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* [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191
       [not found] <bug-23046-3350@http.gcc.gnu.org/bugzilla/>
@ 2005-10-09 15:44 ` pinskia at gcc dot gnu dot org
  2005-10-11  6:36 ` phython at gcc dot gnu dot org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-10-09 15:44 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #18 from pinskia at gcc dot gnu dot org  2005-10-09 15:44 -------
I think this was decided that this was a front-end bug.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|tree-optimization           |c++


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23046


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191
       [not found] <bug-23046-3350@http.gcc.gnu.org/bugzilla/>
  2005-10-09 15:44 ` [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191 pinskia at gcc dot gnu dot org
@ 2005-10-11  6:36 ` phython at gcc dot gnu dot org
  2005-10-31  4:15 ` mmitchel at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 5+ messages in thread
From: phython at gcc dot gnu dot org @ 2005-10-11  6:36 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #19 from phython at gcc dot gnu dot org  2005-10-11 06:36 -------
Created an attachment (id=9961)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9961&action=view)
vrp workaround

There seems to be a combination of front-end and middle-end bugs that cause
this.  The attached patch works around the problem in vrp by setting the range
to VARYING.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23046


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191
       [not found] <bug-23046-3350@http.gcc.gnu.org/bugzilla/>
  2005-10-09 15:44 ` [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191 pinskia at gcc dot gnu dot org
  2005-10-11  6:36 ` phython at gcc dot gnu dot org
@ 2005-10-31  4:15 ` mmitchel at gcc dot gnu dot org
  2005-11-08 21:10 ` dnovillo at gcc dot gnu dot org
  2005-11-08 21:16 ` dnovillo at gcc dot gnu dot org
  4 siblings, 0 replies; 5+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2005-10-31  4:15 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #20 from mmitchel at gcc dot gnu dot org  2005-10-31 04:15 -------
This is a showstopper; ICE on simple, valid code.  We need to resolve what
approach (es) to use to fix this and get it done.


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P2                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23046


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191
       [not found] <bug-23046-3350@http.gcc.gnu.org/bugzilla/>
                   ` (2 preceding siblings ...)
  2005-10-31  4:15 ` mmitchel at gcc dot gnu dot org
@ 2005-11-08 21:10 ` dnovillo at gcc dot gnu dot org
  2005-11-08 21:16 ` dnovillo at gcc dot gnu dot org
  4 siblings, 0 replies; 5+ messages in thread
From: dnovillo at gcc dot gnu dot org @ 2005-11-08 21:10 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #21 from dnovillo at gcc dot gnu dot org  2005-11-08 21:09 -------
Subject: Bug 23046

Author: dnovillo
Date: Tue Nov  8 21:09:51 2005
New Revision: 106656

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=106656
Log:
2005-11-08  James A. Morrison  <phython@gcc.gnu.org>
            Diego Novillo  <dnovillo@redhat.com>

        PR 23046
        * tree-vrp.c (register_edge_assert_for): Do not register
        always-false predicates.

testsuite/

        PR 23046
        * g++.dg/tree-ssa/pr23046.C: New test.



Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr23046.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23046


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191
       [not found] <bug-23046-3350@http.gcc.gnu.org/bugzilla/>
                   ` (3 preceding siblings ...)
  2005-11-08 21:10 ` dnovillo at gcc dot gnu dot org
@ 2005-11-08 21:16 ` dnovillo at gcc dot gnu dot org
  4 siblings, 0 replies; 5+ messages in thread
From: dnovillo at gcc dot gnu dot org @ 2005-11-08 21:16 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #22 from dnovillo at gcc dot gnu dot org  2005-11-08 21:16 -------
Fixed.  http://gcc.gnu.org/ml/gcc-patches/2005-11/msg00539.html


-- 

dnovillo at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23046


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2005-11-08 21:16 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2005-10-09 15:44 ` [Bug c++/23046] [4.1 Regression] ICE in set_value_range, at tree-vrp.c:191 pinskia at gcc dot gnu dot org
2005-10-11  6:36 ` phython at gcc dot gnu dot org
2005-10-31  4:15 ` mmitchel at gcc dot gnu dot org
2005-11-08 21:10 ` dnovillo at gcc dot gnu dot org
2005-11-08 21:16 ` dnovillo at gcc dot gnu dot org

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