diff --git a/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp b/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
--- a/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
@@ -83,6 +83,11 @@
                                const FuncInfoTy &FuncInfo) const {
   auto &Flags = Arg.Flags[0];
   const AttributeList &Attrs = FuncInfo.getAttributes();
+  if (Arg.Ty->isPointerTy()) {
+    Flags.setPointer();
+    Flags.setPointerAddrSpace(
+        cast<PointerType>(Arg.Ty)->getAddressSpace());
+  }
   if (Attrs.hasAttribute(OpIdx, Attribute::ZExt))
     Flags.setZExt();
   if (Attrs.hasAttribute(OpIdx, Attribute::SExt))