[all-commits] [llvm/llvm-project] 72df1f: [HWASan] Add hwasan-tag-bits flag (#191088)

[Florian Mayer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 72df1fc645116566cc7240b48c0bc824b504dc47
      https://github.com/llvm/llvm-project/commit/72df1fc645116566cc7240b48c0bc824b504dc47
  Author: Florian Mayer <fmayer at google.com>
  Date:   2026-04-13 (Mon, 13 Apr 2026)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
    M llvm/test/Instrumentation/HWAddressSanitizer/alloca.ll

  Log Message:
  -----------
  [HWASan] Add hwasan-tag-bits flag (#191088)

This can be used to make sure the stack tagging does not use the top bit
of
the pointer. This is useful when HWASan is used in combination with
signed-integer-overflow detection. Some code uses arithmetic on intptr_t
that overflows for sufficiently large pointers.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications