https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119982
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=60749
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #2)
>
> and nothing in the RTL pipeline sees to "fix" this - forwprop or
> now late_combine comes to my mind (RTL combine doesn't work across
> BBs either).
That is because both are very conserative when it comes to volatile mem. See PR
60749 (and others).
