This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/21456] compile time regression(s) after gcc-4.0-20050326, 4.0 (+300%) 4.1 (+500%)
- From: "rguenth 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 Sep 2007 14:33:35 -0000
- Subject: [Bug tree-optimization/21456] compile time regression(s) after gcc-4.0-20050326, 4.0 (+300%) 4.1 (+500%)
- References: <bug-21456-6020@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from rguenth at gcc dot gnu dot org 2007-09-20 14:33 -------
Timings at -O2:
2.95: 10s
3.3: 2s
3.4: 3s
4.0: 10s
4.1: 7.5s
4.2: 8.5s
trunk: 5.5s
I don't think we will ever get back to 3.3 speed. At -O0 trunk is faster than
3.3 by 10%.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21456