Re: Build on mainline broken

[Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>]

Hello,

> I'm keeping an eye on building GCC for vax-linux /vax-linux-uclibc (only
> some config changes needed for that; I'll submit those once the first libc
> support is committed). Note that this is a cc0 port.
> 
> An automated build at 20060120-141501 UTC still showed the ICE in
> udivmodsi4.c .  This was probably fixed by r110030:
> 
> 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
> 
> 	* loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
> 
> 
> Since the next automated build at 20060120-171500 UTC, I'm getting a
> different ICE:
> 
> /tmp/build-temp-vax-linux-uclibc/build/gcc1/./gcc/xgcc -B/tmp/build-temp-vax-linux-uclibc/build/gcc1/./gcc/ -B/tmp/build-temp-vax-linux-uclibc/install/usr/vax-linux-uclibc/bin/ -B/tmp/build-temp-vax-linux-uclibc/install/usr/vax-linux-uclibc/lib/ -isystem /tmp/build-temp-vax-linux-uclibc/install/usr/vax-linux-uclibc/include -isystem /tmp/build-temp-vax-linux-uclibc/install/usr/vax-linux-uclibc/sys-include -O2  -O2 -g -O2   -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include   -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/tmp/build-temp-vax-linux-uclibc/src/gcc/gcc -I/tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/. -I/tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/../include -I/tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/../libcpp/include  -I/tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/../libdecnumber -I../libdecnumber  -fexceptions -c /tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/unwind-dw2-fde.c -o libgcc/./unwind-dw2-fde.o
> /tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/unwind-dw2-fde.c:1: warning: -g is only supported when using GAS on this processor,
> /tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/unwind-dw2-fde.c:1: warning: -g option disabled
> /tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/unwind-dw2-fde.c: In function 'fde_single_encoding_compare':
> /tmp/build-temp-vax-linux-uclibc/src/gcc/gcc/unwind-dw2-fde.c:350: internal compiler error: in expand_compound_operation, at combine.c:5644
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> make[2]: *** [libgcc/./unwind-dw2-fde.o] Error 1
> make[2]: Leaving directory `/tmp/build-temp-vax-linux-uclibc/build/gcc1/gcc'
> make[1]: *** [libgcc.a] Error 2
> make[1]: Leaving directory `/tmp/build-temp-vax-linux-uclibc/build/gcc1/gcc'
> make: *** [all-gcc] Error 2
> 
> This is the SIGN_EXTRACT case of expand_compound_operation(), maybe this does ring a
> bell?

no idea; this is either completely unrelated, or we randomly clobber memory somewhere.
Could you please provide a preprocessed testcase (preferably reduced
one)?

Zdenek