diff options
Diffstat (limited to 'clang/lib/CodeGen/CGExprComplex.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGExprComplex.cpp | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/clang/lib/CodeGen/CGExprComplex.cpp b/clang/lib/CodeGen/CGExprComplex.cpp index 4700c7eef35..6b7826eef5d 100644 --- a/clang/lib/CodeGen/CGExprComplex.cpp +++ b/clang/lib/CodeGen/CGExprComplex.cpp @@ -582,13 +582,22 @@ ComplexPairTy ComplexExprEmitter::EmitComplexBinOpLibCall(StringRef LibCallName, Op.Ty->castAs<ComplexType>()->getElementType()); // We *must* use the full CG function call building logic here because the - // complex type has special ABI handling. - const CGFunctionInfo &FuncInfo = CGF.CGM.getTypes().arrangeFreeFunctionCall( - Op.Ty, Args, FunctionType::ExtInfo(), RequiredArgs::All); + // complex type has special ABI handling. We also should not forget about + // special calling convention which may be used for compiler builtins. + const CGFunctionInfo &FuncInfo = + CGF.CGM.getTypes().arrangeFreeFunctionCall( + Op.Ty, Args, FunctionType::ExtInfo(/* No CC here - will be added later */), + RequiredArgs::All); llvm::FunctionType *FTy = CGF.CGM.getTypes().GetFunctionType(FuncInfo); - llvm::Constant *Func = CGF.CGM.CreateRuntimeFunction(FTy, LibCallName); + llvm::Constant *Func = CGF.CGM.CreateBuiltinFunction(FTy, LibCallName); + llvm::Instruction *Call; - return CGF.EmitCall(FuncInfo, Func, ReturnValueSlot(), Args).getComplexVal(); + RValue Res = CGF.EmitCall(FuncInfo, Func, ReturnValueSlot(), Args, + nullptr, &Call); + cast<llvm::CallInst>(Call)->setCallingConv(CGF.CGM.getBuiltinCC()); + cast<llvm::CallInst>(Call)->setDoesNotThrow(); + + return Res.getComplexVal(); } /// \brief Lookup the libcall name for a given floating point type complex |
