[tree-ssa] bootstrap failure /ice on cygwin

[Joost VandeVondele <jv244 at hermes dot cam dot ac dot uk>]

Hi,

The latest version fails to bootstrap on cygwin, we an ICE in
insn-attrtab.c.

I used :

../gcc/configure --prefix=/home/vondele/gcc-g95/tmp
--enable-languages=c,f95 --with-gmp-dir=/home/vondele/download/gmp-4.1.2
make bootstrap

the last piece of the log is :

/bin/sh ../../gcc/gcc/move-if-change tmp-attrtab.c insn-attrtab.c
echo timestamp > s-attrtab
stage1/xgcc.exe -Bstage1/ -B/home/vondele/gcc-g95/tmp/i686-pc-cygwin/bin/
-g -O2  -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -pedantic -Wno-long-long -Werror -fno-common
-DHAVE_CONFIG_H    -I. -I. -I../../gcc/gcc -I../../gcc/gcc/.
-I../../gcc/gcc/config -I../../gcc/gcc/../include
-I../../gcc/gcc/../libbanshee/libcompat -I../../gcc/gcc/../libbanshee
-I../../gcc/gcc/../libbanshee/points-to -I/home/vondele/download/gmp-4.1.2
-c insn-attrtab.c \
  -o insn-attrtab.o
insn-attrtab.c: In function `insn_default_latency':
insn-attrtab.c:4189: internal compiler error: Segmentation fault
make[2]: *** [insn-attrtab.o] Error 1
make[2]: Leaving directory `/home/vondele/gcc-g95/objdir/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/home/vondele/gcc-g95/objdir/gcc'
make: *** [bootstrap-lean] Error 2
>

The installed version of gcc (gcc version 3.2 20020927 (prerelease)) is
able to compile the file

> cd gcc
> gcc -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -pedantic -Wno-long-long -Werror -fno-common
-DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/.
-I../../gcc/gcc/config -I../../gcc/gcc/../include
-I../../gcc/gcc/../libbanshee/libcompat -I../../gcc/gcc/../libbanshee
-I../../gcc/gcc/../libbanshee/points-to -I/home/vondele/download/gmp-4.1.2
-c insn-attrtab.c
> cd ..

Cheers,

Joost