[PATCH] D48754: [InstCombine] canonicalize abs pattern

[ChenZheng via Phabricator via llvm-commits]

shchenz updated this revision to Diff 155622.
shchenz retitled this revision from "recognize more abs pattern" to "[InstCombine] canonicalize abs pattern".
shchenz added a comment.

part 1 & 2 are done.
part 3: canonicalize abs pattern and fix code review comments


https://reviews.llvm.org/D48754

Files:
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
  llvm/test/Transforms/InstCombine/abs-1.ll
  llvm/test/Transforms/InstCombine/abs_abs.ll
  llvm/test/Transforms/InstCombine/icmp.ll

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