[PATCH] D66232: [InstCombine] Try to reuse constant from select in leading comparison

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 216673.
lebedev.ri marked 4 inline comments as done.
lebedev.ri added a comment.

Rebased, posted D66607 <https://reviews.llvm.org/D66607> to adress regression that this patch exposes.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66232/new/

https://reviews.llvm.org/D66232

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
  llvm/test/Transforms/InstCombine/canonicalize-clamp-with-select-of-constant-threshold-pattern.ll
  llvm/test/Transforms/InstCombine/reuse-constant-from-select-in-icmp.ll
  llvm/test/Transforms/InstCombine/unrecognized_three-way-comparison.ll
  llvm/test/Transforms/InstCombine/xor-of-icmps-with-extra-uses.ll

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