diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/BuildLibCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/BuildLibCalls.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp index beb3351..1e21a2f 100644 --- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp @@ -1240,6 +1240,13 @@ static void setArgExtAttr(Function &F, unsigned ArgNo, F.addParamAttr(ArgNo, ExtAttr); } +static void setRetExtAttr(Function &F, + const TargetLibraryInfo &TLI, bool Signed = true) { + Attribute::AttrKind ExtAttr = TLI.getExtAttrForI32Return(Signed); + if (ExtAttr != Attribute::None && !F.hasRetAttribute(ExtAttr)) + F.addRetAttr(ExtAttr); +} + // Modeled after X86TargetLowering::markLibCallAttributes. static void markRegisterParameterAttributes(Function *F) { if (!F->arg_size() || F->isVarArg()) @@ -1315,6 +1322,8 @@ FunctionCallee llvm::getOrInsertLibFunc(Module *M, const TargetLibraryInfo &TLI, // on any target: A size_t argument (which may be an i32 on some targets) // should not trigger the assert below. case LibFunc_bcmp: + setRetExtAttr(*F, TLI); + break; case LibFunc_calloc: case LibFunc_fwrite: case LibFunc_malloc: |