https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67575
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-09-14
Ever confirmed|0 |1
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Actually I was wrong, it was discussed but the discussion about having it:
> TSAN will badly need similar optimization pass to what ASAN needs (after
> deferring expansion of the shadow memory checks), e.g. var++ right now
> results in __tsan_read4 (&var); followed soon by __tsan_write4 (&var);.
> With no intervening calls (we could ignore many string/memory builtins
> I guess) and no intervening atomics it should be fine to just use
> __tsan_write4 (&var); for that, right?
Right.
https://gcc.gnu.org/ml/gcc-patches/2012-11/msg02430.html
