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[Bug tree-optimization/32183] [4.3 Regression] reassoc2 can more extra calculations into a loop
- From: "hjl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Sep 2007 06:47:06 -0000
- Subject: [Bug tree-optimization/32183] [4.3 Regression] reassoc2 can more extra calculations into a loop
- References: <bug-32183-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #31 from hjl at gcc dot gnu dot org 2007-09-08 06:47 -------
Subject: Bug 32183
Author: hjl
Date: Sat Sep 8 06:46:53 2007
New Revision: 128262
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128262
Log:
2007-09-07 Zdenek Dvorak <ook@ucw.cz>
PR tree-optimization/32183
* Makefile.in (tree-ssa-reassoc.o): Also depend on $(CFGLOOP_H).
* tree-ssa-reassoc.c: Include cfgloop.h.
(is_reassociable_op): Add a loop argument and return true only
for inside loop.
(linearize_expr): Updated.
(should_break_up_subtract): Likewise.
(linearize_expr_tree): Likewise.
(init_reassoc): Call loop_optimizer_init with
AVOID_CFG_MODIFICATIONS. Remove calculate_dominance_info call
with CDI_DOMINATORS.
(fini_reassoc): Call loop_optimizer_finalize.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/Makefile.in
trunk/gcc/tree-ssa-reassoc.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32183