From: @zhupuxu
Reviewed-by: @kingxian,@liangchenghui
Signed-off-by: @kingxian

From: @pengyongrong
Reviewed-by: @zhanghaibo5,@ddwsky
Signed-off-by: @ddwsky

From: @yepei6
Reviewed-by: 
Signed-off-by:

From: @yepei6
Reviewed-by: @kisnwang
Signed-off-by:

From: @yepei6
Reviewed-by: @kisnwang,@kingxian
Signed-off-by: @kingxian

From: @luopengting
Reviewed-by: 
Signed-off-by:

From: @xiefangqi
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @zhujingxuan
Reviewed-by: @wangchengyuan,@wangchengyuan
Signed-off-by: @wangchengyuan,@wangchengyuan

1. add validation for directory and filename
2. refactor the file operations about path
3. add in CMakeLists
4. add logger in nn_ops

From: @zhupuxu
Reviewed-by: @zhunaipan,@kingxian
Signed-off-by: @kingxian

From: @nicholas_yhr
Reviewed-by: @gemini524,@zhoufeng54,@chujinjin
Signed-off-by: @zhoufeng54

From: @liuyang_655
Reviewed-by: 
Signed-off-by:

From: @hwhewei
Reviewed-by: @zhunaipan,@zh_qh
Signed-off-by: @zh_qh

From: @luoyang42
Reviewed-by: @liucunwei
Signed-off-by: @liucunwei

From: @caojian05
Reviewed-by: @kisnwang,@wuxuejian
Signed-off-by: @wuxuejian

Signed-off-by: zhupuxu <zhupuxu@huawei.com>

From: @liu_xiao_93
Reviewed-by: 
Signed-off-by:

The basic idea is: exploits data dependency to control the execution order
of side-effect operations, and keep the semantics of ANF unchanged.

The ControlDepend primitive is removed and there are two primitives added:

1. UpdateState:
```
  a = Assign(para, value)
```
became:
```
  a = Assign(para, value, u)
  u = UpdateState(u, a)
```

2. Load:
```
  x = Add(para, value)
```
became:
```
  p = Load(para, u)
  x = Add(p, value)
  u = UpdateState(u, p)
```

From: @qujianwei
Reviewed-by: 
Signed-off-by:

Signed-off-by: zhupuxu <zhupuxu@huawei.com>

From: @zhang_yi2020
Reviewed-by: @gemini524,@liangchenghui,@ljl0711
Signed-off-by: @liangchenghui

From: @xixixian
Reviewed-by: @anyrenwei,@gaoxiong1
Signed-off-by: @gaoxiong1

From: @wangshuide2020
Reviewed-by: 
Signed-off-by:

From: @wangnan39
Reviewed-by: @kingxian
Signed-off-by:

From: @louie5
Reviewed-by: 
Signed-off-by:

From: @gengdongjie
Reviewed-by: @liangchenghui,@oacjiewen
Signed-off-by: @oacjiewen

From: @yufan1012
Reviewed-by: 
Signed-off-by:

From: @louisncu
Reviewed-by: @zhang_xue_tong
Signed-off-by:

From: @xulei2020
Reviewed-by: @pandoublefeng,@heleiwang
Signed-off-by: @pandoublefeng