[Bug c++/49126] New: timevar_stack faild because define_label

[Bug c++/49126] New: timevar_stack faild because define_label

[zgss278 at 163 dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49126

           Summary: timevar_stack faild because define_label
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zgss278@163.com


when source code like this,I think there is a bug:
int f()
{
goto cleanup:
}
then compiler will go along this path:
|tree poplevel (int keep, int reverse, int functionbody)
-->timevar_start (TV_NAME_LOOKUP);xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-->....                                
--> pop_labels (block);
|static void pop_labels (tree block)
----> htab_traverse (named_labels, pop_labels_1, block);
|static int pop_labels_1 (void **slot, void *data)
------>pop_label (ent->label_decl, NULL_TREE);
|static void pop_label (tree label, tree old_value)
--------> define_label (location, DECL_NAME (label));
|tree define_label (location_t location, tree name)
----------> timevar_start (TV_NAME_LOOKUP);xxxxxxxxxxxxxxxxxxxxx
so at last in:
|void timevar_start (timevar_id_t timevar)
-------------->  gcc_assert (!tv->standalone);
failed!

[Bug c++/49126] timevar_stack faild because define_label

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49126

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.07.24 20:51:17
     Ever Confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-07-24 20:51:17 UTC ---
Confirmed.

>I think there is a bug:
When there is an internal compiler error, it is always a bug.

[Bug c++/49126] timevar_stack faild because define_label

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49126

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu.org

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-09-25 12:26:18 UTC ---
On x86_64-linux, I don't see any internal compiler error compiling this. Please
double check.

[Bug c++/49126] timevar_stack faild because define_label

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49126

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-09-28 16:29:57 UTC ---
Cannot reproduce.

[Bug c++/49126] timevar_stack faild because define_label

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49126

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|WORKSFORME                  |DUPLICATE

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-16 20:19:56 UTC ---
Marking this as a dup of bug 52248.
I can still reproduce this bug in 4.7.0 20120123.

*** This bug has been marked as a duplicate of bug 52248 ***