> @@ -2618,6 +2643,16 @@ fill_slots_from_thread (rtx_jump_insn *insn, rtx
> condition, lose = 1;
> mark_set_resources (trial, &set, 0, MARK_SRC_DEST_CALL);
> mark_referenced_resources (trial, &needed, true);
> + if (filter_flags)
> + {
> + mark_set_resources (trial, &fset, 0, MARK_SRC_DEST_CALL);
> +
> + /* Groups of flags-register setters with users should not
> + affect opportunities to move flags-register-setting insns
> + (clobbers) into the delay-slot. */
> + CLEAR_HARD_REG_BIT (needed.regs, targetm.flags_regnum);
> + CLEAR_HARD_REG_BIT (fset.regs, targetm.flags_regnum);
> + }
Don't you need to put the new block before mark_referenced_resources (as I did
in fill_simple_delay_slots) in case the needed insn reads the flags register?
--
Eric Botcazou
