[all-commits] [llvm/llvm-project] 23b18f: [MTE] Do not allow local aliases to MTE globals (#...

[Florian Mayer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 23b18fa01e6de7cb86a0cd294d58e5f8635d4afe
      https://github.com/llvm/llvm-project/commit/23b18fa01e6de7cb86a0cd294d58e5f8635d4afe
  Author: Florian Mayer <fmayer at google.com>
  Date:   2024-10-21 (Mon, 21 Oct 2024)

  Changed paths:
    M llvm/lib/IR/Globals.cpp
    A llvm/test/CodeGen/AArch64/semantic-interposition-memtag.ll

  Log Message:
  -----------
  [MTE] Do not allow local aliases to MTE globals (#106280)

With this change and appropriate linker changes
(https://r.android.com/3236256)
AOSP boots with memtag-global throughout the platform.

Without this change, we would sometimes generate PC-relative references
to tagged globals, which then do not have the proper tag.



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