bool ARMDAGToDAGISel::SelectT2AddrModeImm12(SDValue Op, SDValue N,
SDValue &Base, SDValue &OffImm) {
// Match simple R + imm12 operands.
- if (N.getOpcode() != ISD::ADD)
+
+ // Match frame index...
+ if (N.getOpcode() != ISD::ADD) {
+ if (N.getOpcode() == ISD::FrameIndex) {
+ int FI = cast<FrameIndexSDNode>(N)->getIndex();
+ Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
+ OffImm = CurDAG->getTargetConstant(0, MVT::i32);
+ return true;
+ }
return false;
+ }
if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
int RHSC = (int)RHS->getZExtValue();
if (N.getOpcode() != ISD::ADD && N.getOpcode() != ISD::SUB) {
Base = N;
if (N.getOpcode() == ISD::FrameIndex) {
- int FI = cast<FrameIndexSDNode>(N)->getIndex();
- Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
+ return false; // we want to select t2LDRri12 instead
} else if (N.getOpcode() == ARMISD::Wrapper) {
Base = N.getOperand(0);
if (Base.getOpcode() == ISD::TargetConstantPool)