https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114908
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Thanks, and it might be enough to handle
typedef unsigned long V [[gnu::vector_size(32)]];
V load3(const unsigned long* ptr)
{
V ret = {};
__builtin_memcpy(&ret, ptr, 3 * sizeof(unsigned long));
return ret;
}
where with -O2 .optimized still has
<bb 2> [local count: 1073741824]:
ret = { 0, 0, 0, 0 };
__builtin_memcpy (&ret, ptr_3(D), 24);
_5 = ret;
ret ={v} {CLOBBER(eos)};
return _5;
and thus 'ret' not promoted to a register.
