diff options
Diffstat (limited to 'clang/lib/CodeGen/CGExpr.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGExpr.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp index 8c867d9437f..d960503e57e 100644 --- a/clang/lib/CodeGen/CGExpr.cpp +++ b/clang/lib/CodeGen/CGExpr.cpp @@ -711,6 +711,29 @@ RValue CodeGenFunction::EmitCallExpr(llvm::Value *Callee, QualType FnType, } llvm::CallInst *CI = Builder.CreateCall(Callee,&Args[0],&Args[0]+Args.size()); + + // Note that there is parallel code in SetFunctionAttributes in CodeGenModule + llvm::SmallVector<llvm::ParamAttrsWithIndex, 8> ParamAttrList; + if (hasAggregateLLVMType(ResultType)) + ParamAttrList.push_back( + llvm::ParamAttrsWithIndex::get(1, llvm::ParamAttr::StructRet)); + unsigned increment = hasAggregateLLVMType(ResultType) ? 2 : 1; + for (unsigned i = 0; i < NumArgs; i++) { + QualType ParamType = ArgExprs[i]->getType(); + unsigned ParamAttrs = 0; + if (ParamType->isRecordType()) + ParamAttrs |= llvm::ParamAttr::ByVal; + if (ParamType->isSignedIntegerType() && ParamType->isPromotableIntegerType()) + ParamAttrs |= llvm::ParamAttr::SExt; + if (ParamType->isUnsignedIntegerType() && ParamType->isPromotableIntegerType()) + ParamAttrs |= llvm::ParamAttr::ZExt; + if (ParamAttrs) + ParamAttrList.push_back(llvm::ParamAttrsWithIndex::get(i + increment, + ParamAttrs)); + } + CI->setParamAttrs(llvm::PAListPtr::get(ParamAttrList.begin(), + ParamAttrList.size())); + if (const llvm::Function *F = dyn_cast<llvm::Function>(Callee)) CI->setCallingConv(F->getCallingConv()); if (CI->getType() != llvm::Type::VoidTy) |
