https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80283
--- Comment #23 from Wilco <wilco at gcc dot gnu.org> --- (In reply to rsand...@gcc.gnu.org from comment #22) > > SCHED_PRESSURE_MODEL first tries to create a "model" schedule > > that keeps register down as far as possible and then uses that > > to guide the "real" schedule. It looks like the model schedule > > goes catastrophically wrong in this case though: the original > > order had a VFP_REGS pressure of 56 (against a capacity of 64) > > while the model schedule had a pressure of 76(!). Since when does ARM have 64 128-bit VFP registers? If it can't even count registers correctly that's the #1 problem right there...
