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[SelectionDAG] Remove some code from PromoteIntOp_MGATHER that handles UpdateNodeOperands returning an existing node instead of updating.

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I suspect this became unecessary when the CSE of mgather was fixed in r338080. It may still be possible to hit this if we widen the element type of a gather outside of type legalization and the promote the mask of a separate gather node so they become the same. But that seems pretty unlikely.

llvm-svn: 342022
This commit is contained in:
Craig Topper 2018-09-12 05:25:41 +00:00
parent 8668582979
commit a6bdfdd0ca
1 changed files with 1 additions and 8 deletions
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9
lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
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@ -1260,14 +1260,7 @@ SDValue DAGTypeLegalizer::PromoteIntOp_MGATHER(MaskedGatherSDNode *N,
} else
NewOps[OpNo] = GetPromotedInteger(N->getOperand(OpNo));
SDValue Res = SDValue(DAG.UpdateNodeOperands(N, NewOps), 0);
// updated in place.
if (Res.getNode() == N)
return Res;
ReplaceValueWith(SDValue(N, 0), Res.getValue(0));
ReplaceValueWith(SDValue(N, 1), Res.getValue(1));
return SDValue();
return SDValue(DAG.UpdateNodeOperands(N, NewOps), 0);
}
SDValue DAGTypeLegalizer::PromoteIntOp_MSCATTER(MaskedScatterSDNode *N,