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From: "ian at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/31522] False overflow warning with phi nodes
Date: Tue, 17 Apr 2007 05:33:00 -0000	[thread overview]
Message-ID: <20070417053349.5786.qmail@sourceware.org> (raw)
In-Reply-To: <bug-31522-6528@http.gcc.gnu.org/bugzilla/>



------- Comment #10 from ian at gcc dot gnu dot org  2007-04-17 06:33 -------
Subject: Bug 31522

Author: ian
Date: Tue Apr 17 06:33:38 2007
New Revision: 123908

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=123908
Log:
./:
        PR tree-optimization/31522
        * tree-vrp.c (vr_phi_edge_counts): New static variable.
        (vrp_initialize): Allocate vr_phi_edge_counts.
        (vrp_visit_phi_node): Don't push to infinity if we saw a new
        executable edge.  Drop test for all constants.
        (vrp_finalize): Free vrp_phi_edge_counts.
testsuite/:
        PR tree-optimization/31522
        * gcc.dg/Wstrict-overflow-16.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/Wstrict-overflow-16.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31522


  parent reply	other threads:[~2007-04-17  5:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-10  7:28 [Bug tree-optimization/31522] New: [4.3 Regression] False overflow warning with division pinskia at gcc dot gnu dot org
2007-04-10  7:28 ` [Bug tree-optimization/31522] " pinskia at gcc dot gnu dot org
2007-04-10  7:30 ` pinskia at gcc dot gnu dot org
2007-04-10  7:57 ` [Bug tree-optimization/31522] [4.3 Regression] False overflow warning with division phi nodes pinskia at gcc dot gnu dot org
2007-04-10 12:39 ` [Bug tree-optimization/31522] [4.3 Regression] False overflow warning with " rguenth at gcc dot gnu dot org
2007-04-11  5:34 ` [Bug tree-optimization/31522] " pinskia at gcc dot gnu dot org
2007-04-11  6:15 ` ian at airs dot com
2007-04-11  6:38 ` pinskia at gcc dot gnu dot org
2007-04-11  7:04 ` ian at airs dot com
2007-04-11  8:14 ` rguenth at gcc dot gnu dot org
2007-04-17  5:33 ` ian at gcc dot gnu dot org [this message]
2007-04-17 18:09 ` ian at airs dot com

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