[PATCH] D65144: [InstCombine] Fold '((%x * %y) u/ %x) != %y' to '@llvm.umul.with.overflow' + overflow bit extraction

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 211306.
lebedev.ri added a comment.

NFC, rebase, improve comments.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D65144/new/

https://reviews.llvm.org/D65144

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/lib/Transforms/InstCombine/InstCombineInternal.h
  llvm/test/Transforms/InstCombine/unsigned-mul-lack-of-overflow-check-via-mul-udiv.ll
  llvm/test/Transforms/InstCombine/unsigned-mul-overflow-check-via-mul-udiv.ll

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