https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81485
--- Comment #4 from Oleg Endo <olegendo at gcc dot gnu.org> --- (In reply to Martin Liška from comment #3) > > Good, I can confirm it works for GCC 5. Let's then bisect that.. I'm not sure whether this will reveal anything useful. It's probably just a bug in the function sh_find_set_of_reg, which runs into an unexpected RTL construct.