https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97715
--- Comment #16 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Jakub Jelinek from comment #15) > They aren't live. But that loop checks that only if only_used is true, when > one uses =all, it marks all regs that aren't fixed, aren't live at the end > of the function and a few other checks. Ah, yes. The logic is inverted.