Index: lib/CodeGen/IslNodeBuilder.cpp
===================================================================
--- lib/CodeGen/IslNodeBuilder.cpp
+++ lib/CodeGen/IslNodeBuilder.cpp
@@ -1028,7 +1028,8 @@
 
   auto *Ptr = AddressValue;
   auto Name = Ptr->getName();
-  Ptr = Builder.CreatePointerCast(Ptr, Ty->getPointerTo(), Name + ".cast");
+  auto AS = Ptr->getType()->getPointerAddressSpace();
+  Ptr = Builder.CreatePointerCast(Ptr, Ty->getPointerTo(AS), Name + ".cast");
   PreloadVal = Builder.CreateLoad(Ptr, Name + ".load");
   if (LoadInst *PreloadInst = dyn_cast<LoadInst>(PreloadVal))
     PreloadInst->setAlignment(dyn_cast<LoadInst>(AccInst)->getAlignment());