https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63534
--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- r216154 broke bootstrap on x86_64-apple-darwin13 too while building libstdc++-v3: libtool: compile: /opt/gcc/p_build/./gcc/xgcc -shared-libgcc -B/opt/gcc/p_build/./gcc -nostdinc++ -L/opt/gcc/p_build/x86_64-apple-darwin13.4.0/i386/libstdc++-v3/src -L/opt/gcc/p_build/x86_64-apple-darwin13.4.0/i386/libstdc++-v3/src/.libs -L/opt/gcc/p_build/x86_64-apple-darwin13.4.0/i386/libstdc++-v3/libsupc++/.libs -B/opt/gcc/gcc4.10p-216154/x86_64-apple-darwin13.4.0/bin/ -B/opt/gcc/gcc4.10p-216154/x86_64-apple-darwin13.4.0/lib/ -isystem /opt/gcc/gcc4.10p-216154/x86_64-apple-darwin13.4.0/include -isystem /opt/gcc/gcc4.10p-216154/x86_64-apple-darwin13.4.0/sys-include -m32 -I/opt/gcc/p_work/libstdc++-v3/../libgcc -I/opt/gcc/p_build/x86_64-apple-darwin13.4.0/i386/libstdc++-v3/include/x86_64-apple-darwin13.4.0 -I/opt/gcc/p_build/x86_64-apple-darwin13.4.0/i386/libstdc++-v3/include -I/opt/gcc/p_work/libstdc++-v3/libsupc++ -D_GLIBCXX_SHARED -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi -fdiagnostics-show-location=once -fvisibility-inlines-hidden -ffunction-sections -fdata-sections -frandom-seed=atexit_thread.lo -g -O2 -m32 -std=gnu++11 -c ../../../../../p_work/libstdc++-v3/libsupc++/atexit_thread.cc -fno-common -DPIC -D_GLIBCXX_SHARED -o atexit_thread.o ../../../../../p_work/libstdc++-v3/libsupc++/atexit_thread.cc: In function 'void {anonymous}::key_init()': ../../../../../p_work/libstdc++-v3/libsupc++/atexit_thread.cc:111:3: internal compiler error: in cselib_invalidate_regno, at cselib.c:2146 } ^ ../../../../../p_work/libstdc++-v3/libsupc++/atexit_thread.cc:111:3: internal compiler error: Abort trap: 6 xgcc: internal compiler error: Abort trap: 6 (program cc1plus)