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[MSExtensions] Add support for __forceinline.

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__forceinline is a combination of the inline keyword and __attribute__((always_inline))

llvm-svn: 158653
This commit is contained in:
Michael J. Spencer
2012-06-18 07:00:48 +00:00
parent 7b3f322517
commit f97bd8c9cb
5 changed files with 38 additions and 5 deletions
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4
clang/lib/CodeGen/CodeGenModule.cpp
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@@ -518,7 +518,7 @@ void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D,
F->addFnAttr(llvm::Attribute::NoInline);
// (noinline wins over always_inline, and we can't specify both in IR)
if (D->hasAttr<AlwaysInlineAttr>() &&
if ((D->hasAttr<AlwaysInlineAttr>() || D->hasAttr<ForceInlineAttr>()) &&
!F->hasFnAttr(llvm::Attribute::NoInline))
F->addFnAttr(llvm::Attribute::AlwaysInline);
@@ -935,7 +935,7 @@ CodeGenModule::shouldEmitFunction(const FunctionDecl *F) {
if (getFunctionLinkage(F) != llvm::Function::AvailableExternallyLinkage)
return true;
if (CodeGenOpts.OptimizationLevel == 0 &&
!F->hasAttr<AlwaysInlineAttr>())
!F->hasAttr<AlwaysInlineAttr>() && !F->hasAttr<ForceInlineAttr>())
return false;
// PR9614. Avoid cases where the source code is lying to us. An available
// externally function should have an equivalent function somewhere else,