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remove dead code

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23749 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-10-15 21:40:12 +00:00
parent 7e82f1322c
commit 651dea74f6
1 changed files with 3 additions and 8 deletions
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11
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
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@ -233,7 +233,7 @@ static bool isRotateAndMask(SDNode *N, unsigned Mask, bool IsShiftMask,
if (IsShiftMask) Mask = Mask << Shift;
// determine which bits are made indeterminant by shift
Indeterminant = ~(0xFFFFFFFFu << Shift);
} else if (Opcode == ISD::SRA || Opcode == ISD::SRL) {
} else if (Opcode == ISD::SRL) {
// apply shift right to mask if it comes first
if (IsShiftMask) Mask = Mask >> Shift;
// determine which bits are made indeterminant by shift
@ -1277,13 +1277,8 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) {
return SDOperand(N, 0);
}
case ISD::SRA: {
unsigned Imm, SH, MB, ME;
if (0 &&isOpcWithIntImmediate(N->getOperand(0).Val, ISD::AND, Imm) &&
isRotateAndMask(N, Imm, true, SH, MB, ME))
CurDAG->SelectNodeTo(N, PPC::RLWINM, MVT::i32,
Select(N->getOperand(0).getOperand(0)),
getI32Imm(SH), getI32Imm(MB), getI32Imm(ME));
else if (isIntImmediate(N->getOperand(1), Imm))
unsigned Imm;
if (isIntImmediate(N->getOperand(1), Imm))
CurDAG->SelectNodeTo(N, PPC::SRAWI, MVT::i32, Select(N->getOperand(0)),
getI32Imm(Imm));
else