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Fix PowerPC varargs 

llvm-svn: 22335
This commit is contained in:
Chris Lattner 2005-07-05 17:48:31 +00:00
parent 8c220defa8
commit 1239d2d7ff
1 changed files with 25 additions and 24 deletions
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49
llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
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@ -464,36 +464,37 @@ PPC32TargetLowering::LowerCallTo(SDOperand Chain,
}
std::pair<SDOperand, SDOperand>
PPC32TargetLowering::LowerVAStart(SDOperand Chain, SelectionDAG &DAG, SDOperand Dest) {
//vastart just returns the address of the VarArgsFrameIndex slot.
return std::make_pair(DAG.getFrameIndex(VarArgsFrameIndex, MVT::i32), Chain);
PPC32TargetLowering::LowerVAStart(SDOperand Chain, SelectionDAG &DAG,
SDOperand Dest) {
// vastart just stores the address of the VarArgsFrameIndex slot into the
// memory location argument.
SDOperand FR = DAG.getFrameIndex(VarArgsFrameIndex, MVT::i32);
SDOperand Result = DAG.getNode(ISD::STORE, MVT::Other, Chain, FR, Dest,
DAG.getSrcValue(NULL));
return std::make_pair(Result, Result);
}
std::pair<SDOperand,SDOperand> PPC32TargetLowering::
LowerVAArgNext(SDOperand Chain, SDOperand VAList,
LowerVAArgNext(SDOperand Chain, SDOperand VAArgOp,
const Type *ArgTy, SelectionDAG &DAG) {
// FIXME: THIS IS BROKEN!!!
bool isVANext = true;
MVT::ValueType ArgVT = getValueType(ArgTy);
SDOperand Result;
if (!isVANext) {
Result = DAG.getLoad(ArgVT, DAG.getEntryNode(), VAList,
DAG.getSrcValue(NULL));
} else {
unsigned Amt;
if (ArgVT == MVT::i32 || ArgVT == MVT::f32)
Amt = 4;
else {
assert((ArgVT == MVT::i64 || ArgVT == MVT::f64) &&
"Other types should have been promoted for varargs!");
Amt = 8;
}
Result = DAG.getNode(ISD::ADD, VAList.getValueType(), VAList,
DAG.getConstant(Amt, VAList.getValueType()));
SDOperand VAList =
DAG.getLoad(MVT::i32, Chain, VAArgOp, DAG.getSrcValue(NULL));
SDOperand Result = DAG.getLoad(ArgVT, VAList.getValue(1), VAList,
DAG.getSrcValue(NULL));
unsigned Amt;
if (ArgVT == MVT::i32 || ArgVT == MVT::f32)
Amt = 4;
else {
assert((ArgVT == MVT::i64 || ArgVT == MVT::f64) &&
"Other types should have been promoted for varargs!");
Amt = 8;
}
VAList = DAG.getNode(ISD::ADD, VAList.getValueType(), VAList,
DAG.getConstant(Amt, VAList.getValueType()));
Chain = DAG.getNode(ISD::STORE, MVT::Other, Chain,
VAList, VAArgOp, DAG.getSrcValue(NULL));
return std::make_pair(Result, Chain);
}