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[Bug optimization/12508] [3.4 regression] weak optimization for some constants < 2^16
- From: "kazu at cs dot umass dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Dec 2003 23:20:20 -0000
- Subject: [Bug optimization/12508] [3.4 regression] weak optimization for some constants < 2^16
- References: <20031004182021.12508.gpiez@users.sourceforge.net>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From kazu at cs dot umass dot edu 2003-12-24 23:20 -------
Blame my patch.
http://gcc.gnu.org/ml/gcc-patches/2003-06/msg00163.html
Ulrich Weigand also noticed performance regression on s390.
http://gcc.gnu.org/ml/gcc-patches/2003-12/msg01663.html
I can revert my patch without breaking what I wanted to fix originally.
http://gcc.gnu.org/ml/gcc-patches/2003-12/msg01663.html
I will test my follow-up patch and submit it for approval.
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |kazu at cs dot umass dot edu
|dot org |
Status|NEW |ASSIGNED
Keywords| |patch
Summary|weak optimization for some |[3.4 regression] weak
|constants < 2^16 |optimization for some
| |constants < 2^16
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12508