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Remove dead code

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23179 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-31 20:25:15 +00:00
parent bc11c3482c
commit 8346bb6c29
2 changed files with 0 additions and 75 deletions
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38
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
View File

@ -1220,44 +1220,6 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) {
CurDAG->ReplaceAllUsesWith(N, Result);
return Result[Op.ResNo];
}
case ISD::SHL_PARTS: {
SDOperand LO = Select(N->getOperand(0));
SDOperand HI = Select(N->getOperand(1));
SDOperand SH = Select(N->getOperand(2));
SDOperand SH_LO_R = CurDAG->getTargetNode(PPC::SUBFIC, MVT::i32, MVT::Flag,
SH, getI32Imm(32));
SDOperand SH_LO_L = CurDAG->getTargetNode(PPC::ADDI, MVT::i32, SH,
getI32Imm((unsigned)-32));
SDOperand HI_SHL = CurDAG->getTargetNode(PPC::SLW, MVT::i32, HI, SH);
SDOperand HI_LOR = CurDAG->getTargetNode(PPC::SRW, MVT::i32, LO, SH_LO_R);
SDOperand HI_LOL = CurDAG->getTargetNode(PPC::SLW, MVT::i32, LO, SH_LO_L);
SDOperand HI_OR = CurDAG->getTargetNode(PPC::OR, MVT::i32, HI_SHL, HI_LOR);
std::vector<SDOperand> Result;
Result.push_back(CurDAG->getTargetNode(PPC::SLW, MVT::i32, LO, SH));
Result.push_back(CurDAG->getTargetNode(PPC::OR, MVT::i32, HI_OR, HI_LOL));
CurDAG->ReplaceAllUsesWith(N, Result);
return Result[Op.ResNo];
}
case ISD::SRL_PARTS: {
SDOperand LO = Select(N->getOperand(0));
SDOperand HI = Select(N->getOperand(1));
SDOperand SH = Select(N->getOperand(2));
SDOperand SH_HI_L = CurDAG->getTargetNode(PPC::SUBFIC, MVT::i32, MVT::Flag,
SH, getI32Imm(32));
SDOperand SH_HI_R = CurDAG->getTargetNode(PPC::ADDI, MVT::i32, SH,
getI32Imm((unsigned)-32));
SDOperand LO_SHR = CurDAG->getTargetNode(PPC::SRW, MVT::i32, LO, SH);
SDOperand LO_HIL = CurDAG->getTargetNode(PPC::SLW, MVT::i32, HI, SH_HI_L);
SDOperand LO_HIR = CurDAG->getTargetNode(PPC::SRW, MVT::i32, HI, SH_HI_R);
SDOperand LO_OR = CurDAG->getTargetNode(PPC::OR, MVT::i32, LO_SHR, LO_HIL);
std::vector<SDOperand> Result;
Result.push_back(CurDAG->getTargetNode(PPC::OR, MVT::i32, LO_OR, LO_HIR));
Result.push_back(CurDAG->getTargetNode(PPC::SRW, MVT::i32, HI, SH));
CurDAG->ReplaceAllUsesWith(N, Result);
return Result[Op.ResNo];
}
case ISD::LOAD:
case ISD::EXTLOAD:

37
lib/Target/PowerPC/PPCISelPattern.cpp
View File

@ -801,8 +801,6 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
break;
case ISD::ADD_PARTS:
case ISD::SUB_PARTS:
case ISD::SHL_PARTS:
case ISD::SRL_PARTS:
Result = MakeReg(Node->getValueType(0));
ExprMap[N.getValue(0)] = Result;
for (unsigned i = 1, e = N.Val->getNumValues(); i != e; ++i)
@ -1438,41 +1436,6 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
return Result+N.ResNo;
}
case ISD::SHL_PARTS:
case ISD::SRL_PARTS: {
assert(N.getNumOperands() == 3 && N.getValueType() == MVT::i32 &&
"Not an i64 shift!");
unsigned ShiftOpLo = SelectExpr(N.getOperand(0));
unsigned ShiftOpHi = SelectExpr(N.getOperand(1));
unsigned SHReg = FoldIfWideZeroExtend(N.getOperand(2));
Tmp1 = MakeIntReg();
Tmp2 = MakeIntReg();
Tmp3 = MakeIntReg();
unsigned Tmp4 = MakeIntReg();
unsigned Tmp5 = MakeIntReg();
unsigned Tmp6 = MakeIntReg();
BuildMI(BB, PPC::SUBFIC, 2, Tmp1).addReg(SHReg).addSImm(32);
if (ISD::SHL_PARTS == opcode) {
BuildMI(BB, PPC::SLW, 2, Tmp2).addReg(ShiftOpHi).addReg(SHReg);
BuildMI(BB, PPC::SRW, 2, Tmp3).addReg(ShiftOpLo).addReg(Tmp1);
BuildMI(BB, PPC::OR, 2, Tmp4).addReg(Tmp2).addReg(Tmp3);
BuildMI(BB, PPC::ADDI, 2, Tmp5).addReg(SHReg).addSImm(-32);
BuildMI(BB, PPC::SLW, 2, Tmp6).addReg(ShiftOpLo).addReg(Tmp5);
BuildMI(BB, PPC::OR, 2, Result+1).addReg(Tmp4).addReg(Tmp6);
BuildMI(BB, PPC::SLW, 2, Result).addReg(ShiftOpLo).addReg(SHReg);
} else {
assert (opcode == ISD::SRL_PARTS);
BuildMI(BB, PPC::SRW, 2, Tmp2).addReg(ShiftOpLo).addReg(SHReg);
BuildMI(BB, PPC::SLW, 2, Tmp3).addReg(ShiftOpHi).addReg(Tmp1);
BuildMI(BB, PPC::OR, 2, Tmp4).addReg(Tmp2).addReg(Tmp3);
BuildMI(BB, PPC::ADDI, 2, Tmp5).addReg(SHReg).addSImm(-32);
BuildMI(BB, PPC::SRW, 2, Tmp6).addReg(ShiftOpHi).addReg(Tmp5);
BuildMI(BB, PPC::OR, 2, Result).addReg(Tmp4).addReg(Tmp6);
BuildMI(BB, PPC::SRW, 2, Result+1).addReg(ShiftOpHi).addReg(SHReg);
}
return Result+N.ResNo;
}
case ISD::FP_TO_SINT: {
Tmp1 = SelectExpr(N.getOperand(0));
Tmp2 = MakeFPReg();