[Bug bootstrap/58521] [4.9 Regression] bootstrap failure

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58521

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I have a different boostrap failure on x86_64-apple-darwin10:

/opt/gcc/build_w/./prev-gcc/xg++ -B/opt/gcc/build_w/./prev-gcc/
-B/opt/gcc/gcc4.9w/x86_64-apple-darwin10.8.0/bin/ -nostdinc++
-B/opt/gcc/build_w/prev-x86_64-apple-darwin10.8.0/libstdc++-v3/src/.libs
-B/opt/gcc/build_w/prev-x86_64-apple-darwin10.8.0/libstdc++-v3/libsupc++/.libs
-I/opt/gcc/build_w/prev-x86_64-apple-darwin10.8.0/libstdc++-v3/include/x86_64-apple-darwin10.8.0
-I/opt/gcc/build_w/prev-x86_64-apple-darwin10.8.0/libstdc++-v3/include
-I/opt/gcc/work/libstdc++-v3/libsupc++
-L/opt/gcc/build_w/prev-x86_64-apple-darwin10.8.0/libstdc++-v3/src/.libs
-L/opt/gcc/build_w/prev-x86_64-apple-darwin10.8.0/libstdc++-v3/libsupc++/.libs
-c   -g -O2 -mdynamic-no-pic -gtoggle -DIN_GCC   -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common 
-DHAVE_CONFIG_H -I. -I. -I../../work/gcc -I../../work/gcc/.
-I../../work/gcc/../include -I./../intl -I../../work/gcc/../libcpp/include
-I/opt/mp/include  -I../../work/gcc/../libdecnumber
-I../../work/gcc/../libdecnumber/dpd -I../libdecnumber
-I../../work/gcc/../libbacktrace -DCLOOG_INT_GMP  -I/opt/mp/include 
../../work/gcc/tree-ssa.c -o tree-ssa.o
../../work/gcc/tree-ssa-uninit.c: In function 'bool
is_use_properly_guarded(gimple, basic_block, gimple, unsigned int,
pointer_set_t*)':
../../work/gcc/tree-ssa-uninit.c:1907:1: internal compiler error: in
mem_ref_in_stmt, at tree-ssa-loop-im.c:677
 is_use_properly_guarded (gimple use_stmt,
 ^

../../work/gcc/tree-ssa-uninit.c:1907:1: internal compiler error: Abort trap
xg++: internal compiler error: Abort trap (program cc1plus)
make[3]: *** [tree-ssa-uninit.o] Abort trap
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod jcf-dump.pod grmic.pod gcov.pod gcj.pod cpp.pod gfortran.pod
gfdl.pod gij.pod gc-analyze.pod jv-convert.pod gcc.pod gcj-dbtool.pod
make[2]: *** [all-stage2-gcc] Error 2
make[1]: *** [stage2-bubble] Error 2
make: *** [all] Error 2