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/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index a5a3b01..5031a79 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -5439,10 +5439,16 @@
/// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
/// vector. If it is invalid, don't add anything to Ops.
-void PPCTargetLowering::LowerAsmOperandForConstraint(SDValue Op, char Letter,
+void PPCTargetLowering::LowerAsmOperandForConstraint(SDValue Op,
+ std::string &Constraint,
std::vector<SDValue>&Ops,
SelectionDAG &DAG) const {
SDValue Result(0,0);
+
+ // Only support length 1 constraints.
+ if (Constraint.length() > 1) return;
+
+ char Letter = Constraint[0];
switch (Letter) {
default: break;
case 'I':
@@ -5498,7 +5504,7 @@
}
// Handle standard constraint letters.
- TargetLowering::LowerAsmOperandForConstraint(Op, Letter, Ops, DAG);
+ TargetLowering::LowerAsmOperandForConstraint(Op, Constraint, Ops, DAG);
}
// isLegalAddressingMode - Return true if the addressing mode represented
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index 64a57a1..986b4e7 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -328,7 +328,7 @@
/// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
/// vector. If it is invalid, don't add anything to Ops.
virtual void LowerAsmOperandForConstraint(SDValue Op,
- char ConstraintLetter,
+ std::string &Constraint,
std::vector<SDValue> &Ops,
SelectionDAG &DAG) const;