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

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

From: @yanglf1121
Reviewed-by: @guoqi1024,@liangchenghui
Signed-off-by: @liangchenghui

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

From: @yanglf1121
Reviewed-by: 
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From: @wangyanling10
Reviewed-by: 
Signed-off-by:

From: @liyong126
Reviewed-by: 
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From: @yanzhenxiang2020
Reviewed-by: 
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From: @zhupuxu
Reviewed-by: 
Signed-off-by:

From: @yanzhenxiang2020
Reviewed-by: 
Signed-off-by:

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

From: @shenwei41
Reviewed-by: 
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From: @yepei6
Reviewed-by: 
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From: @rainyhorse
Reviewed-by: @xsmq,@zhoufeng54
Signed-off-by: @zhoufeng54

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

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

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

From: @lizhenglong1992
Reviewed-by: @liucunwei
Signed-off-by: @liucunwei

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

From: @peilin-wang
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @wangyanling10
Reviewed-by: 
Signed-off-by:

From: @peilin-wang
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

fix ci

fix ci

fix ci

fix ci

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

1. Remove output parameter pool for ascend control flow;
2. Remove duplicate code for Switch and SwitchLayer;
3. Add 'return' attribute to label_goto that used for return;
4. Disable tail call optimize for graphs with 'recursive' flag.

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

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

From: @peilin-wang
Reviewed-by: 
Signed-off-by:

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