[all-commits] [llvm/llvm-project] 82b1e3: [HWASAN] Use InTaggableRegion in basic tagging fun...

[Vitaly Buka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 82b1e3b4122d8602556fbd439c7e5fc1f7f7eb4f
      https://github.com/llvm/llvm-project/commit/82b1e3b4122d8602556fbd439c7e5fc1f7f7eb4f
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2023-04-26 (Wed, 26 Apr 2023)

  Changed paths:
    M compiler-rt/lib/hwasan/hwasan.h
    M compiler-rt/lib/hwasan/hwasan_allocator.cpp

  Log Message:
  -----------
  [HWASAN] Use InTaggableRegion in basic tagging functions

For primary use-case when !HWASAN_ALIASING_MODE the function is constant
true and should be eliminated by optimizations.

In case HWASAN_ALIASING_MODE all new calls to the functions were missing
in the first place. We just not use this mode for anything but tests, so
we didn't noticed.

Addressing @thurston comment on D149293

Reviewed By: thurston

Differential Revision: https://reviews.llvm.org/D149305