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First part of bug 680:

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Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25606 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman
2006-01-25 18:21:52 +00:00
parent 05ebc8d795
commit acc398c195
16 changed files with 373 additions and 373 deletions
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144
lib/Target/Alpha/AlphaISelLowering.cpp
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@@ -368,79 +368,6 @@ AlphaTargetLowering::LowerCallTo(SDOperand Chain,
return std::make_pair(RetVal, Chain);
}
SDOperand AlphaTargetLowering::LowerVAStart(SDOperand Chain, SDOperand VAListP,
Value *VAListV, SelectionDAG &DAG) {
// vastart stores the address of the VarArgsBase and VarArgsOffset
SDOperand FR = DAG.getFrameIndex(VarArgsBase, MVT::i64);
SDOperand S1 = DAG.getNode(ISD::STORE, MVT::Other, Chain, FR, VAListP,
DAG.getSrcValue(VAListV));
SDOperand SA2 = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, S1,
DAG.getConstant(VarArgsOffset, MVT::i64), SA2,
DAG.getSrcValue(VAListV, 8), DAG.getValueType(MVT::i32));
}
std::pair<SDOperand,SDOperand> AlphaTargetLowering::
LowerVAArg(SDOperand Chain, SDOperand VAListP, Value *VAListV,
const Type *ArgTy, SelectionDAG &DAG) {
SDOperand Base = DAG.getLoad(MVT::i64, Chain, VAListP,
DAG.getSrcValue(VAListV));
SDOperand Tmp = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
SDOperand Offset = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Base.getValue(1),
Tmp, DAG.getSrcValue(VAListV, 8), MVT::i32);
SDOperand DataPtr = DAG.getNode(ISD::ADD, MVT::i64, Base, Offset);
if (ArgTy->isFloatingPoint())
{
//if fp && Offset < 6*8, then subtract 6*8 from DataPtr
SDOperand FPDataPtr = DAG.getNode(ISD::SUB, MVT::i64, DataPtr,
DAG.getConstant(8*6, MVT::i64));
SDOperand CC = DAG.getSetCC(MVT::i64, Offset,
DAG.getConstant(8*6, MVT::i64), ISD::SETLT);
DataPtr = DAG.getNode(ISD::SELECT, MVT::i64, CC, FPDataPtr, DataPtr);
}
SDOperand Result;
if (ArgTy == Type::IntTy)
Result = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Offset.getValue(1),
DataPtr, DAG.getSrcValue(NULL), MVT::i32);
else if (ArgTy == Type::UIntTy)
Result = DAG.getExtLoad(ISD::ZEXTLOAD, MVT::i64, Offset.getValue(1),
DataPtr, DAG.getSrcValue(NULL), MVT::i32);
else
Result = DAG.getLoad(getValueType(ArgTy), Offset.getValue(1), DataPtr,
DAG.getSrcValue(NULL));
SDOperand NewOffset = DAG.getNode(ISD::ADD, MVT::i64, Offset,
DAG.getConstant(8, MVT::i64));
SDOperand Update = DAG.getNode(ISD::TRUNCSTORE, MVT::Other,
Result.getValue(1), NewOffset,
Tmp, DAG.getSrcValue(VAListV, 8),
DAG.getValueType(MVT::i32));
Result = DAG.getNode(ISD::TRUNCATE, getValueType(ArgTy), Result);
return std::make_pair(Result, Update);
}
SDOperand AlphaTargetLowering::
LowerVACopy(SDOperand Chain, SDOperand SrcP, Value *SrcV, SDOperand DestP,
Value *DestV, SelectionDAG &DAG) {
SDOperand Val = DAG.getLoad(getPointerTy(), Chain, SrcP,
DAG.getSrcValue(SrcV));
SDOperand Result = DAG.getNode(ISD::STORE, MVT::Other, Val.getValue(1),
Val, DestP, DAG.getSrcValue(DestV));
SDOperand NP = DAG.getNode(ISD::ADD, MVT::i64, SrcP,
DAG.getConstant(8, MVT::i64));
Val = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Result, NP,
DAG.getSrcValue(SrcV, 8), MVT::i32);
SDOperand NPD = DAG.getNode(ISD::ADD, MVT::i64, DestP,
DAG.getConstant(8, MVT::i64));
return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Val.getValue(1),
Val, NPD, DAG.getSrcValue(DestV, 8),
DAG.getValueType(MVT::i32));
}
void AlphaTargetLowering::restoreGP(MachineBasicBlock* BB)
{
BuildMI(BB, Alpha::BIS, 2, Alpha::R29).addReg(GP).addReg(GP);
@@ -680,8 +607,77 @@ SDOperand AlphaTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
ARGS.push_back(DAG.getConstant(getUID(), MVT::i64));
return DAG.getNode(Opc, VTS, ARGS);
}
case ISD::VAARG: {
SDOperand Chain = Op.getOperand(0);
SDOperand VAListP = Op.getOperand(1);
SDOperand VAListS = Op.getOperand(2);
SDOperand Base = DAG.getLoad(MVT::i64, Chain, VAListP, VAListS);
SDOperand Tmp = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
SDOperand Offset = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Base.getValue(1),
Tmp, DAG.getSrcValue(0), MVT::i32);
SDOperand DataPtr = DAG.getNode(ISD::ADD, MVT::i64, Base, Offset);
if (MVT::isFloatingPoint(Op.getValueType()))
{
//if fp && Offset < 6*8, then subtract 6*8 from DataPtr
SDOperand FPDataPtr = DAG.getNode(ISD::SUB, MVT::i64, DataPtr,
DAG.getConstant(8*6, MVT::i64));
SDOperand CC = DAG.getSetCC(MVT::i64, Offset,
DAG.getConstant(8*6, MVT::i64), ISD::SETLT);
DataPtr = DAG.getNode(ISD::SELECT, MVT::i64, CC, FPDataPtr, DataPtr);
}
SDOperand NewOffset = DAG.getNode(ISD::ADD, MVT::i64, Offset,
DAG.getConstant(8, MVT::i64));
SDOperand Update = DAG.getNode(ISD::TRUNCSTORE, MVT::Other,
Offset.getValue(1), NewOffset,
Tmp, DAG.getSrcValue(0),
DAG.getValueType(MVT::i32));
SDOperand Result;
if (Op.getValueType() == MVT::i32)
Result = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Update, DataPtr,
DAG.getSrcValue(0), MVT::i32);
else
Result = DAG.getLoad(Op.getValueType(), Update, DataPtr,
DAG.getSrcValue(0));
return Result;
}
case ISD::VACOPY: {
SDOperand Chain = Op.getOperand(0);
SDOperand DestP = Op.getOperand(1);
SDOperand SrcP = Op.getOperand(2);
SDOperand DestS = Op.getOperand(3);
SDOperand SrcS = Op.getOperand(4);
SDOperand Val = DAG.getLoad(getPointerTy(), Chain, SrcP, SrcS);
SDOperand Result = DAG.getNode(ISD::STORE, MVT::Other, Val.getValue(1), Val,
DestP, DestS);
SDOperand NP = DAG.getNode(ISD::ADD, MVT::i64, SrcP,
DAG.getConstant(8, MVT::i64));
Val = DAG.getExtLoad(ISD::SEXTLOAD, MVT::i64, Result, NP,
DAG.getSrcValue(0), MVT::i32);
SDOperand NPD = DAG.getNode(ISD::ADD, MVT::i64, DestP,
DAG.getConstant(8, MVT::i64));
return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Val.getValue(1),
Val, NPD, DAG.getSrcValue(0),DAG.getValueType(MVT::i32));
}
case ISD::VASTART: {
SDOperand Chain = Op.getOperand(0);
SDOperand VAListP = Op.getOperand(1);
SDOperand VAListS = Op.getOperand(2);
// vastart stores the address of the VarArgsBase and VarArgsOffset
SDOperand FR = DAG.getFrameIndex(VarArgsBase, MVT::i64);
SDOperand S1 = DAG.getNode(ISD::STORE, MVT::Other, Chain, FR, VAListP,
VAListS);
SDOperand SA2 = DAG.getNode(ISD::ADD, MVT::i64, VAListP,
DAG.getConstant(8, MVT::i64));
return DAG.getNode(ISD::TRUNCSTORE, MVT::Other, S1,
DAG.getConstant(VarArgsOffset, MVT::i64), SA2,
DAG.getSrcValue(0), DAG.getValueType(MVT::i32));
}
}
return SDOperand();