return DAG.getNode(ISD::RET, MVT::Other, Chain, Op);
}
-SDOperand TargetLowering::LowerVAStart(SDOperand Chain,
- SDOperand VAListP, Value *VAListV,
- SelectionDAG &DAG) {
- // We have no sane default behavior, just emit a useful error message and bail
- // out.
- std::cerr << "Variable arguments handling not implemented on this target!\n";
- abort();
- return SDOperand();
-}
-
-SDOperand TargetLowering::LowerVAEnd(SDOperand Chain, SDOperand LP, Value *LV,
- SelectionDAG &DAG) {
- // Default to a noop.
- return Chain;
-}
-
-SDOperand TargetLowering::LowerVACopy(SDOperand Chain,
- SDOperand SrcP, Value *SrcV,
- SDOperand DestP, Value *DestV,
- SelectionDAG &DAG) {
- // Default to copying the input list.
- 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));
- return Result;
-}
-
-std::pair<SDOperand,SDOperand>
-TargetLowering::LowerVAArg(SDOperand Chain, SDOperand VAListP, Value *VAListV,
- const Type *ArgTy, SelectionDAG &DAG) {
- // We have no sane default behavior, just emit a useful error message and bail
- // out.
- std::cerr << "Variable arguments handling not implemented on this target!\n";
- abort();
- return std::make_pair(SDOperand(), SDOperand());
-}
-
-
void SelectionDAGLowering::visitVAStart(CallInst &I) {
- DAG.setRoot(TLI.LowerVAStart(getRoot(), getValue(I.getOperand(1)),
- I.getOperand(1), DAG));
+ DAG.setRoot(DAG.getNode(ISD::VASTART, MVT::Other, getRoot(),
+ getValue(I.getOperand(1)),
+ DAG.getSrcValue(I.getOperand(1))));
}
void SelectionDAGLowering::visitVAArg(VAArgInst &I) {
- std::pair<SDOperand,SDOperand> Result =
- TLI.LowerVAArg(getRoot(), getValue(I.getOperand(0)), I.getOperand(0),
- I.getType(), DAG);
- setValue(&I, Result.first);
- DAG.setRoot(Result.second);
+ SDOperand V = DAG.getVAArg(TLI.getValueType(I.getType()), getRoot(),
+ getValue(I.getOperand(0)),
+ DAG.getSrcValue(I.getOperand(0)));
+ setValue(&I, V);
+ DAG.setRoot(V.getValue(1));
}
void SelectionDAGLowering::visitVAEnd(CallInst &I) {
- DAG.setRoot(TLI.LowerVAEnd(getRoot(), getValue(I.getOperand(1)),
- I.getOperand(1), DAG));
+ DAG.setRoot(DAG.getNode(ISD::VAEND, MVT::Other, getRoot(),
+ getValue(I.getOperand(1)),
+ DAG.getSrcValue(I.getOperand(1))));
}
void SelectionDAGLowering::visitVACopy(CallInst &I) {
- SDOperand Result =
- TLI.LowerVACopy(getRoot(), getValue(I.getOperand(2)), I.getOperand(2),
- getValue(I.getOperand(1)), I.getOperand(1), DAG);
- DAG.setRoot(Result);
+ DAG.setRoot(DAG.getNode(ISD::VACOPY, MVT::Other, getRoot(),
+ getValue(I.getOperand(1)),
+ getValue(I.getOperand(2)),
+ DAG.getSrcValue(I.getOperand(1)),
+ DAG.getSrcValue(I.getOperand(2))));
}
-
// It is always conservatively correct for llvm.returnaddress and
// llvm.frameaddress to return 0.
std::pair<SDOperand, SDOperand>