[Bug bootstrap/43767] New: [4.6 regression] Failed to bootstrap

[Bug bootstrap/43767] New: [4.6 regression] Failed to bootstrap

[hjl dot tools at gmail dot com]

On Linux/ia64, revision 158417 gave:

/../src-trunk/libdecnumber -I.  -c
../../src-trunk/libdecnumber/dpd/decimal128.c../../src-trunk/libdecnumber/dpd/decimal128.c:
In function 'decimal128ToString':
../../src-trunk/libdecnumber/dpd/decimal128.c:441:3: 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.
make[6]: *** [decimal128.o] Error 1
make[6]: Leaving directory `/export/gnu/import/svn/gcc-test/bld/libdecnumber'
make[5]: *** [all-stage2-libdecnumber] Error 2

Revision 158397 is OK.


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           Summary: [4.6 regression] Failed to bootstrap
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Failed to bootstrap

[rguenth at gcc dot gnu dot org]

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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[hjl dot tools at gmail dot com]

------- Comment #1 from hjl dot tools at gmail dot com  2010-04-16 14:37 -------
Revision 158401:

http://gcc.gnu.org/ml/gcc-cvs/2010-04/msg00507.html

is the cause.


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hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at redhat dot com
            Summary|[4.6 regression] Failed to  |[4.6 regression] Revision
                   |bootstrap                   |158401 failed to bootstrap


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2010-04-16 15:13 -------
What stage is that?  stage1 or something later?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[hjl dot tools at gmail dot com]

------- Comment #3 from hjl dot tools at gmail dot com  2010-04-16 15:32 -------
(In reply to comment #2)
> What stage is that?  stage1 or something later?
> 

It failed at the end of stage 2:

make[4]: *** [decimal128.o] Error 1
make[3]: *** [all-stage2-libdecnumber] Error 2
make[2]: *** [stage2-bubble] Error 2
make[1]: *** [bootstrap] Error 2
make: *** [bootstrap] Error 2


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2010-04-16 17:42 -------
Created an attachment (id=20401)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20401&action=view)
gcc46-pr43767.patch

And here is untested fix.


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jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2010-04-16 17:41 -------
That's actually the very beginning of stage2 (i.e. what crashes is stage1 gcc,
not stage2 gcc).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[hjl dot tools at gmail dot com]

------- Comment #6 from hjl dot tools at gmail dot com  2010-04-16 18:08 -------
(In reply to comment #5)
> Created an attachment (id=20401)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20401&action=view) [edit]
> gcc46-pr43767.patch
> 
> And here is untested fix.
> 

It passed the failed part. I will do a full boostrap. Thanks.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2010-04-16 21:43 -------
Subject: Bug 43767

Author: jakub
Date: Fri Apr 16 21:43:36 2010
New Revision: 158450

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158450
Log:
        PR bootstrap/43767
        * alias.c (memrefs_conflict_p): Don't crash if CSELIB_VAL_PTR is NULL.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/alias.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767

[Bug bootstrap/43767] [4.6 regression] Revision 158401 failed to bootstrap

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2010-06-24 11:33 -------
Fixed.


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jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43767