Merge pull request !2714 from jinyaohui/print

Merge pull request !2704 from chenzhongming/r0.5

Merge pull request !2656 from guozhijian/sync_fix_tfrecord_to_mr_para_check

Merge pull request !2469 from caojian05/ms_master_dev

Merge pull request !2575 from ms_yan/r0.5_GetTensor

Merge pull request !2496 from 李鸿章/callback

Merge pull request !2555 from chenzhongming/r0.5

Merge pull request !2413 from Xiaoda/7-auto-parallel-check-optimizer-ops

Merge pull request !2398 from h.farahat/slice_bug

Merge pull request !2404 from xulei/input_output

Merge pull request !2375 from h.farahat/python_tokenizer

- It provides a unified style to express graph and kernel for user.
- It provides a unified IR to represent graph and kernel for developer.
- It breaks the boundary between graph and kernel.
- It provides more opportunities to do compile optimization.

Merge pull request !2380 from xiefangqi/xfq_fix_coco_issue_01

Merge pull request !2384 from YuJianfeng/split

Merge pull request !2378 from flywind/fix_yolov3_bug

Merge pull request !2056 from zhoufeng/enable-new-control-sink

Merge pull request !2157 from hangq/master

Merge pull request !2143 from ms_yan/del_storage_c++

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

init remove storage op test case c++

remove source c++ files

Merge pull request !2347 from riemann_penn/support_multi_param_for_tuple_grad

Merge pull request !2363 from yanghaitao/yht_fix_textfiledataset

Merge pull request !2259 from pkuliuliu/master

Merge pull request !2372 from h.farahat/cleanup_0619

Merge pull request !2337 from chenzhongming/master

Merge pull request !2147 from ougongchang/master

!38 Synchronize with latest Ascend software suite 17 Jun 2020
Merge pull request !38 from yanghaoran/master