[Bug debug/53860] New: [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[Bug debug/53860] New: [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

             Bug #: 53860
           Summary: [4.8 Regression] ICE: in should_move_die_to_comdat, at
                    dwarf2out.c:6254 with -fkeep-inline-functions
                    -fdebug-types-section -g
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 27744
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27744
reduced testcase

Compiler output:
$ gcc -fkeep-inline-functions -fdebug-types-section -g testcase.C 
testcase.C:7:1: internal compiler error: in should_move_die_to_comdat, at
dwarf2out.c:6254
 }
 ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

(gdb) bt
#0  fancy_abort (file=0x13a48e0 "/mnt/svn/gcc-trunk/gcc/dwarf2out.c",
line=6254, function=0x13a2000 "should_move_die_to_comdat")
    at /mnt/svn/gcc-trunk/gcc/diagnostic.c:1010
#1  0x00000000008acdf1 in should_move_die_to_comdat (die=0x7ffff6ad42d0) at
/mnt/svn/gcc-trunk/gcc/dwarf2out.c:6254
#2  break_out_comdat_types (die=Unhandled dwarf expression opcode 0xfa
) at /mnt/svn/gcc-trunk/gcc/dwarf2out.c:6568
#3  0x00000000008d1103 in dwarf2out_finish (filename=<optimized out>) at
/mnt/svn/gcc-trunk/gcc/dwarf2out.c:22347
#4  0x0000000000b8c8db in compile_file () at
/mnt/svn/gcc-trunk/gcc/toplev.c:598
#5  0x0000000000b8e408 in do_compile () at /mnt/svn/gcc-trunk/gcc/toplev.c:1867
#6  toplev_main (argc=16, argv=0x7fffffffd6a8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1943
#7  0x00007ffff6f052ad in __libc_start_main () from /lib64/libc.so.6
#8  0x0000000000592811 in _start ()


Tested revisions:
r189247 - crash
4.7 r188682 - OK

[Bug debug/53860] [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.8.0

[Bug debug/53860] [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-07-05
                 CC|                            |ebotcazou at gcc dot
                   |                            |gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2012-07-05 14:00:34 UTC ---
It is caused by revision 188621:

http://gcc.gnu.org/ml/gcc-cvs/2012-06/msg00531.html

[Bug debug/53860] [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

[Bug debug/53860] [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[siddhesh at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

Siddhesh Poyarekar <siddhesh at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |siddhesh at redhat dot com

--- Comment #2 from Siddhesh Poyarekar <siddhesh at redhat dot com> 2012-11-16 03:00:28 UTC ---
(In reply to comment #1)
> It is caused by revision 188621:
> 
> http://gcc.gnu.org/ml/gcc-cvs/2012-06/msg00531.html

This was reverted with r189311, so the ICE is not reproducible anymore.

[Bug debug/53860] [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[aoliva at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

Alexandre Oliva <aoliva at gcc dot gnu.org> changed:

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

--- Comment #3 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-11-28 19:27:45 UTC ---
Does this mean the bug is fixed (i.e., it had been introduced by the reversed
patch), or just latent?

In either case, it would probably be good to have the testcase in the testsuite
so this doesn't resurface unnoticed again.  Zdenek, would you turn this into a
patch for the testsuite and submit it for inclusion?  TIA,

[Bug debug/53860] [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

H.J. Lu <hjl.tools at gmail dot com> changed:

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

--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2012-12-01 16:11:05 UTC ---
Fixed.

[Bug debug/53860] [4.8 Regression] ICE: in should_move_die_to_comdat, at dwarf2out.c:6254 with -fkeep-inline-functions -fdebug-types-section -g

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53860

--- Comment #4 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2012-12-01 16:10:44 UTC ---
Author: hjl
Date: Sat Dec  1 16:10:30 2012
New Revision: 194019

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194019
Log:
Fix a typo in PR debug/53860 ChangeLog

Modified:
    trunk/gcc/testsuite/ChangeLog