https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63534
--- Comment #12 from Stupachenko Evgeny <evstupac at gmail dot com> --- (In reply to Dominique d'Humieres from comment #9) > 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) We are trying to reproduce the issue. Can you please send me/attach rtl dumps on the fail?