[PATCH] D132742: [X86][BF16] Add type mangling for Windows

[Phoebe Wang via Phabricator via cfe-commits]

pengfei created this revision.
pengfei added reviewers: FreddyYe, LuoYuanke, craig.topper, RKSimon, skan.
Herald added a subscriber: StephenFan.
Herald added a project: All.
pengfei requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D132742

Files:
  clang/lib/AST/MicrosoftMangle.cpp
  clang/test/CodeGen/X86/bfloat-mangle.cpp


Index: clang/test/CodeGen/X86/bfloat-mangle.cpp
===================================================================
--- clang/test/CodeGen/X86/bfloat-mangle.cpp
+++ clang/test/CodeGen/X86/bfloat-mangle.cpp
@@ -1,5 +1,8 @@
-// RUN: %clang_cc1 -triple i386-unknown-unknown -target-feature +sse2 -emit-llvm -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-feature +sse2 -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple i386-unknown-unknown -target-feature +sse2 -emit-llvm -o - %s | FileCheck %s --check-prefixes=LINUX
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -target-feature +sse2 -emit-llvm -o - %s | FileCheck %s --check-prefixes=LINUX
+// RUN: %clang_cc1 -triple i386-windows-msvc -target-feature +sse2 -emit-llvm -o - %s | FileCheck %s --check-prefixes=WINDOWS
+// RUN: %clang_cc1 -triple x86_64-windows-msvc -target-feature +sse2 -emit-llvm -o - %s | FileCheck %s --check-prefixes=WINDOWS
 
-// CHECK: define {{.*}}void @_Z3foou6__bf16(bfloat noundef %b)
+// LINUX: define {{.*}}void @_Z3foou6__bf16(bfloat noundef %b)
+// WINDOWS: define {{.*}}void @"?foo@@YAXU__bf16 at __clang@@@Z"(bfloat noundef %b)
 void foo(__bf16 b) {}
Index: clang/lib/AST/MicrosoftMangle.cpp
===================================================================
--- clang/lib/AST/MicrosoftMangle.cpp
+++ clang/lib/AST/MicrosoftMangle.cpp
@@ -2469,6 +2469,10 @@
       Out << "$halff@";
     break;
 
+  case BuiltinType::BFloat16:
+    mangleArtificialTagType(TTK_Struct, "__bf16", {"__clang"});
+    break;
+
 #define SVE_TYPE(Name, Id, SingletonId) \
   case BuiltinType::Id:
 #include "clang/Basic/AArch64SVEACLETypes.def"
@@ -2501,7 +2505,6 @@
   case BuiltinType::SatUShortFract:
   case BuiltinType::SatUFract:
   case BuiltinType::SatULongFract:
-  case BuiltinType::BFloat16:
   case BuiltinType::Ibm128:
   case BuiltinType::Float128: {
     DiagnosticsEngine &Diags = Context.getDiags();


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