------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-27
14:33 -------
(In reply to comment #4)
> I think that following example wins the contest:
>
> vector float f(void) { return (vector float){ a, a, b, b}; }
For this, it is a different bug. The issue with the above is that
ix86_expand_vector_init_duplicate check
for mmx_okay is bad.
Currently, we have
if (!mmx_ok && !TARGET_SSE)
but I if I change it to:
if (!mmx_ok)
we get:
movss _a, %xmm0
movss _b, %xmm1
unpcklps %xmm0, %xmm0
unpcklps %xmm1, %xmm1
movlhps %xmm1, %xmm0
Which looks ok to me. That testcase should be opened into another bug as it is
obviously wrong.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24073
