------- Comment #2 from ubizjak at gmail dot com 2010-04-19 12:53 -------
(In reply to comment #0)
> If I take off -msse2, I get this:
>
> movd (%eax), %mm0
> movd 4(%eax), %mm1
> punpcklbw %mm1, %mm0
The code above is produced _without_ SSE (-mno-sse), since with -mno-sse2, you
will get:
movss (%eax), %xmm0
movlps %xmm0, -8(%ebp)
movss 4(%eax), %xmm0
movq -8(%ebp), %mm0
movlps %xmm0, -16(%ebp)
punpcklbw -16(%ebp), %mm0
So, effectively the same code as with SSE2.
--
ubizjak at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-04-19 12:53:43
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43743
