https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96536
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Hongtao.liu from comment #1) > I'm testing patch like You can probably use gen_sub2_insn here. On a related note, "@" prefix can be used for rdssp, so one can pass mode to an expander. This would eliminate e.g. "(word_mode == SImode) ? gen_rdsspsi (reg_ssp) : gen_rdsspdi (reg_ssp)" constructs with just one call to the expander.