[PATCH] D79369: [InstCombine] "X - (X / C) * C == 0" to "X & C-1 == 0"

[Egor Bogatov via Phabricator via llvm-commits]

EgorBo added a comment.

@lebedev.ri Thanks for review!
I've moved the transformation to "InstCombiner::visitAdd"

So now it converts "((X / C1) << C2) + X" to "X % C1" thus "((X / C1) << C2) + X == 0" is automatically optimized to "X & C-1 == 0" later.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79369/new/

https://reviews.llvm.org/D79369