[all-commits] [llvm/llvm-project] 3a743a: [InstCombine] Fix memrchr logic error that prevent...

[Martin Sebor via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3a743a589244d02c8b05e4e514a8d7f0d235b24d
      https://github.com/llvm/llvm-project/commit/3a743a589244d02c8b05e4e514a8d7f0d235b24d
  Author: Martin Sebor <msebor at redhat.com>
  Date:   2022-06-30 (Thu, 30 Jun 2022)

  Changed paths:
    M llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
    M llvm/test/Transforms/InstCombine/memrchr-3.ll

  Log Message:
  -----------
  [InstCombine] Fix memrchr logic error that prevents folding

Correct a logic bug in the memrchr enhancement added in D123629 that
makes it ineffective in a subset of cases.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D128856