[all-commits] [llvm/llvm-project] f69098: Return "[SCEV] Use isBasicBlockEntryGuardedByCond ...

[max-azul via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: f690986f314fbf3f4b3ca9ec0b87b95166008dc1
      https://github.com/llvm/llvm-project/commit/f690986f314fbf3f4b3ca9ec0b87b95166008dc1
  Author: Max Kazantsev <mkazantsev at azul.com>
  Date:   2020-11-26 (Thu, 26 Nov 2020)

  Changed paths:
    M llvm/lib/Analysis/ScalarEvolution.cpp
    M llvm/test/Transforms/LoopStrengthReduce/post-inc-icmpzero.ll

  Log Message:
  -----------
  Return "[SCEV] Use isBasicBlockEntryGuardedByCond in isLoopBackedgeGuardedByCond", 2nd try

Reverted because the compile time impact is still too high.

isKnownViaNonRecursiveReasoning is used twice, we can do it just once.

Differential Revision: https://reviews.llvm.org/D92152