[Bug bootstrap/49584] New: [4.4.7 regression] bootstrap failure on m68k-linux: segfault compiling _muldi3

["mikpe at it dot uu.se" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49584

           Summary: [4.4.7 regression] bootstrap failure on m68k-linux:
                    segfault compiling _muldi3
           Product: gcc
           Version: 4.4.7
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: mikpe@it.uu.se


gcc-4.4-20110628 fails to bootstrap on m68k-linux:

Checking multilib configuration for libgcc...
make[3]: Entering directory
`/mnt/scratch/objdir44/m68k-unknown-linux-gnu/libgcc'
# If this is the top-level multilib, build all the other
# multilibs.
/mnt/scratch/objdir44/./gcc/xgcc -B/mnt/scratch/objdir44/./gcc/
-B/mnt/scratch/install44/m68k-unknown-linux-gnu/bin/
-B/mnt/scratch/install44/m68k-unknown-linux-gnu/lib/ -isystem
/mnt/scratch/install44/m68k-unknown-linux-gnu/include -isystem
/mnt/scratch/install44/m68k-unknown-linux-gnu/sys-include -g -O2 -O2  -g -O2
-DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wcast-qual -Wold-style-definition  -isystem ./include  -fPIC -g
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I.
-I../.././gcc -I/mnt/scratch/gcc-4.4-20110621/libgcc
-I/mnt/scratch/gcc-4.4-20110621/libgcc/.
-I/mnt/scratch/gcc-4.4-20110621/libgcc/../gcc
-I/mnt/scratch/gcc-4.4-20110621/libgcc/../include  -DHAVE_CC_TLS -o _muldi3.o
-MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c
/mnt/scratch/gcc-4.4-20110621/libgcc/../gcc/libgcc2.c \
          -fvisibility=hidden -DHIDE_EXPORTS
In file included from /mnt/scratch/gcc-4.4-20110621/libgcc/../gcc/tsystem.h:44,
                 from /mnt/scratch/gcc-4.4-20110621/libgcc/../gcc/libgcc2.c:29:
/mnt/scratch/objdir44/./gcc/include/stddef.h:149: 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[3]: *** [_muldi3.o] Error 1
make[3]: Leaving directory
`/mnt/scratch/objdir44/m68k-unknown-linux-gnu/libgcc'
make[2]: *** [all-stage1-target-libgcc] Error 2
make[2]: Leaving directory `/mnt/scratch/objdir44'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/mnt/scratch/objdir44'
make: *** [all] Error 2

The previous weekly snapshot, 4.4-20110621, bootstrapped fine.

I wasn't able to reproduce the error with 4.4-20110628 is built as a cross
hosted on i686-linux, so I suspect a miscompilation in stage2 or stage3.

I'll try a new bootstrap with r175603 reverted.