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From: "mkuvyrkov at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/40815] redundant neg instruction caused by loop-invariant Date: Thu, 08 Apr 2010 08:21:00 -0000 [thread overview] Message-ID: <20100408082052.25947.qmail@sourceware.org> (raw) In-Reply-To: <bug-40815-17659@http.gcc.gnu.org/bugzilla/> ------- Comment #10 from mkuvyrkov at gcc dot gnu dot org 2010-04-08 08:20 ------- Subject: Bug 40815 Author: mkuvyrkov Date: Thu Apr 8 08:20:36 2010 New Revision: 158105 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158105 Log: PR middle-end/40815 * tree-ssa-reassoc.c (broken_up_substracts): Rename to plus_negates. (negate_value): Move code to push elements to broken_up_substracts ... (eliminate_plus_minus_pair): ... here. Push operands that have no negative pair to plus_negates. (repropagate_negates, init_reassoc, fini_reassoc): Update. PR middle-end/40815 * gcc.dg/tree-ssa/reassoc-19.c: New. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/reassoc-19.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-reassoc.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40815
next prev parent reply other threads:[~2010-04-08 8:21 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-07-21 7:15 [Bug target/40815] New: " carrot at google dot com 2009-07-21 7:15 ` [Bug target/40815] " carrot at google dot com 2009-07-21 7:23 ` steven at gcc dot gnu dot org 2009-07-21 7:35 ` carrot at google dot com 2009-07-21 9:30 ` rguenth at gcc dot gnu dot org 2009-09-18 23:46 ` [Bug middle-end/40815] " ramana at gcc dot gnu dot org 2009-12-12 1:16 ` rearnsha at gcc dot gnu dot org 2010-02-08 16:27 ` steven at gcc dot gnu dot org 2010-03-10 19:39 ` mkuvyrkov at gcc dot gnu dot org 2010-03-11 8:58 ` mkuvyrkov at gcc dot gnu dot org 2010-03-11 11:19 ` rguenth at gcc dot gnu dot org 2010-04-08 8:21 ` mkuvyrkov at gcc dot gnu dot org [this message] 2010-04-08 8:32 ` mkuvyrkov at gcc dot gnu dot org
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