From: @li-lei0106
Reviewed-by: @wqtshg,@xchu42
Signed-off-by: @wqtshg

From: @dimitri_rose
Reviewed-by: @xchu42,@ji_chen
Signed-off-by: @ji_chen

From: @yangyongqiang5033
Reviewed-by: @xchu42,@ji_chen
Signed-off-by: @ji_chen

From: @li-lei0106
Reviewed-by: @xchu42,@wqtshg
Signed-off-by: @ji_chen

From: @wangxiaotian22
Reviewed-by: @xchu42,@wqtshg,@ji_chen
Signed-off-by: @ji_chen

From: @jiming6
Reviewed-by: @xchu42,@wqtshg
Signed-off-by:

From: @tangqunzhang
Reviewed-by: @xchu42,@ji_chen
Signed-off-by: @ji_chen

From: @li-lei0106
Reviewed-by: @wqtshg,@xchu42
Signed-off-by: @wqtshg

From: @hugo1
Reviewed-by: @xchu42,@wqtshg
Signed-off-by:

new file:   tests/ut/ge/graph/passes/replace_with_empty_const_pass_unittest.cc

From: @HW_KK
Reviewed-by: @xchu42,@ji_chen
Signed-off-by:

From: @xchu42
Reviewed-by: @ji_chen,@wqtshg
Signed-off-by: @ji_chen

From: @wangxiaotian22
Reviewed-by: @xchu42,@wqtshg
Signed-off-by: @ji_chen

From: @xchu42
Reviewed-by: @wqtshg,@ji_chen
Signed-off-by: @ji_chen

From: @jiming6
Reviewed-by: @xchu42,@wqtshg,@wqtshg
Signed-off-by: @wqtshg

From: @li-lei0106
Reviewed-by: @ji_chen,@xchu42
Signed-off-by: @ji_chen

From: @isaacxr
Reviewed-by: @xchu42,@ji_chen
Signed-off-by: @ji_chen

From: @zhao_zhixuan
Reviewed-by: @xchu42,@ji_chen
Signed-off-by: @ji_chen

Merge pull request !1173 from 李磊/string

From: @zhou_chao1993
Reviewed-by: @youui
Signed-off-by:

From: @yangyongqiang5033
Reviewed-by: @tangqunzhang,@ji_chen,@xchu42
Signed-off-by: @ji_chen

From: @zhengyuanhua
Reviewed-by: @liujunzhu,@youui
Signed-off-by: @youui

From: @wan_xuelei
Reviewed-by: @xchu42,@wqtshg
Signed-off-by: @wqtshg

From: @zhangxiaokun9
Reviewed-by: @wqtshg,@xchu42
Signed-off-by: @ji_chen