[all-commits] [llvm/llvm-project] 395093: [msan] Switch to -msan-handle-icmp-exact my defaul...

[Vitaly Buka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 395093ec150accf19b8158f9d2327ba470e92867
      https://github.com/llvm/llvm-project/commit/395093ec150accf19b8158f9d2327ba470e92867
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2024-10-22 (Tue, 22 Oct 2024)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
    M llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll
    M llvm/test/Instrumentation/MemorySanitizer/pr32842.ll

  Log Message:
  -----------
  [msan] Switch to -msan-handle-icmp-exact my default (#113200)

Fixes #111212.

This grows .text by 5.3% on CTMark, (or 2.6% large internal binary)
Perf regressed by 1.6%. We will try to improve in follow up patches.

It worth to pay some performance regression to fix
correctness to avoid stuff like #111212.



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