diff options
Diffstat (limited to 'llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp | 37 |
1 files changed, 11 insertions, 26 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp index a796431ae78..6abc097c4c4 100644 --- a/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -849,13 +849,17 @@ bool ARMDAGToDAGISel::SelectAddrMode1(SDOperand Op, case ISD::Constant: { uint32_t val = cast<ConstantSDNode>(N)->getValue(); if(!isRotInt8Immediate(val)) { - if (isRotInt8Immediate(~val)) - return false; //use MVN - Constant *C = ConstantInt::get(Type::UIntTy, val); - int alignment = 2; - SDOperand Addr = CurDAG->getTargetConstantPool(C, MVT::i32, alignment); - SDOperand Z = CurDAG->getTargetConstant(0, MVT::i32); - SDNode *n = CurDAG->getTargetNode(ARM::LDR, MVT::i32, Addr, Z); + SDOperand Z = CurDAG->getTargetConstant(0, MVT::i32); + SDNode *n; + if (isRotInt8Immediate(~val)) { + SDOperand C = CurDAG->getTargetConstant(~val, MVT::i32); + n = CurDAG->getTargetNode(ARM::MVN, MVT::i32, C, Z, Z); + } else { + Constant *C = ConstantInt::get(Type::UIntTy, val); + int alignment = 2; + SDOperand Addr = CurDAG->getTargetConstantPool(C, MVT::i32, alignment); + n = CurDAG->getTargetNode(ARM::LDR, MVT::i32, Addr, Z); + } Arg = SDOperand(n, 0); } else Arg = CurDAG->getTargetConstant(val, MVT::i32); @@ -887,25 +891,6 @@ bool ARMDAGToDAGISel::SelectAddrMode1(SDOperand Op, return true; } -bool ARMDAGToDAGISel::SelectAddrMode1a(SDOperand Op, - SDOperand N, - SDOperand &Arg, - SDOperand &Shift, - SDOperand &ShiftType) { - if (N.getOpcode() != ISD::Constant) - return false; - - uint32_t val = ~cast<ConstantSDNode>(N)->getValue(); - if(!isRotInt8Immediate(val)) - return false; - - Arg = CurDAG->getTargetConstant(val, MVT::i32); - Shift = CurDAG->getTargetConstant(0, MVT::i32); - ShiftType = CurDAG->getTargetConstant(ARMShift::LSL, MVT::i32); - - return true; -} - bool ARMDAGToDAGISel::SelectAddrMode2(SDOperand Op, SDOperand N, SDOperand &Arg, SDOperand &Offset) { //TODO: complete and cleanup! |
