See pr 33790.
Sent from my iPhone
On Mar 19, 2008, at 17:04, "ubizjak at gmail dot com" <[EMAIL PROTECTED]
> wrote:
------- Comment #30 from ubizjak at gmail dot com 2008-03-20 00:04
-------
(In reply to comment #28)
(In reply to comment #27)
The store is not useless. Reload from "_w" is how gcc handles
double stores
nowadays and is not mmx specific. It looks that some pass forgot
to check where
the value came from.
Do you happen to know if there are two different modes at work
here? If so
there are patches which fix this up in DSE and post-reload CSE.
Yes, from comment #24 (slightly changed):
typedef short mmxw __attribute__ ((vector_size (8)));
typedef int mmxdw __attribute__ ((vector_size (8)));
mmxdw dw;
mmxw w;
so, we have V4HI and V2SI.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14552
