https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66661
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Pádraig Brady from comment #4)
> I should note that I worked around the issue by increasing the allocation
> for the structure on the heap up to a multiple of alignof(the_struct). See:
> http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=commitdiff;h=49078a78
That is not just a workaround but a correct patch. The size of the memory
allocated needs to be a multiply of the alignment of the struct to be valid.
The reason why it works for you with your reduced testcase is because the
alignment of the struct is 1.
