https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77333
--- Comment #14 from Tony Kelman <tony at kelman dot net> --- I'll look into whether the same flag changes the behavior in the same way on gcc 5. Using the opensuse repo's current cross compiler version, I reduced SLPVectorizer.cpp down to the attached version. It's maybe so small that there's UB making it useless to look at, but replacing SLPVectorizer.cpp with this copy reproduces the known-good behavior with -fno-ipa-cp and the segfault without.
