https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79127
--- Comment #8 from Rainer Emrich <rai...@emrich-ebersheim.de> ---
(In reply to Jakub Jelinek from comment #6)
> Perhaps the HAVE_AVX512F configure test is too simple for the SEH purposes.
> I've tried:
> typedef double __m512d __attribute__ ((__vector_size__ (64)));
> typedef double __m256d __attribute__ ((__vector_size__ (32)));
> __m512d foo (__m512d, __m512d, __m512d, __m512d, __m512d, __m256d,
> __m512d, __m512d);
> __m512d _mm512_add (__m512d a, __m256d c)
> {
> __m512d b = __builtin_ia32_addpd512_mask (a, a, a, 1, 4);
> __m512d f = __builtin_ia32_addpd512_mask (b, a, a, 1, 4);
> __m512d g = __builtin_ia32_addpd512_mask (f, a, a, 1, 4);
> __m512d h = __builtin_ia32_addpd512_mask (g, a, a, 1, 4);
> __m512d e = foo (b, a, b, a, b, c, b, b);
> return __builtin_ia32_addpd512_mask (b, e, a, 1, 4) + f + g + h;
> }
> int
> main ()
> {
>
> ;
> return 0;
> }
>
> but that still doesn't generate any .seh_savexmm directives (at least not in
> my cross-compiler).
In my case HAVE_AVX512F is set to 1 in libgfortran/config.h.
