The operand flag word used in ISD::INLINEASM is an i32 not a pointer. NFC.

[dsanders]

Summary

This is part of the work to support memory constraints that behave
differently to 'm'. The subsequent patches will expand on the existing
encoding (which is a 32-bit int) and as a result in some flag words will no
longer fit into an i16. This problem only affected the MSP430 target which
appears to have 16-bit pointers.

[hfinkel]

LGTM.

lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

for (unsigned i = 0, e = ConstraintOperands.size(); i != e; ++i) {
     case InlineAsm::isOutput: {
       if (OpInfo.ConstraintType != TargetLowering::C_RegisterClass &&
           OpInfo.ConstraintType != TargetLowering::C_Register) {
         // Memory output, or 'other' output (e.g. 'X' constraint).
         assert(OpInfo.isIndirect && "Memory output must be indirect operand");
 
         // Add information to the INLINEASM node to know about this output.
         unsigned OpFlags = InlineAsm::getFlagWord(InlineAsm::Kind_Mem, 1);
-        AsmNodeOperands.push_back(DAG.getTargetConstant(OpFlags,
-                                                        TLI.getPointerTy()));
+        AsmNodeOperands.push_back(DAG.getTargetConstant(OpFlags, MVT::i32));
         AsmNodeOperands.push_back(OpInfo.CallOperand);
         break;
       }
 
       // Otherwise, this is a register or register class output.
 
       // Copy the output from the appropriate register.  Find a register that
       // we can use.
case InlineAsm::isInput: {
 
       if (OpInfo.ConstraintType == TargetLowering::C_Memory) {
         assert(OpInfo.isIndirect && "Operand must be indirect to be a mem!");
         assert(InOperandVal.getValueType() == TLI.getPointerTy() &&
                "Memory operands expect pointer values");
 
         // Add information to the INLINEASM node to know about this input.
         unsigned ResOpType = InlineAsm::getFlagWord(InlineAsm::Kind_Mem, 1);
-        AsmNodeOperands.push_back(DAG.getTargetConstant(ResOpType,
-                                                        TLI.getPointerTy()));
+        AsmNodeOperands.push_back(DAG.getTargetConstant(ResOpType, MVT::i32));
         AsmNodeOperands.push_back(InOperandVal);
         break;
       }
 
       assert((OpInfo.ConstraintType == TargetLowering::C_RegisterClass ||
               OpInfo.ConstraintType == TargetLowering::C_Register) &&
              "Unknown constraint type!");