[PATCH] D45655: [InstCombine][RFC] Canonicalize constant mask in masked merge mattern

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 142553.
lebedev.ri added a comment.

`nullptr`-init `Mc` too.
Does not appear to matter, but i have already hit the bug when
i forgot to do that to `M`, so better safe than sorry.


Repository:
  rL LLVM

https://reviews.llvm.org/D45655

Files:
  lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
  test/Transforms/InstCombine/invert-const-mask-in-masked-merge-scalar.ll
  test/Transforms/InstCombine/invert-const-mask-in-masked-merge-vector.ll

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