https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68277
--- Comment #4 from Kazumoto Kojima <kkojima at gcc dot gnu.org> --- (In reply to Oleg Endo from comment #3) > I haven't read reload.*, but my speculation is that if something in reload > instantiates that rtx with an imm8 constant to calculate addresses, it might > also try to instantiate it with reg = reg + reg if the constant doesn't fit > into imm8. Maybe we just don't hit the case (yet). So it's probably safer > to allow reg = reg + reg, too. Sounds reasonable. > I guess those "new" failures are R0 related? Yep, spill failure in R0. Our old friend.
