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[Bug target/27855] reassociation pass produces ~30% slower matrix multiplication code
- From: "uros at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Jul 2007 19:22:14 -0000
- Subject: [Bug target/27855] reassociation pass produces ~30% slower matrix multiplication code
- References: <bug-27855-1649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #16 from uros at gcc dot gnu dot org 2007-07-09 19:22 -------
Subject: Bug 27855
Author: uros
Date: Mon Jul 9 19:22:03 2007
New Revision: 126491
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126491
Log:
PR target/27855
* doc/extend.texi: Add ftree-reassoc flag.
* common.opt (ftree-reassoc): New flag.
* tree-ssa-reassoc.c (gate_tree_ssa_reassoc): New static function.
(struct tree_opt_pass pass_reassoc): Use gate_tree_ssa_reassoc.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/common.opt
trunk/gcc/doc/invoke.texi
trunk/gcc/tree-ssa-reassoc.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855