Lines Matching refs:set_b
3453 rtx set_a, set_b;
3514 set_b = NULL_RTX;
3518 set_b = single_set (insn_b);
3519 gcc_assert (set_b);
3521 if (!rtx_interchangeable_p (x, SET_DEST (set_b)))
3540 || (set_b = single_set (insn_b)) == NULL_RTX
3541 || ! rtx_interchangeable_p (x, SET_DEST (set_b))
3542 || ! noce_operand_ok (SET_SRC (set_b))
3543 || reg_overlap_mentioned_p (x, SET_SRC (set_b))
3544 || modified_between_p (SET_SRC (set_b), insn_b, jump)
3547 || (REG_P (SET_SRC (set_b))
3548 && HARD_REGISTER_P (SET_SRC (set_b))
3550 (GET_MODE (SET_SRC (set_b))))
3559 set_b = NULL_RTX;
3571 b = (set_b ? SET_SRC (set_b) : x);
3642 if (!set_b && MEM_P (orig_x))
3683 if (!else_bb && set_b)
3686 set_b = NULL_RTX;