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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/50904] [4.7 regression] pessimization when -fno-protect-parens is enabled by -Ofast
Date: Mon, 05 Dec 2011 14:38:00 -0000 [thread overview]
Message-ID: <bug-50904-4-kH1BLGPdpH@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-50904-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50904
--- Comment #45 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-05 14:36:48 UTC ---
Author: rguenth
Date: Mon Dec 5 14:36:44 2011
New Revision: 182010
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182010
Log:
2011-12-05 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50904
* tree-ssa-loop-im.c (struct mem_ref): Remove vops member.
(MEM_ANALYZABLE): New.
(memory_references): Remove clobbered_vops and vop_ref_map
members, add all_refs_stored_in_loop member.
(memref_free): Adjust.
(mem_ref_alloc): Likewise.
(gather_mem_refs_stmt): Do not record clobbers, instead
record refs for unanalyzable stmts.
(gather_mem_refs_in_loops): Do not propagate clobbers.
(struct vop_to_refs_elt, vtoe_hash, vtoe_eq, vtoe_free,
record_vop_access, get_vop_accesses, get_vop_stores,
add_vop_ref_mapping): Remove.
(create_vop_ref_mapping_loop): Adjust to simply record all
stores.
(analyze_memory_references): Adjust.
(refs_independent_p): Check for not analyzable refs.
(can_sm_ref_p): Likewise.
(ref_indep_loop_p_1): Simplify.
(tree_ssa_lim_finalize): Adjust.
* tree-ssa-loop-im.c (stmt_cost): Simplify, use LIM_EXPENSIVE
rather than magic constants. Assign zero cost to PAREN_EXPR
and SSA_NAME copies. Assign cost proportional to the vector
size for vector constructors.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-loop-im.c
next prev parent reply other threads:[~2011-12-05 14:38 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-28 17:19 [Bug rtl-optimization/50904] New: Induct benchmark of polyhedron slows down " venkataramanan.kumar.gnu at gmail dot com
2011-10-28 19:14 ` [Bug rtl-optimization/50904] " dominiq at lps dot ens.fr
2011-10-30 9:41 ` rguenth at gcc dot gnu.org
2011-10-30 9:41 ` rguenth at gcc dot gnu.org
2011-10-30 11:25 ` dominiq at lps dot ens.fr
2011-10-30 11:35 ` dominiq at lps dot ens.fr
2011-11-01 13:53 ` ebotcazou at gcc dot gnu.org
2011-11-02 5:51 ` venkataramanan.kumar.gnu at gmail dot com
2011-11-04 21:55 ` ebotcazou at gcc dot gnu.org
2011-11-05 11:54 ` [Bug rtl-optimization/50904] [4.7 regression] pessimization " rguenth at gcc dot gnu.org
2011-11-07 0:33 ` ebotcazou at gcc dot gnu.org
2011-11-08 0:43 ` ebotcazou at gcc dot gnu.org
2011-11-09 9:03 ` ebotcazou at gcc dot gnu.org
2011-11-09 10:40 ` venkataramanan.kumar.gnu at gmail dot com
2011-11-11 23:04 ` venkataramanan.kumar.gnu at gmail dot com
2011-11-12 17:22 ` [Bug tree-optimization/50904] " ebotcazou at gcc dot gnu.org
2011-11-19 7:18 ` venkataramanan.kumar.gnu at gmail dot com
2011-11-19 9:09 ` ebotcazou at gcc dot gnu.org
2011-12-01 8:51 ` rguenther at suse dot de
2011-12-01 19:53 ` [Bug rtl-optimization/50904] " ebotcazou at gcc dot gnu.org
2011-12-02 9:49 ` rguenther at suse dot de
2011-12-02 10:56 ` ebotcazou at gcc dot gnu.org
2011-12-02 11:51 ` rguenth at gcc dot gnu.org
2011-12-02 14:04 ` burnus at gcc dot gnu.org
2011-12-02 14:32 ` rguenther at suse dot de
2011-12-02 14:41 ` burnus at gcc dot gnu.org
2011-12-02 15:04 ` rguenther at suse dot de
2011-12-02 16:03 ` burnus at gcc dot gnu.org
2011-12-02 16:13 ` howarth at nitro dot med.uc.edu
2011-12-02 16:15 ` rguenther at suse dot de
2011-12-02 16:30 ` burnus at gcc dot gnu.org
2011-12-02 16:33 ` rguenther at suse dot de
2011-12-02 16:38 ` dominiq at lps dot ens.fr
2011-12-02 16:47 ` dominiq at lps dot ens.fr
2011-12-02 17:07 ` burnus at gcc dot gnu.org
2011-12-02 21:21 ` ebotcazou at gcc dot gnu.org
2011-12-03 14:55 ` dominiq at lps dot ens.fr
2011-12-05 8:19 ` rguenther at suse dot de
2011-12-05 8:27 ` rguenther at suse dot de
2011-12-05 9:21 ` ebotcazou at gcc dot gnu.org
2011-12-05 9:57 ` rguenther at suse dot de
2011-12-05 10:13 ` dominiq at lps dot ens.fr
2011-12-05 10:21 ` rguenth at gcc dot gnu.org
2011-12-05 10:28 ` [Bug tree-optimization/50904] " ebotcazou at gcc dot gnu.org
2011-12-05 11:13 ` rguenth at gcc dot gnu.org
2011-12-05 14:38 ` rguenth at gcc dot gnu.org [this message]
2011-12-05 14:40 ` rguenth at gcc dot gnu.org
2011-12-05 17:30 ` ebotcazou at gcc dot gnu.org
2011-12-05 17:59 ` dominiq at lps dot ens.fr
2011-12-06 10:00 ` venkataramanan.kumar.gnu at gmail dot com
2011-12-07 13:21 ` venkataramanan.kumar.gnu at gmail dot com
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