https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65732
--- Comment #3 from Kyle Manna <2bluesc at gmail dot com> --- I bisected this using the script @ https://gist.github.com/7d4007a2c18c62a1d84d It discovers the bad commit to be 492e19d098f4bf4f22bac22815e9cb117be55b33 This seems related to https://sourceware.org/bugzilla/show_bug.cgi?id=17066