https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212
--- Comment #29 from Kazumoto Kojima <kkojima at gcc dot gnu.org> --- Created attachment 33528 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33528&action=edit A trial patch The patch is to refrain from changing to class R0_REGS for r943. With the above 2 patches, the remained test case failing with the ICE in assign_by_spill is gcc.dg/pr38338.c which uses extra-ordinary __builtin_apply_args and __builtin_apply builtins. I can't get what is going on that case yet.
