[PATCH] D122013: [InstCombine] Fold abs of known negative operand when source is sub

[chenglin.bi via Phabricator via llvm-commits]

bcl5980 updated this revision to Diff 416956.
bcl5980 marked an inline comment as done.
bcl5980 added a comment.

update based on spatel's suggestion

1. use match pattern
2. add more tests


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122013/new/

https://reviews.llvm.org/D122013

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
  llvm/test/Transforms/InstCombine/abs-intrinsic.ll

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