[PATCH] D58965: [DAGCombiner] Enable UADDO/USUBO vector combine support

[Nikita Popov via Phabricator via llvm-commits]

nikic added inline comments.


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Comment at: lib/CodeGen/SelectionDAG/DAGCombiner.cpp:2463
   // If Y + 1 cannot overflow.
   if (N1.getOpcode() == ISD::ADDCARRY && isNullConstant(N1.getOperand(1))) {
     SDValue Y = N1.getOperand(0);
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Should this also become isNullorNullSplat? (Does ADDCARRY support vectors?)


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58965/new/

https://reviews.llvm.org/D58965