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From: "ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libgomp/102838] [12 regression] Several tests SEGV in
 gomp_loop_ull_init
Date: Thu, 21 Oct 2021 14:22:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102838

--- Comment #9 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot U=
ni-Bielefeld.DE> ---
> --- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> Ok, so, first question, is GOMP_HAVE_EFFICIENT_ALIGNED_ALLOC defined in y=
our
> case?

It is since all of HAVE_ALIGNED_ALLOC, HAVE_POSIX_MEMALIGN, and
HAVE_MEMALIGN are defined in config.h.

> Can be seen e.g. from objdump -dr alloc.o and seeing if gomp_aligned_free=
 is
> just a (tail?) call to free without anything else or if it performs
>   if (ptr)
>     free (((void **) ptr)[-1]);

It's the former: just a call to free.

> Or perhaps attach preprocessed loop-ull.i and loop-ull.s.

Doing so just in case...=