[lno] bootstrap failure

[Zdenek Dvorak]

Hello,

> since roughly a week ago I cannot bootstrap the lno-branch on i86-pc-linux-gnu,
> since I'm getting the following ICE:
> 
>     make[2]: Entering directory `/Work/reichelt/gccbuild/src-lno/build/gcc'
>     stage1/xgcc -Bstage1/ -B/home/reichelt/GCC/FARM/gcc-lno-20040330/i686-pc-linux-gnu/bin/   -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wold-style-definition -Wno-variadic-macros -Werror -fno-common   -DHAVE_CONFIG_H    -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libbanshee/libcompat -I../../gcc/gcc/../libbanshee -I../../gcc/gcc/../libbanshee/points-to  -c insn-extract.c \
>       -o insn-extract.o
>     insn-extract.c: In function `insn_extract':
>     insn-extract.c:16: internal compiler error: in ggc_recalculate_in_use_p, at ggc-page.c:1590
>     Please submit a full bug report,
>     with preprocessed source if appropriate.
>     See <URL:http://gcc.gnu.org/bugs.html> for instructions.
>     make[2]: *** [insn-extract.o] Error 1
>     make[2]: Leaving directory `/Work/reichelt/gccbuild/src-lno/build/gcc'
>     make[1]: *** [stage2_build] Error 2
>     make[1]: Leaving directory `/Work/reichelt/gccbuild/src-lno/build/gcc'
>     make: *** [bootstrap-lean] Error 2
> 
> I ran configure with
> 
>     ../gcc/configure --enable-threads --enable-checking --prefix=/home/reichelt/GCC/FARM/gcc-lno-20040330
> 
> Alas I cannot provide preprocessed sources, because the bugs goes away if
> I add -save-temps (but then I'm getting comparison failures later).
> 
> Is anybody else seeing this?

I bootstrap regularly on i686; however what you describe seems like that
we use some unitialized variable somewhere, which makes the problem hard
to reproduce.  You could try using valgrind to verify this.

Zdenek