diff options
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp index 7d451e8f6d0..c0b4d8926a9 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -591,6 +591,16 @@ void CodeGenFunction::StartFunction(GlobalDecl GD, EmitMCountInstrumentation(); PGO.assignRegionCounters(GD); + if (CGM.getPGOData()) { + if (const Decl *D = GD.getDecl()) { + // Turn on InlineHint attribute for hot functions. + if (CGM.getPGOData()->isHotFunction(CGM.getMangledName(GD))) + Fn->addFnAttr(llvm::Attribute::InlineHint); + // Turn on Cold attribute for cold functions. + else if (CGM.getPGOData()->isColdFunction(CGM.getMangledName(GD))) + Fn->addFnAttr(llvm::Attribute::Cold); + } + } if (RetTy->isVoidType()) { // Void type; nothing to return. |
