From: @wilfchen
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @cristoval

From: @jonwe
Reviewed-by: @robingrosman,@tom__chen
Signed-off-by: @tom__chen

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

From: @danishnxt
Reviewed-by: @tom__chen,@robingrosman
Signed-off-by: @robingrosman

From: @wilfchen
Reviewed-by: @limingqi107,@cristoval
Signed-off-by: @cristoval

From: @peilin-wang
Reviewed-by: @robingrosman,@tom__chen
Signed-off-by: @tom__chen,@tom__chen

From: @TFbunny
Reviewed-by: @robingrosman,@tom__chen
Signed-off-by: @tom__chen

From: @wuxuejian
Reviewed-by: @liangchenghui,@c_34
Signed-off-by: @liangchenghui

fix ci

fix ci

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

From: @jonwe
Reviewed-by: @robingrosman,@robingrosman,@tom__chen
Signed-off-by: @tom__chen

From: @huaweib
Reviewed-by: @kisnwang,@jjfeing
Signed-off-by: @jjfeing

From: @jjfeing
Reviewed-by: @kisnwang,@limingqi107
Signed-off-by: @limingqi107

From: @xiefangqi
Reviewed-by: @pandoublefeng,@jonyguo
Signed-off-by: @jonyguo

From: @yuan_shen_zhou
Reviewed-by: @liangchenghui
Signed-off-by: @liangchenghui

From: @yuan_shen_zhou
Reviewed-by: @liangchenghui
Signed-off-by:

From: @wilfchen
Reviewed-by: @limingqi107,@cristoval
Signed-off-by: @cristoval

From: @wilfchen
Reviewed-by: @cristoval,@limingqi107,@cristoval
Signed-off-by: @cristoval

Merge pull request !8106 from kisnwang/add-cpu-adam-delta

Merge pull request !8252 from VectorSL/maxpool-grad

Merge pull request !8189 from peixu_ren/master

Merge pull request !8146 from 34bunny/GPU-ScatterUpdateFix