This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/31090] Revision 121302 causes 30% performance regression
- From: "hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Mar 2007 17:40:50 -0000
- Subject: [Bug tree-optimization/31090] Revision 121302 causes 30% performance regression
- References: <bug-31090-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from hjl at lucon dot org 2007-03-09 17:40 -------
Created an attachment (id=13180)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13180&action=view)
A breakdown testcase
xxx.f90 is the problem. -fdump-tree-all shows that revision 121302
generates very different alias info.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31090