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[Bug target/25500] REGREGRESSION: SSE2 vectorized code is many times slower on 4.x.x than on 3.4.4
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Dec 2005 05:55:43 -0000
- Subject: [Bug target/25500] REGREGRESSION: SSE2 vectorized code is many times slower on 4.x.x than on 3.4.4
- References: <bug-25500-6649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from pinskia at gcc dot gnu dot org 2005-12-20 05:55 -------
I cannot reproduce this on an Athlon 64 running in either 32 or 64 bit mode.
Everything I tried shows that 4.x is actually faster than 3.4.4.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c |target
Summary|REGRESSION: SSE2 vectorized |REGREGRESSION: SSE2
|code is many times slower on|vectorized code is many
|4.x.x than on 3.4.4 |times slower on 4.x.x than
| |on 3.4.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25500