Fix windows build after 7c59e80 (#12594)

Author: againull

libclc/utils/libclc-remangler/LibclcRemangler.cpp

@@ -100,7 +100,7 @@ static cl::opt<bool> TestRun("t", cl::desc("Enable test run"), cl::init(false),
 static cl::extrahelp CommonHelp(CommonOptionsParser::HelpMessage);
 
 namespace {
-inline StringRef asRef(std::string_view S) { return {S.begin(), S.size()}; }
+inline StringRef asRef(std::string_view S) { return {&*S.begin(), S.size()}; }
 class BumpPointerAllocator {
 public:
   BumpPointerAllocator()

llvm/lib/SYCLLowerIR/ESIMD/LowerESIMD.cpp

@@ -804,7 +804,7 @@ static APInt parseTemplateArg(id::FunctionEncoding *FE, unsigned int N,
     if (Conv == ESIMDIntrinDesc::GenXArgConversion::NONE && TyStr.size() != 0)
       // Overwrite Ty with IntegerLiteral's size
       Ty =
-          parsePrimitiveTypeString(StringRef(TyStr.begin(), TyStr.size()), Ctx);
+          parsePrimitiveTypeString(StringRef(&*TyStr.begin(), TyStr.size()), Ctx);
     Val = ValL->getValue();
     break;
   }
@@ -821,7 +821,7 @@ static APInt parseTemplateArg(id::FunctionEncoding *FE, unsigned int N,
   default:
     llvm_unreachable_internal("bad esimd intrinsic template parameter");
   }
-  return APInt(Ty->getPrimitiveSizeInBits(), StringRef(Val.begin(), Val.size()),
+  return APInt(Ty->getPrimitiveSizeInBits(), StringRef(&*Val.begin(), Val.size()),
                10);
 }
 
@@ -1496,7 +1496,7 @@ static void translateESIMDIntrinsicCall(CallInst &CI) {
   auto PrefLen = isDevicelibFunction(F->getName())
                      ? 0
                      : StringRef(ESIMD_INTRIN_PREF1).size();
-  StringRef BaseName(BaseNameV.begin() + PrefLen, BaseNameV.size() - PrefLen);
+  StringRef BaseName(&*BaseNameV.begin() + PrefLen, BaseNameV.size() - PrefLen);
   const auto &Desc = getIntrinDesc(BaseName);
   if (!Desc.isValid()) // TODO remove this once all intrinsics are supported
     return;