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| author | Paul Robinson <paul_robinson@playstation.sony.com> | 2014-03-31 22:29:15 +0000 |
|---|---|---|
| committer | Paul Robinson <paul_robinson@playstation.sony.com> | 2014-03-31 22:29:15 +0000 |
| commit | f067435026123765bcba8094676c813a69d28a88 (patch) | |
| tree | b75e5a1886f665e3016bce5a6adc0fc737a38147 /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | e117992f00c4cf16929b6a65de8eeab15f8942ad (diff) | |
| download | llvm-f067435026123765bcba8094676c813a69d28a88.zip llvm-f067435026123765bcba8094676c813a69d28a88.tar.gz llvm-f067435026123765bcba8094676c813a69d28a88.tar.bz2 | |
Implement the 'optnone' attribute, which suppresses most optimizations
on a function.
llvm-svn: 205255
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index a6a42f0..89d177f 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -660,6 +660,10 @@ void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D, // Naked implies noinline: we should not be inlining such functions. B.addAttribute(llvm::Attribute::Naked); B.addAttribute(llvm::Attribute::NoInline); + } else if (D->hasAttr<OptimizeNoneAttr>()) { + // OptimizeNone implies noinline; we should not be inlining such functions. + B.addAttribute(llvm::Attribute::OptimizeNone); + B.addAttribute(llvm::Attribute::NoInline); } else if (D->hasAttr<NoDuplicateAttr>()) { B.addAttribute(llvm::Attribute::NoDuplicate); } else if (D->hasAttr<NoInlineAttr>()) { @@ -679,6 +683,12 @@ void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D, if (D->hasAttr<MinSizeAttr>()) B.addAttribute(llvm::Attribute::MinSize); + if (D->hasAttr<OptimizeNoneAttr>()) { + // OptimizeNone wins over OptimizeForSize and MinSize. + B.removeAttribute(llvm::Attribute::OptimizeForSize); + B.removeAttribute(llvm::Attribute::MinSize); + } + if (LangOpts.getStackProtector() == LangOptions::SSPOn) B.addAttribute(llvm::Attribute::StackProtect); else if (LangOpts.getStackProtector() == LangOptions::SSPStrong) |