Fix CodeGen for different size address space GEPs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193111 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 2dee377..625bc16 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3229,10 +3229,12 @@
 }
 
 void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
-  SDValue N = getValue(I.getOperand(0));
+  Value *Op0 = I.getOperand(0);
   // Note that the pointer operand may be a vector of pointers. Take the scalar
   // element which holds a pointer.
-  Type *Ty = I.getOperand(0)->getType()->getScalarType();
+  Type *Ty = Op0->getType()->getScalarType();
+  unsigned AS = Ty->getPointerAddressSpace();
+  SDValue N = getValue(Op0);
 
   for (GetElementPtrInst::const_op_iterator OI = I.op_begin()+1, E = I.op_end();
        OI != E; ++OI) {
@@ -3248,10 +3250,6 @@
 
       Ty = StTy->getElementType(Field);
     } else {
-      uint32_t AS = 0;
-      if (PointerType *PtrType = dyn_cast<PointerType>(Ty)) {
-        AS = PtrType->getAddressSpace();
-      }
       Ty = cast<SequentialType>(Ty)->getElementType();
 
       // If this is a constant subscript, handle it quickly.