From: @irmo
Reviewed-by: @kisnwang,@zhoufeng54
Signed-off-by: @zhoufeng54

From: @yuchaojie
Reviewed-by: @kingxian,@zhoufeng54
Signed-off-by: @kingxian

From: @jjfeing
Reviewed-by: @zhoufeng54,@kisnwang
Signed-off-by: @kisnwang

From: @yanghaitao1
Reviewed-by: @wangyue01,@lilongfei15
Signed-off-by: @lilongfei15

From: @jojobugfree
Reviewed-by: @kisnwang,@zhoufeng54,@chujinjin
Signed-off-by: @chujinjin

sparse loss

format

add string head

context

From: @looop5
Reviewed-by: @lingyunli63,@ckey_dou,@gaoxiong1
Signed-off-by: @ckey_dou

From: @liangzelang
Reviewed-by: @zhoufeng54,@kisnwang
Signed-off-by: @kisnwang

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

From: @jiangzg001
Reviewed-by: @kingxian,@c_34,@kingxian
Signed-off-by: @c_34

format

format

format

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

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

From: @joylvliang
Reviewed-by: @chujinjin,@jjfeing
Signed-off-by: @chujinjin

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

pynative bp graph

Refactor the BasicOpsFusion and CompositeOpsFusion to one pass.
Add a pass to eliminate the redundant output.

TODO: rename the file basic_ops_fusion and delete the file composite_ops_fusion