[all-commits] [llvm/llvm-project] b27749: [scudo] Small cleanup of memory tagging code part ...

[Christopher Ferris via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b27749d8c7191f894e337a402344af7a9de9a5b0
      https://github.com/llvm/llvm-project/commit/b27749d8c7191f894e337a402344af7a9de9a5b0
  Author: Christopher Ferris <cferris1000 at users.noreply.github.com>
  Date:   2025-11-21 (Fri, 21 Nov 2025)

  Changed paths:
    M compiler-rt/lib/scudo/standalone/combined.h
    M compiler-rt/lib/scudo/standalone/memtag.h
    M compiler-rt/lib/scudo/standalone/tests/memtag_test.cpp
    M compiler-rt/lib/scudo/standalone/tests/secondary_test.cpp

  Log Message:
  -----------
  [scudo] Small cleanup of memory tagging code part 2. (#168807)

Make the systemSupportsMemoryTagging() function return even on system
that don't support memory tagging. This avoids the need to always check
if memory tagging is supported before calling the function.

Modify iterateOverChunks() to call useMemoryTagging<>(Options) to
determine if mte is supported. This already uses the cached check of
systemSupportsMemoryTagging() rather than directly calling that
function.

Updated the code that calls systemSupportsMemoryTagging().



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