -std=c++17 -emit-llvm -fchar8_t -triple x86_64-windows %s -o - -verify
+// RUN: %clang_cc1 -std=c++17 -emit-llvm -fchar8_t -triple x86_64-linux %s -o - | FileCheck %s --check-prefix=ITANIUM
+// RUN: %clang_cc1 -std=c++17 -emit-llvm -fchar8_t -triple x86_64-windows %s -o - | FileCheck %s --check-prefix=MSABI
-// CHECK: define void @_Z1fDu(
-void f(char8_t c) {} // expected-error {{cannot mangle this built-in char8_t type yet}}
+// ITANIUM: define void @_Z1fDu(
+// MSABI: define {{.*}}void @"?f@@YAX_Q@Z"(
+void f(char8_t c) {}
-// CHECK: define weak_odr void @_Z1gIiEvDTplplcvT__ELA4_KDuELDu114EE
+// ITANIUM: define weak_odr void @_Z1gIiEvDTplplcvT__ELA4_KDuELDu114EE(
+// MSABI: define weak_odr {{.*}}void @"??$g@H@@YAXPEB_Q@Z"(
template<typename T> void g(decltype(T() + u8"foo" + u8'r')) {}
template void g<int>(const char8_t*);
