“1acad21bbf7a7eea1dc5cb9a68057d35210f7cdb”上不存在“paddle/fluid/operators/tree_conv_op.cu”
* add sparse support for sum op * typo fix * fix gpu build error * fix unittest error * typo fix * infer var type and shape in op_test * follow comments * fix build error * bypass some unittests depend on NetOp