[Bug gcov-profile/58306] Broken profiling for unrar sources: error: corrupted value profile: value profile counter (X out of Y) inconsistent with basic-block count

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58306

--- Comment #22 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Artem S. Tashkinov from comment #21)
> (In reply to Martin Liška from comment #20)
> > > Do I understand the patch correctly that it requires
> > > "-fprofile-update=atomic" option in order to eliminate this bug?
> > 
> > Exactly, I hope I'll be able to merge the whole patchset (5) to mainline
> > soon.
> 
> What's the rationale behind this decision? This looks a bit counter
> intuitive and counter productive. People just enable profiling and don't
> think twice about extra requirements it might ensue.

Sure, as Nathan suggested, we'll select the proper default value according to
-pthread argument.