[Bug target/25397] New: Bootstrap failed

["hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>]

With gcc 4.2 revision 108480 on x86-64, I got

./xgcc -B./ -B/usr/gcc-4.2-blended/x86_64-unknown-linux-gnu/bin/ -isystem
/usr/gcc-4.2-blended/x86_64-unknown-linux-gnu/include -isystem
/usr/gcc-4.2-blended/x86_64-unknown-linux-gnu/sys-include
-L/export/build/gnu/gcc-blended/build-x86_64-linux/gcc/../ld -O2  -O2 -g -O2 
-DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT
-DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I.
-I/export/gnu/src/gcc-blended/gcc/gcc -I/export/gnu/src/gcc-blended/gcc/gcc/.
-I/export/gnu/src/gcc-blended/gcc/gcc/../include
-I/export/gnu/src/gcc-blended/gcc/gcc/../libcpp/include 
-I/export/gnu/src/gcc-blended/gcc/gcc/../libdecnumber -fexceptions
-fvisibility=hidden -DHIDE_EXPORTS -c
/export/gnu/src/gcc-blended/gcc/gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o
/export/gnu/src/gcc-blended/gcc/gcc/unwind-dw2.c: In function
?execute_stack_op?:
/export/gnu/src/gcc-blended/gcc/gcc/unwind-dw2.c:740: internal compiler error:
in rtx_equiv_p, at struct-equiv.c:372
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[5]: *** [libgcc/./unwind-dw2.o] Error 1


-- 
           Summary: Bootstrap failed
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25397