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[Bug regression/39914] [4.4/4.5 Regression] 96% performance regression in floating point code; part of the problem started 2009/03/12-13
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Apr 2009 19:04:13 -0000
- Subject: [Bug regression/39914] [4.4/4.5 Regression] 96% performance regression in floating point code; part of the problem started 2009/03/12-13
- References: <bug-39914-271@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from bonzini at gnu dot org 2009-04-27 19:04 -------
Yeah, it's basically destroying caller-save optimization.
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |4.4.0 4.5.0
Known to work| |4.3.3
Summary|96% performance regression |[4.4/4.5 Regression] 96%
|in floating point code; part|performance regression in
|of the problem started |floating point code; part of
|2009/03/12-13 |the problem started
| |2009/03/12-13
Target Milestone|--- |4.4.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39914