https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94042
--- Comment #33 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- (In reply to Segher Boessenkool from comment #32) > So it sounds like this helps for targets with tiny register sets? I guess it helps for any target but of course more for ones with smaller register sets. I'd call 16 reg file (x86-64, 32-bit arm) is small. Tiny one for me would be for i386.