1 files changed, 21 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp
index 89ab9abc7dad..d67d6abe93c9 100644
--- a/clang/lib/CodeGen/CGExprScalar.cpp
+++ b/clang/lib/CodeGen/CGExprScalar.cpp
@@ -486,6 +486,8 @@ public:
     return CGF.EmitPseudoObjectRValue(E).getScalarVal();
   }
 
+  Value *VisitSYCLUniqueStableNameExpr(SYCLUniqueStableNameExpr *E);
+
   Value *VisitOpaqueValueExpr(OpaqueValueExpr *E) {
     if (E->isGLValue())
       return EmitLoadOfLValue(CGF.getOrCreateOpaqueLValueMapping(E),
@@ -1581,6 +1583,25 @@ Value *ScalarExprEmitter::VisitExpr(Expr *E) {
   return llvm::UndefValue::get(CGF.ConvertType(E->getType()));
 }
 
+Value *
+ScalarExprEmitter::VisitSYCLUniqueStableNameExpr(SYCLUniqueStableNameExpr *E) {
+  ASTContext &Context = CGF.getContext();
+  llvm::Optional<LangAS> GlobalAS =
+      Context.getTargetInfo().getConstantAddressSpace();
+  llvm::Constant *GlobalConstStr = Builder.CreateGlobalStringPtr(
+      E->ComputeName(Context), "__usn_str",
+      static_cast<unsigned>(GlobalAS.getValueOr(LangAS::Default)));
+
+  unsigned ExprAS = Context.getTargetAddressSpace(E->getType());
+
+  if (GlobalConstStr->getType()->getPointerAddressSpace() == ExprAS)
+    return GlobalConstStr;
+
+  llvm::Type *EltTy = GlobalConstStr->getType()->getPointerElementType();
+  llvm::PointerType *NewPtrTy = llvm::PointerType::get(EltTy, ExprAS);
+  return Builder.CreateAddrSpaceCast(GlobalConstStr, NewPtrTy, "usn_addr_cast");
+}
+
 Value *ScalarExprEmitter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
   // Vector Mask Case
   if (E->getNumSubExprs() == 2) {