[PATCH] D49248: [TargetLowering] Add support for non-uniform vectors to BuildUDIV
Roman Lebedev via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat Jul 14 06:30:57 PDT 2018
lebedev.ri added inline comments.
================
Comment at: lib/CodeGen/SelectionDAG/DAGCombiner.cpp:17829
+ SDValue N1 = N->getOperand(1);
+ if (!isConstantOrConstantVector(N1) || !DAG.isKnownNeverZero(N1))
return SDValue();
----------------
`isKnownNeverZero()` should also probably be wary of `undef`?
Repository:
rL LLVM
https://reviews.llvm.org/D49248
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