Have LowerOperandForConstraint handle multiple character constraints.

Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132510 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 9a656a7..6da80db 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5936,7 +5936,7 @@
 
       if (OpInfo.ConstraintType == TargetLowering::C_Other) {
         std::vector<SDValue> Ops;
-        TLI.LowerAsmOperandForConstraint(InOperandVal, OpInfo.ConstraintCode[0],
+        TLI.LowerAsmOperandForConstraint(InOperandVal, OpInfo.ConstraintCode,
                                          Ops, DAG);
         if (Ops.empty())
           report_fatal_error("Invalid operand for inline asm constraint '" +