[Bug 2112171] Re: ASan detect_stack_use_after_return=1 makes vector<bool> incredibly slow

[Tobias Heider]

> 13.4.0 is out now; can we expect it to be picked up by noble-updates?

The easier way to get this fixed would be to backport that specific fix
and get it SRUed, see https://documentation.ubuntu.com/sru/en/latest/

I don't know if there is a plan to backport 13.4 to noble anytime soon.

Subscribing @doko who might know more then me.

** Changed in: gcc-13 (Ubuntu)
       Status: New => Confirmed

** Also affects: gcc-13 (Ubuntu Plucky)
   Importance: Undecided
       Status: New

** Also affects: gcc-13 (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Also affects: gcc-13 (Ubuntu Oracular)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2112171

Title:
  ASan detect_stack_use_after_return=1 makes vector<bool> incredibly
  slow

Status in gcc-13 package in Ubuntu:
  Confirmed
Status in gcc-13 source package in Noble:
  New
Status in gcc-13 source package in Oracular:
  New
Status in gcc-13 source package in Plucky:
  New

Bug description:
  When compiled with g++ 13.3.0-6ubuntu2~24.04 and Address Sanitizer,
  the attached code runs 60x slower (10.5 s vs 170 ms) with stack-use-
  after-return checking enabled.

  $ g++-13 -fsanitize=address -fsanitize=undefined -g -O2 tle.cpp

  It's fixed (https://gcc.gnu.org/cgit/gcc/commit/?id=aac7bb773f7d1c) in
  the releases/gcc-13 branch and will be present in GCC 13.4.

  Upstream bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120475

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