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
