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/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 7820509..a39e453 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -12594,12 +12594,16 @@
/// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
/// vector. If it is invalid, don't add anything to Ops.
void X86TargetLowering::LowerAsmOperandForConstraint(SDValue Op,
- char Constraint,
+ std::string &Constraint,
std::vector<SDValue>&Ops,
SelectionDAG &DAG) const {
SDValue Result(0, 0);
- switch (Constraint) {
+ // Only support length 1 constraints for now.
+ if (Constraint.length() > 1) return;
+
+ char ConstraintLetter = Constraint[0];
+ switch (ConstraintLetter) {
default: break;
case 'I':
if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) {