[PATCH] D144045: [InstCombine] Avoid sinking fdiv into a loop

[David Sherwood via Phabricator via llvm-commits]

david-arm updated this revision to Diff 521590.
david-arm retitled this revision from "[InstCombine] avoid sinking fdiv into a loop " to "[InstCombine] Avoid sinking fdiv into a loop".
david-arm edited the summary of this revision.
david-arm added a comment.

- Address review comments by only applying the transformation when either a) we know the fmul lives in a loop and the fdiv is loop invariant, or b) when we know the fmul and fdiv live in the same block.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144045/new/

https://reviews.llvm.org/D144045

Files:
  llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
  llvm/test/Transforms/InstCombine/fmul.ll
  llvm/test/Transforms/PhaseOrdering/X86/vdiv-nounroll.ll
  llvm/test/Transforms/PhaseOrdering/X86/vdiv.ll
  llvm/test/Transforms/PhaseOrdering/lto-licm.ll

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