https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87485
--- Comment #23 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > Because these testcases uncover real problems in the code base, please see > comment #19. But there are hundreds open PRs in the database for *real* code with *realistic* combinations of options. This one is not one of them. Regarding -fschedule-insns, there was quite some work done some > years ago to enable this option on x86, so by fixing PRs involving > -fchedule-insns, we are inching closer to enabling it by default. IMO it will really be usable only when they double again the # of registers.
