[all-commits] [llvm/llvm-project] 90d30f: [InstCombine] Add frozen for the condition value o...

[Allen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 90d30fde12d80b633ce157b5f070a33e96018bbc
      https://github.com/llvm/llvm-project/commit/90d30fde12d80b633ce157b5f070a33e96018bbc
  Author: Zhongyunde <zhongyunde at huawei.com>
  Date:   2023-04-27 (Thu, 27 Apr 2023)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
    M llvm/test/Transforms/InstCombine/rem.ll
    M llvm/test/Transforms/InstCombine/shift.ll

  Log Message:
  -----------
  [InstCombine] Add frozen for the condition value of SelectInst

If the condition value of SelectInst may be a poison or undef value,
infer constant range at SelectInst use is incorrect, similar to D143883.
Fixes https://github.com/llvm/llvm-project/issues/62401

Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D149339