[Bug target/49842] New: sparc64-portbld-freebsd9.0 internal compiler error: in connect_traces, at dwarf2cfi.c:2632

["mexas at bristol dot ac.uk" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49842

           Summary: sparc64-portbld-freebsd9.0  internal compiler error:
                    in connect_traces, at dwarf2cfi.c:2632
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: mexas@bristol.ac.uk


I've gcc-4.7.0.20110709 built fine on sparc64 FreeBSD 9.0.
Updating to 20110723 snapshot I get this error:

/usr/ports/lang/gcc47/work/build/./gcc/xgcc
-B/usr/ports/lang/gcc47/work/build/./gcc/
-B/usr/local/sparc64-portbld-freebsd9.0/bin/
-B/usr/local/sparc64-portbld-freebsd9.0/lib/ -isystem
/usr/local/sparc64-portbld-freebsd9.0/include -isystem
/usr/local/sparc64-portbld-freebsd9.0/sys-include    -g -O2 -pipe
-I/usr/local/include -fno-strict-aliasing -O2  -g -O2 -pipe
-I/usr/local/include -fno-strict-aliasing -DIN_GCC   -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition 
-isystem ./include   -fPIC -pthread -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-fbuilding-libgcc -fno-stack-protector   -I. -I. -I../.././gcc
-I../.././../gcc-4.7-20110723/libgcc -I../.././../gcc-4.7-20110723/libgcc/.
-I../.././../gcc-4.7-20110723/libgcc/../gcc
-I../.././../gcc-4.7-20110723/libgcc/../include  -DHAVE_CC_TLS -DUSE_EMUTLS -o
_lshrdi3.o -MT _lshrdi3.o -MD -MP -MF _lshrdi3.dep -DL_lshrdi3 -c
../.././../gcc-4.7-20110723/libgcc/../gcc/libgcc2.c \
  -fvisibility=hidden -DHIDE_EXPORTS
../.././../gcc-4.7-20110723/libgcc/../gcc/libgcc2.c: In function '__lshrti3':
../.././../gcc-4.7-20110723/libgcc/../gcc/libgcc2.c:427:1: internal compiler
error: in connect_traces, at dwarf2cfi.c:2632
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
gmake[3]: *** [_lshrdi3.o] Error 1
gmake[3]: Leaving directory
`/usr/ports/lang/gcc47/work/build/sparc64-portbld-freebsd9.0/libgcc'

Surprisingly, it builds fine on ia64 FreeBSD.

I see in sparc64-portbld-freebsd9.0/libgcc/config.log:

conftest.c:58:1: internal compiler error: in connect_traces, at
dwarf2cfi.c:2632

config.log is attached.