https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84545
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Do the: if (CALL_P (insn)) { rtx note = find_reg_note (insn, REG_CALL_ARG_LOCATION, NULL_RTX); if (note) remove_note (insn, note); } also for insns inside a SEQUENCE?