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| author | Aaron Ballman <aaron@aaronballman.com> | 2014-02-22 16:59:24 +0000 |
|---|---|---|
| committer | Aaron Ballman <aaron@aaronballman.com> | 2014-02-22 16:59:24 +0000 |
| commit | 7c19ab17c722288f47dfc887dec0405814bf304d (patch) | |
| tree | a90abcc93e28e1d24c4025be0d2ba931b264d6c5 /clang/lib | |
| parent | 9d2c15eff7edd220a3246ebedd2e502051e49844 (diff) | |
| download | bcm5719-llvm-7c19ab17c722288f47dfc887dec0405814bf304d.tar.gz bcm5719-llvm-7c19ab17c722288f47dfc887dec0405814bf304d.zip | |
Exposing the noduplicate attribute within Clang, which marks functions so that the optimizer does not duplicate code.
Patch thanks to Marcello Maggioni!
llvm-svn: 201941
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/CodeGen/CGCall.cpp | 2 | ||||
| -rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 2 | ||||
| -rw-r--r-- | clang/lib/Sema/SemaDeclAttr.cpp | 2 |
3 files changed, 6 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp index a9caa88706a..a21e4783b60 100644 --- a/clang/lib/CodeGen/CGCall.cpp +++ b/clang/lib/CodeGen/CGCall.cpp @@ -1052,6 +1052,8 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI, FuncAttrs.addAttribute(llvm::Attribute::NoUnwind); if (TargetDecl->hasAttr<NoReturnAttr>()) FuncAttrs.addAttribute(llvm::Attribute::NoReturn); + if (TargetDecl->hasAttr<NoDuplicateAttr>()) + FuncAttrs.addAttribute(llvm::Attribute::NoDuplicate); if (const FunctionDecl *Fn = dyn_cast<FunctionDecl>(TargetDecl)) { const FunctionProtoType *FPT = Fn->getType()->getAs<FunctionProtoType>(); diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index bbf5a730f07..e6798e49a85 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -631,6 +631,8 @@ 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<NoDuplicateAttr>()) { + B.addAttribute(llvm::Attribute::NoDuplicate); } else if (D->hasAttr<NoInlineAttr>()) { B.addAttribute(llvm::Attribute::NoInline); } else if ((D->hasAttr<AlwaysInlineAttr>() || diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp index 29e4bb7b3e2..1de06af775d 100644 --- a/clang/lib/Sema/SemaDeclAttr.cpp +++ b/clang/lib/Sema/SemaDeclAttr.cpp @@ -4237,6 +4237,8 @@ static void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, handleSimpleAttribute<PureAttr>(S, D, Attr); break; case AttributeList::AT_Cleanup: handleCleanupAttr (S, D, Attr); break; case AttributeList::AT_NoDebug: handleNoDebugAttr (S, D, Attr); break; + case AttributeList::AT_NoDuplicate: + handleSimpleAttribute<NoDuplicateAttr>(S, D, Attr); break; case AttributeList::AT_NoInline: handleSimpleAttribute<NoInlineAttr>(S, D, Attr); break; case AttributeList::AT_NoInstrumentFunction: // Interacts with -pg. |
