[Bug bootstrap/55511] New: r193802 caused s390x bootstrap failure

[Bug bootstrap/55511] New: r193802 caused s390x bootstrap failure

[krebbel at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

             Bug #: 55511
           Summary: r193802 caused s390x bootstrap failure
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: krebbel@gcc.gnu.org


Created attachment 28817
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28817
Reduced testcase

cc1 t.c -quiet -g -O1

t.c: In function ‘__parityti2’:
t.c:23:1: internal compiler error: in vt_expand_var_loc_chain, at
var-tracking.c:8020
 }
 ^
0x80baa299 vt_expand_var_loc_chain
    /build/gcc-head/gcc/var-tracking.c:8020
0x80baafa5 vt_expand_loc_callback
    /build/gcc-head/gcc/var-tracking.c:8216
0x803166e9 cselib_expand_value_rtx_1
    /build/gcc-head/gcc/cselib.c:1683
0x803168ad cselib_expand_value_rtx_1
    /build/gcc-head/gcc/cselib.c:1721
0x803160f9 cselib_expand_value_rtx_cb(rtx_def*, bitmap_head_def*, int, rtx_def*
(*)(rtx_def*, bitmap_head_def*, int, void*), void*)
    /build/gcc-head/gcc/cselib.c:1530
0x80baa41b vt_expand_var_loc_chain
    /build/gcc-head/gcc/var-tracking.c:8054
0x80baafa5 vt_expand_loc_callback
    /build/gcc-head/gcc/var-tracking.c:8216
0x803166e9 cselib_expand_value_rtx_1
    /build/gcc-head/gcc/cselib.c:1683
0x803168ad cselib_expand_value_rtx_1
    /build/gcc-head/gcc/cselib.c:1721
0x803160f9 cselib_expand_value_rtx_cb(rtx_def*, bitmap_head_def*, int, rtx_def*
(*)(rtx_def*, bitmap_head_def*, int, void*), void*)
    /build/gcc-head/gcc/cselib.c:1530
0x80baa41b vt_expand_var_loc_chain
    /build/gcc-head/gcc/var-tracking.c:8054
0x80baafa5 vt_expand_loc_callback
    /build/gcc-head/gcc/var-tracking.c:8216
0x803166e9 cselib_expand_value_rtx_1
    /build/gcc-head/gcc/cselib.c:1683
0x803160f9 cselib_expand_value_rtx_cb(rtx_def*, bitmap_head_def*, int, rtx_def*
(*)(rtx_def*, bitmap_head_def*, int, void*), void*)
    /build/gcc-head/gcc/cselib.c:1530
0x80baa41b vt_expand_var_loc_chain
    /build/gcc-head/gcc/var-tracking.c:8054
0x80bab6fd vt_expand_1pvar
    /build/gcc-head/gcc/var-tracking.c:8331
0x80baba47 emit_note_insn_var_location
    /build/gcc-head/gcc/var-tracking.c:8385
0x80f288a3 htab_traverse_noresize
    /build/gcc-head/libiberty/hashtab.c:784
0x80f2897f htab_traverse
    /build/gcc-head/libiberty/hashtab.c:800
0x80bad69b emit_notes_for_changes
    /build/gcc-head/gcc/var-tracking.c:8749
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug bootstrap/55511] r193802 caused s390x bootstrap failure

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2012-11-28
     Ever Confirmed|0                           |1

--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-11-28 10:30:42 UTC ---
Thanks.  Is this with the first build of libgcc?  I.e. is it likely that I'll
see this with just a cross-build?

Also, can you please check whether the patch in
<http://gcc.gnu.org/ml/gcc-patches/2012-11/msg02188.html> solves the problem,
as it does for alpha-linux?

[Bug bootstrap/55511] [4.8 Regression] r193802 caused s390x bootstrap failure

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.8.0
            Summary|r193802 caused s390x        |[4.8 Regression] r193802
                   |bootstrap failure           |caused s390x bootstrap
                   |                            |failure

[Bug bootstrap/55511] [4.8 Regression] r193802 caused s390x bootstrap failure

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

--- Comment #2 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-11-28 13:36:08 UTC ---
(In reply to comment #1)
> Is this with the first build of libgcc?  I.e. is it likely that I'll
> see this with just a cross-build?
> 
> Also, can you please check whether the patch in
> <http://gcc.gnu.org/ml/gcc-patches/2012-11/msg02188.html> solves the problem,
> as it does for alpha-linux?

I'll reply myself: apparently-yes, yes and yes; cross from x86_86-linux.
And need to add "-fpreprocessed" to the cc1 command-line above or there's an
unhelpful preprocessor error.  So, once Jakub has committed that patch, please
verify that this is sufficient (besides required).  Thanks.

[Bug bootstrap/55511] [4.8 Regression] r193802 caused s390x bootstrap failure

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW

[Bug bootstrap/55511] [4.8 Regression] r193802 caused s390x bootstrap failure

[krebbel at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

--- Comment #3 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2012-11-28 14:10:24 UTC ---
(In reply to comment #2)
> (In reply to comment #1)
> > Is this with the first build of libgcc?  I.e. is it likely that I'll
> > see this with just a cross-build?
> > 
> > Also, can you please check whether the patch in
> > <http://gcc.gnu.org/ml/gcc-patches/2012-11/msg02188.html> solves the problem,
> > as it does for alpha-linux?
> 
> I'll reply myself: apparently-yes, yes and yes; cross from x86_86-linux.
> And need to add "-fpreprocessed" to the cc1 command-line above or there's an
> unhelpful preprocessor error.  So, once Jakub has committed that patch, please
> verify that this is sufficient (besides required).  Thanks.

Native build is finished as well. Jakub's patch fixes the issue.

[Bug bootstrap/55511] [4.8 Regression] r193802 caused s390x bootstrap failure

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-28 23:01:21 UTC ---
Author: jakub
Date: Wed Nov 28 23:01:03 2012
New Revision: 193911

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193911
Log:
    PR debug/36728
    PR debug/55467
    PR middle-end/55507
    PR bootstrap/55511
    * cselib.c (cselib_process_insn): If cselib_preserve_constants,
    don't reset table and exit early on volatile insns and setjmp.
    Reset table afterwards on setjmp.

    * gcc.dg/guality/pr36728-1.c: Include "../nop.h", make sure the asm
    are non-empty and add dependency between the first and second asm.
    * gcc.dg/guality/pr36728-2.c: Likewise.
    * gcc.dg/guality/pr36728-3.c: New test.
    * gcc.dg/guality/pr36728-4.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/guality/pr36728-3.c
    trunk/gcc/testsuite/gcc.dg/guality/pr36728-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cselib.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/guality/pr36728-1.c
    trunk/gcc/testsuite/gcc.dg/guality/pr36728-2.c

[Bug bootstrap/55511] [4.8 Regression] r193802 caused s390x bootstrap failure

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55511

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |jakub at gcc dot gnu.org
         Resolution|                            |FIXED

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-29 08:09:29 UTC ---
Fixed.