https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113396
--- Comment #6 from David Binderman <dcb314 at hotmail dot com> --- Reduced bisect range seems to be g:2c11662391bafd74c9d19bf7626b7bcef41c1323 .. g:9e0d5db3e04afd2d030ace4ccb5c1af5e9f05a8f, which is 462 commits.