https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63622
--- Comment #19 from howarth at bromo dot med.uc.edu --- Apparently we need something along the lines of the previously proposed IPA ICF aliasing restriction patch, however when applied to current gcc trunk the bootstrap fails at... libtool: compile: /sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/./gcc/xgcc -shared-libgcc -B/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/./gcc -nostdinc++ -L/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.0.0/i386/libstdc++-v3/src -L/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.0.0/i386/libstdc++-v3/src/.libs -L/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.0.0/i386/libstdc++-v3/libsupc++/.libs -B/sw/lib/gcc5.0/x86_64-apple-darwin14.0.0/bin/ -B/sw/lib/gcc5.0/x86_64-apple-darwin14.0.0/lib/ -isystem /sw/lib/gcc5.0/x86_64-apple-darwin14.0.0/include -isystem /sw/lib/gcc5.0/x86_64-apple-darwin14.0.0/sys-include -m32 -I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5.0-20141105/libstdc++-v3/../libgcc -I/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.0.0/i386/libstdc++-v3/include/x86_64-apple-darwin14.0.0 -I/sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/x86_64-apple-darwin14.0.0/i386/libstdc++-v3/include -I/sw/src/fink.build/gcc50-5.0.0-1000/gcc-5.0-20141105/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 ../../../../../gcc-5.0-20141105/libstdc++-v3/libsupc++/atexit_thread.cc -fno-common -DPIC -D_GLIBCXX_SHARED -o atexit_thread.o ../../../../../gcc-5.0-20141105/libstdc++-v3/libsupc++/atexit_thread.cc: In function ‘void {anonymous}::key_init()’: ../../../../../gcc-5.0-20141105/libstdc++-v3/libsupc++/atexit_thread.cc:111:3: internal compiler error: in cselib_invalidate_regno, at cselib.c:2154 } ^ libbacktrace could not find executable to open Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.