https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114810
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #8) > So, given the known ia32 register starvation, can't we split that first > alternative to > =&r,r,o with "nox64" isa and =&r,r,ro with "x64" isa? Better make it a (define_mode_attr andn_ro [(DI "o") (TI "ro")]) and use <andn_ro> instead of the first ro (or some better name).