diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index c8898ce196c1..6a603ce2502b 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -55,6 +55,7 @@
 #include "llvm/Analysis/TargetLibraryInfo.h"
 #include "llvm/Frontend/OpenMP/OMPIRBuilder.h"
 #include "llvm/IR/AttributeMask.h"
+#include "llvm/IR/Attributes.h"
 #include "llvm/IR/CallingConv.h"
 #include "llvm/IR/DataLayout.h"
 #include "llvm/IR/Intrinsics.h"
@@ -4547,6 +4548,15 @@ llvm::Constant *CodeGenModule::GetOrCreateLLVMFunction(

     if ((isa<llvm::Function>(Entry) || isa<llvm::GlobalAlias>(Entry)) &&
         (Entry->getValueType() == Ty)) {
+		if (IsForDefinition) {
+			llvm::Function *Func = cast<llvm::Function>(Entry);
+			llvm::AttributeList AttributeList = Func->getAttributes();
+			if (D)
+				SetFunctionAttributes(GD, Func, false, IsThunk);
+			for (auto Attribute : AttributeList.getFnAttrs()) {
+				Func->addFnAttr(Attribute);
+			}
+		}
       return Entry;
     }