[Bug bootstrap/49830] New: [4.7 regression] m68k-linux bootstrap failure due to ICE in dwarf2out_notice_stack_adjust

[Bug bootstrap/49830] New: [4.7 regression] m68k-linux bootstrap failure due to ICE in dwarf2out_notice_stack_adjust

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49830

           Summary: [4.7 regression] m68k-linux bootstrap failure due to
                    ICE in dwarf2out_notice_stack_adjust
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: mikpe@it.uu.se


Created attachment 24819
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24819
reduced test case, ICEs with -O -g

gcc-4.7-20110723 fails to build on m68k-linux with:

/tmp/objdir/./gcc/xgcc -B/tmp/objdir/./gcc/
-B/home/mikpe/pkgs/linux-x86/cross-m68k/m68k-unknown-linux/bin/
-B/home/mikpe/pkgs/linux-x86/cross-m68k/m68k-unknown-linux/lib/ -isystem
/home/mikpe/pkgs/linux-x86/cross-m68k/m68k-unknown-linux/include -isystem
/home/mikpe/pkgs/linux-x86/cross-m68k/m68k-unknown-linux/sys-include    -g -O2
-O2  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition 
-isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector -Dinhibit_libc  -I. -I. -I../.././gcc
-I/tmp/gcc-4.7-20110723/libgcc -I/tmp/gcc-4.7-20110723/libgcc/.
-I/tmp/gcc-4.7-20110723/libgcc/../gcc -I/tmp/gcc-4.7-20110723/libgcc/../include
 -DHAVE_CC_TLS  -o _fixsfdi.o -MT _fixsfdi.o -MD -MP -MF _fixsfdi.dep
-DL_fixsfdi -c /tmp/gcc-4.7-20110723/libgcc/../gcc/libgcc2.c \
          -fvisibility=hidden -DHIDE_EXPORTS
/tmp/gcc-4.7-20110723/libgcc/../gcc/libgcc2.c: In function '__fixsfdi':
/tmp/gcc-4.7-20110723/libgcc/../gcc/libgcc2.c:1393:1: internal compiler error:
in dwarf2out_notice_stack_adjust, at dwarf2cfi.c:1012
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [_fixsfdi.o] Error 1
make[2]: Leaving directory `/tmp/objdir/m68k-unknown-linux/libgcc'
make[1]: *** [all-target-libgcc] Error 2
make[1]: Leaving directory `/tmp/objdir'
make: *** [all] Error 2

4.7-20110716 built fine.

[Bug debug/49830] [4.7 regression] m68k-linux bootstrap failure due to ICE in dwarf2out_notice_stack_adjust

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49830

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |build, ice-on-valid-code
          Component|bootstrap                   |debug
   Target Milestone|---                         |4.7.0

[Bug debug/49830] [4.7 regression] m68k-linux bootstrap failure due to ICE in dwarf2out_notice_stack_adjust

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49830

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2011.07.25 01:10:16
         AssignedTo|unassigned at gcc dot       |rth at gcc dot gnu.org
                   |gnu.org                     |
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Henderson <rth at gcc dot gnu.org> 2011-07-25 01:10:16 UTC ---
Mine.

[Bug debug/49830] [4.7 regression] m68k-linux bootstrap failure due to ICE in dwarf2out_notice_stack_adjust

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49830

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |WAITING

--- Comment #2 from Richard Henderson <rth at gcc dot gnu.org> 2011-07-25 18:26:39 UTC ---
I can't reproduce this now.
It's possible this was a duplicate of PR49825, now fixed.
Please try again and let me know if the problem persists.

[Bug debug/49830] [4.7 regression] m68k-linux bootstrap failure due to ICE in dwarf2out_notice_stack_adjust

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49830

Mikael Pettersson <mikpe at it dot uu.se> changed:

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

--- Comment #3 from Mikael Pettersson <mikpe at it dot uu.se> 2011-07-25 19:26:37 UTC ---
Trunk at r176765 works.  Reverting r176729 and r176726 (PR49825 fixes) makes
the original ICE reappear.

*** This bug has been marked as a duplicate of bug 49825 ***