https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80952
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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Keywords| |missed-optimization
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I believe threadsafe counters are now used by default when you use -pthread
(which -fopenmp enables IIRC). For counters in loops that is quite harmful,
mitigation was discussed but final implementation did not happen (yet). You
can override
this by adding
-fprofile-update=single
