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Implement div, rem, and frameindex

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20907 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2005-03-29 00:03:27 +00:00
parent f70b576ccc
commit f3d08f31b3
1 changed files with 27 additions and 8 deletions
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35
lib/Target/PowerPC/PPCISelPattern.cpp
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@ -595,6 +595,7 @@ unsigned ISel::SelectExprFP(SDOperand N, unsigned Result)
case ISD::UINT_TO_FP:
case ISD::SINT_TO_FP:
assert(0 && "ISD::U/SINT_TO_FP Unimplemented");
abort();
}
assert(0 && "should not get here");
@ -679,8 +680,9 @@ unsigned ISel::SelectExpr(SDOperand N) {
return Result;
case ISD::FrameIndex:
assert(0 && "ISD::FrameIndex Unimplemented");
abort();
Tmp1 = cast<FrameIndexSDNode>(N)->getIndex();
addFrameReference(BuildMI(BB, PPC::ADDI, 2, Result), (int)Tmp1);
return Result;
case ISD::GlobalAddress: {
GlobalValue *GV = cast<GlobalAddressSDNode>(N)->getGlobal();
@ -978,6 +980,29 @@ unsigned ISel::SelectExpr(SDOperand N) {
}
return Result;
case ISD::SDIV:
case ISD::UDIV:
assert (DestType == MVT::i32 && "Only do arithmetic on i32s!");
Tmp1 = SelectExpr(N.getOperand(0));
Tmp2 = SelectExpr(N.getOperand(1));
Opc = (ISD::UDIV == opcode) ? PPC::DIVWU : PPC::DIVW;
BuildMI(BB, Opc, 2, Result).addReg(Tmp1).addReg(Tmp2);
return Result;
case ISD::UREM:
case ISD::SREM: {
assert (DestType == MVT::i32 && "Only do arithmetic on i32s!");
Tmp1 = SelectExpr(N.getOperand(0));
Tmp2 = SelectExpr(N.getOperand(1));
Tmp3 = MakeReg(MVT::i32);
unsigned Tmp4 = MakeReg(MVT::i32);
Opc = (ISD::UREM == opcode) ? PPC::DIVWU : PPC::DIVW;
BuildMI(BB, Opc, 2, Tmp3).addReg(Tmp1).addReg(Tmp2);
BuildMI(BB, PPC::MULLW, 2, Tmp4).addReg(Tmp3).addReg(Tmp2);
BuildMI(BB, PPC::SUBF, 2, Result).addReg(Tmp4).addReg(Tmp1);
return Result;
}
case ISD::ADD_PARTS:
case ISD::SUB_PARTS: {
assert(N.getNumOperands() == 4 && N.getValueType() == MVT::i32 &&
@ -996,12 +1021,6 @@ unsigned ISel::SelectExpr(SDOperand N) {
return Result+N.ResNo;
}
case ISD::UREM:
case ISD::SREM:
case ISD::SDIV:
case ISD::UDIV:
abort();
case ISD::FP_TO_UINT:
case ISD::FP_TO_SINT:
abort();