https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78976
--- Comment #3 from Janne Blomqvist <jb at gcc dot gnu.org> --- Ugh, yeah. I had to revert the big patch, https://gcc.gnu.org/ml/gcc-patches/2017-01/msg00110.html, which also reverted the testcase fixes. I'll commit them separately.