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remove dead code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23749 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -233,7 +233,7 @@ static bool isRotateAndMask(SDNode *N, unsigned Mask, bool IsShiftMask,
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if (IsShiftMask) Mask = Mask << Shift;
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// determine which bits are made indeterminant by shift
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Indeterminant = ~(0xFFFFFFFFu << Shift);
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} else if (Opcode == ISD::SRA || Opcode == ISD::SRL) {
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} else if (Opcode == ISD::SRL) {
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// apply shift right to mask if it comes first
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if (IsShiftMask) Mask = Mask >> Shift;
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// determine which bits are made indeterminant by shift
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@ -1277,13 +1277,8 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) {
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return SDOperand(N, 0);
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}
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case ISD::SRA: {
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unsigned Imm, SH, MB, ME;
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if (0 &&isOpcWithIntImmediate(N->getOperand(0).Val, ISD::AND, Imm) &&
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isRotateAndMask(N, Imm, true, SH, MB, ME))
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CurDAG->SelectNodeTo(N, PPC::RLWINM, MVT::i32,
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Select(N->getOperand(0).getOperand(0)),
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getI32Imm(SH), getI32Imm(MB), getI32Imm(ME));
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else if (isIntImmediate(N->getOperand(1), Imm))
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unsigned Imm;
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if (isIntImmediate(N->getOperand(1), Imm))
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CurDAG->SelectNodeTo(N, PPC::SRAWI, MVT::i32, Select(N->getOperand(0)),
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getI32Imm(Imm));
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else
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