“4b20a7029c24a9645dea56682d527b8137150cd2”上不存在“...s2t/decoders/ctcdecoder/swig/ctc_beam_search_decoder.cpp”
* 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