[all-commits] [llvm/llvm-project] 14d7b8: [BOLT][PAC] Warn about synchronous unwind tables

[Gergely Bálint via All-commits]

  Branch: refs/heads/users/bgergely0/bolt-warn-on-sync-unw
  Home:   https://github.com/llvm/llvm-project
  Commit: 14d7b87afe18ce26ec43bff1e218532090076976
      https://github.com/llvm/llvm-project/commit/14d7b87afe18ce26ec43bff1e218532090076976
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp
    A bolt/test/runtime/AArch64/pacret-synchronous-unwind.cpp

  Log Message:
  -----------
  [BOLT][PAC] Warn about synchronous unwind tables

BOLT currently ignores functions with synchronous PAuth DWARF info.
When more than 10% of functions get ignored for inconsistencies, we
should emit a warning to only use asynchronous unwind tables.

See also: #165215


  Commit: b9eea6d6fc8c714e5ff075a8266bc1dd86ae136b
      https://github.com/llvm/llvm-project/commit/b9eea6d6fc8c714e5ff075a8266bc1dd86ae136b
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp
    M bolt/test/AArch64/pacret-cfi-incorrect.s

  Log Message:
  -----------
  [BOLT] Use opts::Verbosity in PointerAuthCFIAnalyzer


  Commit: a0677d17ab3ca170e80c9a13ad025a3826450a6b
      https://github.com/llvm/llvm-project/commit/a0677d17ab3ca170e80c9a13ad025a3826450a6b
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp

  Log Message:
  -----------
  [BOLT] Add comment about the chosen threshold


  Commit: 14a19b576a93857cc3031de2b98cac370b8d1b11
      https://github.com/llvm/llvm-project/commit/14a19b576a93857cc3031de2b98cac370b8d1b11
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M bolt/lib/Passes/PointerAuthCFIAnalyzer.cpp

  Log Message:
  -----------
  [BOLT] PointerAuthCFIAnalyzer: return early if there is no work

- makes sure we do not divide by zero, to calculate the % of ignored
  functions.


Compare: https://github.com/llvm/llvm-project/compare/ed5fa9bcaad8...14a19b576a93

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