[all-commits] [llvm/llvm-project] 31bfa4: [MSAN] Add handleCountZeroes for ctlz and cttz.

[kda via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 31bfa4a69b127bfb7217ceb67ca4deeddd6bf28b
      https://github.com/llvm/llvm-project/commit/31bfa4a69b127bfb7217ceb67ca4deeddd6bf28b
  Author: Kevin Athey <kda at google.com>
  Date:   2022-10-24 (Mon, 24 Oct 2022)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
    M llvm/test/Instrumentation/MemorySanitizer/count-zeroes.ll

  Log Message:
  -----------
  [MSAN] Add handleCountZeroes for ctlz and cttz.

This addresses a bug where vector versions of ctlz are creating false positive reports.

Depends on D136369

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D136523