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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/54498] [4.6/4.7/4.8 Regression] incorrect code generation from g++ -O
Date: Thu, 06 Sep 2012 15:20:00 -0000	[thread overview]
Message-ID: <bug-54498-4-66HdzRON9d@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-54498-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54498

--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-06 15:20:29 UTC ---
Author: rguenth
Date: Thu Sep  6 15:20:24 2012
New Revision: 191031

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191031
Log:
2012-09-06  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/54498
    * tree-ssa-alias.h (get_continuation_for_phi): Add flag to
    abort when reaching an already visited region.
    * tree-ssa-alias.c (maybe_skip_until): Likewise.  And do it.
    (get_continuation_for_phi_1): Likewise.
    (walk_non_aliased_vuses): When we translated the reference,
    abort when we re-visit a region.
    * tree-ssa-pre.c (translate_vuse_through_block): Adjust.

Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/tree-ssa-alias.c
    branches/gcc-4_7-branch/gcc/tree-ssa-alias.h
    branches/gcc-4_7-branch/gcc/tree-ssa-pre.c


  parent reply	other threads:[~2012-09-06 15:20 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-05 21:50 [Bug c++/54498] New: incorrect code generation from g++ -O on x86_64 stevenj at alum dot mit.edu
2012-09-05 22:22 ` [Bug tree-optimization/54498] [4.7/4.8 Regression] incorrect code generation from g++ -O pinskia at gcc dot gnu.org
2012-09-06  9:58 ` rguenth at gcc dot gnu.org
2012-09-06 10:21 ` rguenth at gcc dot gnu.org
2012-09-06 12:22 ` hjl.tools at gmail dot com
2012-09-06 13:54 ` [Bug tree-optimization/54498] [4.6/4.7/4.8 " rguenth at gcc dot gnu.org
2012-09-06 14:48 ` rguenth at gcc dot gnu.org
2012-09-06 15:20 ` rguenth at gcc dot gnu.org [this message]
2012-09-07  8:20 ` [Bug tree-optimization/54498] [4.6 " rguenth at gcc dot gnu.org
2013-04-12 16:30 ` jakub at gcc dot gnu.org
2023-03-27 12:32 ` cvs-commit at gcc dot gnu.org

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