[all-commits] [llvm/llvm-project] 0e96ee: [msan] Reland: Increase k num stack origin descrs ...

[Thurston Dang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0e96eebc7f681a7ce41f35909e609c7c61a11455
      https://github.com/llvm/llvm-project/commit/0e96eebc7f681a7ce41f35909e609c7c61a11455
  Author: Thurston Dang <thurston at google.com>
  Date:   2024-05-28 (Tue, 28 May 2024)

  Changed paths:
    M compiler-rt/lib/msan/msan.cpp

  Log Message:
  -----------
  [msan] Reland: Increase k num stack origin descrs (limited to non-PowerPC) (#93117)

The original pull request
(https://github.com/llvm/llvm-project/pull/92838) was reverted due to a
PowerPC buildbot breakage
(https://github.com/llvm/llvm-project/commit/df626dd11c360c58eddae813ce6a0524d0a53696).
This reland limits the scope of the change to non-PowerPC platforms. I
am unaware of any PowerPC use cases that would benefit from a larger
kNumStackOriginDescrs constant.

Original CL description: This increases the constant size of
kNumStackOriginDescrs to 4M (64GB of BSS across two arrays), which ought
to be enough for anybody.

This is the easier alternative suggested by eugenis@ in
https://github.com/llvm/llvm-project/pull/92826.



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