[Bug c++/51221] New: Cross GCC for AIX fails during bootstrap process

["basil at list dot ru" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51221

             Bug #: 51221
           Summary: Cross GCC for AIX fails during bootstrap process
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: basil@list.ru
              Host: x86_64-linux-gnu
            Target: powerpc-ibm-aix5.2.0.0


Created attachment 25860
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25860
preprocessed file

GCC was configured with
/emc/sukhav/cross/gcc-4.6.2//configure --prefix=/emc/sukhav/cross/aix/gcc462
--with-sysroot=/emc/sukhav/cross/aix/sysroot --target=powerpc-ibm-aix5.2.0.0
--with-gnu-as --with-gnu-ld --enable-languages=c,c++

Bootstrap failes with
/emc/sukhav/cross/aix/gcc462/temp/./gcc/xgcc
-B/emc/sukhav/cross/aix/gcc462/temp/./gcc/
-B/emc/sukhav/cross/aix/gcc462/powerpc-ibm-aix5.2.0.0/bin/
-B/emc/sukhav/cross/aix/gcc462/powerpc-ibm-aix5.2.0.0/lib/ -isystem
/emc/sukhav/cross/aix/gcc462/powerpc-ibm-aix5.2.0.0/include -isystem
/emc/sukhav/cross/aix/gcc462/powerpc-ibm-aix5.2.0.0/sys-include    -g -O2
-pthread -O2  -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall
-Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include  -mlong-double-128 -g
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -fno-stack-protector 
 -I. -I. -I../../.././gcc -I/emc/sukhav/cross/gcc-4.6.2/libgcc
-I/emc/sukhav/cross/gcc-4.6.2/libgcc/.
-I/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc
-I/emc/sukhav/cross/gcc-4.6.2/libgcc/../include  -DHAVE_CC_TLS -DUSE_EMUTLS -o
unwind-dw2.o -MT unwind-dw2.o -MD -MP -MF unwind-dw2.dep -fexceptions -c
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind-dw2.c
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind-dw2.c: In function
Ãuw_init_context_1Ã:
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind-dw2.c:1461:5: warning: missing
braces around initializer [-Wmissing-braces]
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind-dw2.c:1461:5: warning: (near
initialization for Ãonce_regsizes.__on_wordÃ) [-Wmissing-braces]
In file included from
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind-dw2.c:1582:0:
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind.inc: In function
Ã_Unwind_ForcedUnwind_Phase2Ã:
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind.inc:189:1: error:
unrecognizable insn:
(insn 34 33 35 8 (set (mem/v:DI (plus:DI (reg/f:SI 1 1)
                (const_int 20 [0x14])) [0 S8 A8])
        (reg:SI 2 2)) /emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind.inc:163
-1
     (nil))
/emc/sukhav/cross/gcc-4.6.2/libgcc/../gcc/unwind.inc:189:1: internal compiler
error: in extract_insn, at recog.c:2109
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed file attached.