Emit reloc.none instinsic with metdata string arg

Author: mysterymath

llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp

@@ -3971,11 +3971,12 @@ static Value *optimizeModularFormat(CallInst *CI, IRBuilderBase &B) {
   DenseSet<StringRef> Aspects(llvm::from_range,
                               ArrayRef<StringRef>(Args).drop_front(4));
   Module *M = CI->getModule();
+  LLVMContext &Ctx = M->getContext();
   Function *Callee = CI->getCalledFunction();
   FunctionCallee ModularFn =
       M->getOrInsertFunction(FnName, Callee->getFunctionType(),
                              Callee->getAttributes().removeFnAttribute(
-                                 M->getContext(), "modular-format"));
+                                 Ctx, "modular-format"));
   CallInst *New = cast<CallInst>(CI->clone());
   New->setCalledFunction(ModularFn);
   New->removeFnAttr("modular-format");
@@ -3985,11 +3986,10 @@ static Value *optimizeModularFormat(CallInst *CI, IRBuilderBase &B) {
     SmallString<20> Name = ImplName;
     Name += '_';
     Name += Aspect;
-    Constant *Sym =
-        M->getOrInsertGlobal(Name, Type::getInt8Ty(M->getContext()));
     Function *RelocNoneFn =
         Intrinsic::getOrInsertDeclaration(M, Intrinsic::reloc_none);
-    B.CreateCall(RelocNoneFn, {Sym});
+    B.CreateCall(RelocNoneFn,
+                 {MetadataAsValue::get(Ctx, MDString::get(Ctx, Name))});
   };
 
   if (Aspects.contains("float")) {