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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] [4.7/4.8 Regression] incorrect code generation from g++ -O
Date: Thu, 06 Sep 2012 10:21:00 -0000	[thread overview]
Message-ID: <bug-54498-4-mncgt3X3QM@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 #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-06 10:21:36 UTC ---
Testing

Index: gcc/tree-ssa-alias.c
===================================================================
--- gcc/tree-ssa-alias.c        (revision 191016)
+++ gcc/tree-ssa-alias.c        (working copy)
@@ -2094,7 +2094,10 @@ walk_non_aliased_vuses (ao_ref *ref, tre
              /* Lookup succeeded.  */
              else if (res != NULL)
                break;
-             /* Translation succeeded, continue walking.  */
+             /* Translation succeeded, continue walking.  We have to
+                again visit cycles though.  */
+             if (visited)
+               bitmap_clear (visited);
            }
          vuse = gimple_vuse (def_stmt);
        }


  parent reply	other threads:[~2012-09-06 10:21 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 [this message]
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
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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