[Bug bootstrap/44768] New: arm-linux bootstrap broken on expmed.c:157:3: warning ICE

[laurent at guerby dot net]

OK at rev 160819
KO at rev 160869

/home/guerby/build/./prev-gcc/xgcc -B/home/guerby/build/./prev-gcc/
-B/n/57/guerby/install-trunk-160869/armv5tel-unknown-linux-gnueabi/bin/
-B/n/57/guerby/install-trunk-160869/armv5tel-unknown-linux-gnueabi/bin/
-B/n/57/guerby/install-t\
runk-160869/armv5tel-unknown-linux-gnueabi/lib/ -isystem
/n/57/guerby/install-trunk-160869/armv5tel-unknown-linux-gnueabi/include
-isystem
/n/57/guerby/install-trunk-160869/armv5tel-unknown-linux-gnueabi/sys-include   
-c   -g -O2 -DIN_\
GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition
-Wc++-compat -fno-common\
 -Wno-error -DHAVE_CONFIG_H -I. -I. -I../../trunk/gcc -I../../trunk/gcc/.
-I../../trunk/gcc/../include -I../../trunk/gcc/../libcpp/include 
-I../../trunk/gcc/../libdecnumber -I../../trunk/gcc/../libdecnumber/dpd
-I../libdecnumber     ..\
/../trunk/gcc/expmed.c -o expmed.o
../../trunk/gcc/expmed.c: In function 'init_expmed':
../../trunk/gcc/expmed.c:157:3: warning: array subscript is above array bounds
[-Warray-bounds]
xgcc: internal compiler error: Segmentation fault (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [expmed.o] Error 4
make[3]: Leaving directory `/home/guerby/build/gcc'
make[2]: *** [all-stage3-gcc] Error 2
make[2]: Leaving directory `/home/guerby/build'
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory `/home/guerby/build'
make: *** [bootstrap] Error 2

Might be caused by:

2010-06-16  DJ Delorie  <dj@redhat.com>

        * common.opt (-fstrict-volatile-bitfields): new.
        * doc/invoke.texi: Document it.
        * fold-const.c (optimize_bit_field_compare): For volatile
        bitfields, use the field's type to determine the mode, not the
        field's size.
        * expr.c (expand_assignment): Likewise.
        (get_inner_reference): Likewise.
        (expand_expr_real_1): Likewise.
        * expmed.c (store_fixed_bit_field): Likewise.
        (extract_bit_field_1): Likewise.
        (extract_fixed_bit_field): Likewise.


-- 
           Summary: arm-linux bootstrap broken on expmed.c:157:3: warning
                    ICE
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: laurent at guerby dot net
 GCC build triplet: arm-linux-gnueabi
  GCC host triplet: arm-linux-gnueabi
GCC target triplet: arm-linux-gnueabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44768