[all-commits] [llvm/llvm-project] b32bae: [Test] Add a unit test exposing lack of SCEV inval...

[serguei-katkov via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b32bae6f760896b0e285fb6967061e8cd281a8c1
      https://github.com/llvm/llvm-project/commit/b32bae6f760896b0e285fb6967061e8cd281a8c1
  Author: Serguei Katkov <serguei.katkov at azul.com>
  Date:   2019-10-31 (Thu, 31 Oct 2019)

  Changed paths:
    M llvm/unittests/Transforms/Scalar/CMakeLists.txt
    A llvm/unittests/Transforms/Scalar/LICMTest.cpp

  Log Message:
  -----------
  [Test] Add a unit test exposing lack of SCEV invalidation in LICM during code hoisting. NFC.

This unit test exposes a bug in LICM: when it hoists instructions it doesn't invalidate SCEV accordingly.
Similar test exposing lack of SCEV invalidation during code sinking will be submitted as a follow-up change.

Patch Author: Daniil Suchkov
Reviewers: mkazantsev, asbirlea, reames
Reviewed By: asbirlea
Subscribers: mgorny, javed.absar, llvm-commits
Differential Revision: https://reviews.llvm.org/D69369