https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108910
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
As I've tried to explain in the past, C/C++ considers float * and float
*__attribute__((aligned (64))) types to be compatible, similarly to int and int
__attribute__((aligned (64))), so in calling convention one should ignore
alignment on scalar types of passed arguments at least, because they can be
pretty much random.
Though
extern void foo (long, long, long);
void baz (void *);
void
bar (void *p)
{
long __attribute__((aligned (64))) q = 1;
asm volatile ("" : "+r" (q));
foo (0.0L, q, q);
}
doesn't ICE.
