https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100511
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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Keywords| |alias, missed-optimization
Severity|normal |enhancement
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So this is only because sizeof (XX) == sizeof(g) .
That is if you add a field to XX, it works correctly.
I susepct this is due to handling int can alias the access to count.
I will let someone else who understands GCC's aliasing is this is a valid thing
to optimize or not.
