https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80491
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |segher at gcc dot gnu.org --- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Segher, any idea what can be done about the second (combiner) issue? Is it possible to special case MODE_CC class hard registers that are just clobbered on the i2 insn using a separate clobber in a parallel (so the single_set in that case which is what we try to substitute doesn't clobber it) and not in insns in between i1 and i2 and i2 and i3?