Merge pull request !445 from gengdongjie/master

Merge pull request !337 from kisnwang/optimize-execute-order-sort

Merge pull request !449 from Simson/push-to-opensource

Merge pull request !450 from xiefangqi/fix_segment_on_windows

Merge pull request !428 from changzherui/cus_net_ckpt

Merge pull request !432 from ZhouFeng/windows-sqlite-patch

Merge pull request !443 from kisnwang/add-cpu-onehot-new

Merge pull request !438 from huanghui/fix-confusion-softmax-grad-rule-pass

Merge pull request !384 from liyong126/mindrecord_validation

Merge pull request !446 from gziyan/fix_lars_base_class

Merge pull request !447 from chenjianping/fix-windows-bug

Merge pull request !399 from JichenZhao/syncbn

Merge pull request !427 from pengyanjun/fix_dataset_api_description

Merge pull request !431 from wangqiuliang/fix-cell-ouput-issue-in-pynative

Merge pull request !263 from dengwentao/tvm

Merge pull request !441 from YuJianfeng/master

Merge pull request !442 from zhangbuxue/perfect_comparion_op

Merge pull request !387 from liubuyu/master

Merge pull request !439 from liubuyu/dev_lby

Merge pull request !440 from lianliguang/fix-bug-of-deal-ref-pass

Merge pull request !424 from zhangbuxue/dock_depthwiseconv2d_ops

Merge pull request !433 from chenjianping/eliminate-securec-warning

Merge pull request !420 from amongo/FixMixedPrecisionForConstParam