3.0 20010611 (prerelease) segfaults with bootstrap

[Frédéric L. W. Meunier <0 at pervalidus dot net>]

Here are the segfaults. I'm not able to reproduce them, but I
think there's a problem. I was able to bootstrap in the last 2
days... I'm using the same tools.

--prefix=/usr --enable-threads=posix --enable-languages=c++
--disable-nls --with-system-zlib

BOOT_CFLAGS=-O2 CFLAGS=-O LIBCFLAGS=-O2 CXXFLAGS=-O
LIBCXXFLAGS='-O2 -fno-implicit-templates' LDFLAGS=-s bootstrap

stage1/xgcc -Bstage1/ -B/usr/i686-pc-linux-gnu/bin/  -DIN_GCC    -O2 -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H
-I. -I. -I/usr/local/src/CVS/gcc-3.0/gcc -I/usr/local/src/CVS/gcc-3.0/gcc/.
-I/usr/local/src/CVS/gcc-3.0/gcc/config -I/usr/local/src/CVS/gcc-3.0/gcc/../include -c
insn-recog.c
insn-recog.c: In function `recog_2':
insn-recog.c:1882: Internal compiler error in expand_stmt, at c-semantics.c:881
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [insn-recog.o] Error 1
make[2]: Leaving directory `/home/pervalidus/objdir/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/home/pervalidus/objdir/gcc'
make: *** [bootstrap] Error 2

stage2/xgcc -Bstage2/ -B/usr/i686-pc-linux-gnu/bin/ -c  -DIN_GCC    -O2 -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H
-I. -I. -I/usr/local/src/CVS/gcc-3.0/gcc -I/usr/local/src/CVS/gcc-3.0/gcc/.
-I/usr/local/src/CVS/gcc-3.0/gcc/config -I/usr/local/src/CVS/gcc-3.0/gcc/../include
/usr/local/src/CVS/gcc-3.0/gcc/varasm.c -o varasm.o
/usr/local/src/CVS/gcc-3.0/gcc/varasm.c:166: Internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [varasm.o] Error 1
make[2]: Leaving directory `/home/pervalidus/objdir/gcc'
make[1]: *** [stage3_build] Error 2
make[1]: Leaving directory `/home/pervalidus/objdir/gcc'
make: *** [bootstrap] Error 2

stage2/xgcc -Bstage2/ -B/usr/i686-pc-linux-gnu/bin/  -DIN_GCC    -O2 -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H
-I. -I. -I/usr/local/src/CVS/gcc-3.0/gcc -I/usr/local/src/CVS/gcc-3.0/gcc/.
-I/usr/local/src/CVS/gcc-3.0/gcc/config -I/usr/local/src/CVS/gcc-3.0/gcc/../include -c
insn-attrtab.c
insn-attrtab.c: In function `pent_np_unit_blockage':
insn-attrtab.c:25365: Internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[2]: *** [insn-attrtab.o] Error 1
make[2]: Leaving directory `/home/pervalidus/objdir/gcc'
make[1]: *** [stage3_build] Error 2
make[1]: Leaving directory `/home/pervalidus/objdir/gcc'
make: *** [bootstrap] Error 2

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