https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80929
--- Comment #5 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- (In reply to Richard Biener from comment #4) > Fixed? Not sure; the middle-end (rtlanal.c::insn_rtx_cost, seq_cost) are still bypassing PARALLELs with more than 1 SET, i.e. assume cost of 1.