[Bug tree-optimization/59617] [vectorizer] ICE in vectorizable_mask_load_store with AVX-512F's gathers enabled.

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59617

--- Comment #19 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Uroš Bizjak from comment #17)
> (In reply to Iain Sandoe from comment #14)
> > (In reply to Dominique d'Humieres from comment #13)
> > > Another option would be to add -std=c99 for darwin.
> > 
> > I would suggest that this is the Right Thing to do.
> 
> There is quite some usage of __restrict in gcc.target/i386/ directory. Why
> doesn't this problem trigger with e.g. avx2-gather-4.c, which also uses
> __restrict?

presumably, other tests don't include the system header that is the source of
the problem (which can be checked).

My understanding is that restrict is c99 (and, the addition of  -std= was only
being proposed for darwin, so other targets would be unaffected)

however, that said, I am of course open to other solutions.