}
std::pair<SDValue,SDValue> X86TargetLowering::
-FP_TO_INTHelper(SDValue Op, SelectionDAG &DAG, bool IsSigned) const {
+FP_TO_INTHelper(SDValue Op, SelectionDAG &DAG, bool IsSigned, bool IsReplace) const {
DebugLoc DL = Op.getDebugLoc();
EVT DstTy = Op.getValueType();
MVT::i32, ftol.getValue(1));
SDValue edx = DAG.getCopyFromReg(eax.getValue(1), DL, X86::EDX,
MVT::i32, eax.getValue(2));
- SDValue pair = DAG.getNode(ISD::BUILD_PAIR, DL, MVT::i64, eax, edx);
+ SDValue Ops[] = { eax, edx };
+ SDValue pair = IsReplace
+ ? DAG.getNode(ISD::BUILD_PAIR, DL, MVT::i64, Ops, 2)
+ : DAG.getMergeValues(Ops, 2, DL);
return std::make_pair(pair, SDValue());
}
}
if (Op.getValueType().isVector())
return SDValue();
- std::pair<SDValue,SDValue> Vals = FP_TO_INTHelper(Op, DAG, true);
+ std::pair<SDValue,SDValue> Vals = FP_TO_INTHelper(Op, DAG,
+ /*IsSigned=*/ true, /*IsReplace=*/ false);
SDValue FIST = Vals.first, StackSlot = Vals.second;
// If FP_TO_INTHelper failed, the node is actually supposed to be Legal.
if (FIST.getNode() == 0) return Op;
SDValue X86TargetLowering::LowerFP_TO_UINT(SDValue Op,
SelectionDAG &DAG) const {
- std::pair<SDValue,SDValue> Vals = FP_TO_INTHelper(Op, DAG, false);
+ std::pair<SDValue,SDValue> Vals = FP_TO_INTHelper(Op, DAG,
+ /*IsSigned=*/ false, /*IsReplace=*/ false);
SDValue FIST = Vals.first, StackSlot = Vals.second;
assert(FIST.getNode() && "Unexpected failure");
- // Load the result.
- return DAG.getLoad(Op.getValueType(), Op.getDebugLoc(),
- FIST, StackSlot, MachinePointerInfo(),
- false, false, false, 0);
+ if (StackSlot.getNode())
+ // Load the result.
+ return DAG.getLoad(Op.getValueType(), Op.getDebugLoc(),
+ FIST, StackSlot, MachinePointerInfo(),
+ false, false, false, 0);
+ else
+ // The node is the result.
+ return FIST;
}
SDValue X86TargetLowering::LowerFABS(SDValue Op,
return;
std::pair<SDValue,SDValue> Vals =
- FP_TO_INTHelper(SDValue(N, 0), DAG, IsSigned);
+ FP_TO_INTHelper(SDValue(N, 0), DAG, IsSigned, /*IsReplace=*/ true);
SDValue FIST = Vals.first, StackSlot = Vals.second;
if (FIST.getNode() != 0) {
EVT VT = N->getValueType(0);