[Bug c/41903] New: Segmentation fault in bitmap_clear

[Bug c/41903] New: Segmentation fault in bitmap_clear

[dcb314 at hotmail dot com]

I just tried to compile a snapshot of Open Office
with the 4.5 snapshot 20091015

The compiler said

../../../js/src/jsinterp.c: In function 'js_Interpret':
../../../js/src/jsinterp.c:6226:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source code attached. Flag -O required.

Here is valgrind helping out with a stack backtrace

==25608== Invalid read of size 8
==25608==    at 0x527610: bitmap_clear (bitmap.c:297)
==25608==    by 0x6D4F8D: move_loop_invariants (loop-invariant.c:1559)
==25608==  Address 0x78 is not stack'd, malloc'd or (recently) free'd


-- 
           Summary: Segmentation fault in bitmap_clear
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dcb314 at hotmail dot com
  GCC host triplet: x86_64-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903

[Bug c/41903] Segmentation fault in bitmap_clear

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-11-02 10:29 -------
preprocessed source missing


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903

[Bug c/41903] Segmentation fault in bitmap_clear

[dcb314 at hotmail dot com]

------- Comment #2 from dcb314 at hotmail dot com  2009-11-02 13:00 -------
Created an attachment (id=18948)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18948&action=view)
C source code


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903

[Bug rtl-optimization/41903] [4.5 Regression] Segmentation fault in bitmap_clear

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
          Component|c                           |rtl-optimization
           Keywords|                            |ice-on-valid-code
            Summary|Segmentation fault in       |[4.5 Regression]
                   |bitmap_clear                |Segmentation fault in
                   |                            |bitmap_clear
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903

[Bug rtl-optimization/41903] [4.5 Regression] Segmentation fault in bitmap_clear

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-11-04 22:45:09
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903

[Bug rtl-optimization/41903] [4.5 Regression] Segmentation fault in bitmap_clear

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-11-04 23:24 -------
I'm reducing this one for a C testcase.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903

[Bug rtl-optimization/41903] [4.5 Regression] Segmentation fault in bitmap_clear

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-11-05 15:48 -------
Created an attachment (id=18973)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18973&action=view)
somewhat reduced testcase

It resists auto-reducing...  PR41928 has the nicest testcase sofar (though
fortran).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903

[Bug rtl-optimization/41903] [4.5 Regression] Segmentation fault in bitmap_clear

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-11-07 23:27 -------


*** This bug has been marked as a duplicate of 41928 ***


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rguenth at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41903