diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp index 6fb119c862b..31d6e7f6b35 100644 --- a/lib/Target/PowerPC/PPCISelPattern.cpp +++ b/lib/Target/PowerPC/PPCISelPattern.cpp @@ -145,7 +145,7 @@ static bool isRotateAndMask(unsigned Opcode, unsigned Shift, unsigned Mask, if (IsShiftMask) Mask = Mask << Shift; // determine which bits are made indeterminant by shift Indeterminant = ~(0xFFFFFFFFu << Shift); - } else if (Opcode == ISD::SRA || Opcode == ISD::SRL) { // shift rights + } else if (Opcode == ISD::SRL) { // shift rights // apply shift to mask if it comes first if (IsShiftMask) Mask = Mask >> Shift; // determine which bits are made indeterminant by shift @@ -1125,17 +1125,8 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) { case ISD::SRA: if (isIntImmediate(N.getOperand(1), Tmp2)) { - unsigned SH, MB, ME; - if (isOpcWithIntImmediate(N.getOperand(0), ISD::AND, Tmp3) && - isRotateAndMask(ISD::SRA, Tmp2, Tmp3, true, SH, MB, ME)) { - Tmp1 = SelectExpr(N.getOperand(0).getOperand(0)); - BuildMI(BB, PPC::RLWINM, 4, Result).addReg(Tmp1).addImm(SH) - .addImm(MB).addImm(ME); - return Result; - } Tmp1 = SelectExpr(N.getOperand(0)); - Tmp2 &= 0x1F; - BuildMI(BB, PPC::SRAWI, 2, Result).addReg(Tmp1).addImm(Tmp2); + BuildMI(BB, PPC::SRAWI, 2, Result).addReg(Tmp1).addImm(Tmp2 & 0x1F); } else { Tmp1 = SelectExpr(N.getOperand(0)); Tmp2 = FoldIfWideZeroExtend(N.getOperand(1));