Merge pull request !4999 from yeyunpeng2020/primitive

Merge pull request !4870 from hangq/primitive

Merge pull request !4995 from chenjianping/lite_dev2

Merge pull request !4908 from wangshaocong/lite_clean

Merge pull request !4975 from jianghui/master

Merge pull request !4987 from zyli2020/bug_fix

Merge pull request !4980 from wangchangkai/master

Merge pull request !4989 from zhaodezan/master

Merge pull request !4989 from zhaodezan/master

Merge pull request !4971 from chenjianping/lite_dev2

Merge pull request !4790 from jxlang910/push-to-opensource

Merge pull request !4973 from peixu_ren/custom_pp_ops

Merge pull request !4969 from chenzhongming/lite

Merge pull request !4898 from fary86/fix_call_depth_too_large

Merge pull request !4977 from zhaozhenlong/lite/tool/benchmark_modify_help_info

Debug test.

pynative debug

Merge pull request !4927 from flywind/pynative_identity

set quant_type default value

Merge pull request !4979 from zhaodezan/master

Merge pull request !4942 from BowenK/master

Merge pull request !4861 from lixian/master

Merge pull request !4590 from qujianwei/master

Merge pull request !4968 from liuxiao93/fix-some-bug

Merge pull request !4972 from xutianchun/quant_0822

time_profile add fp16 option

Merge pull request !3957 from chenweifeng/strided_slice_dims_exceeds

Merge pull request !4931 from wukesong/add_shell

Merge pull request !4967 from zhaoting/readme

Merge pull request !4964 from anzhengqi/I1QWT0-memory-ascend

Merge pull request !4937 from ms_yan/vgg_format

Merge pull request !4965 from panfengfeng/fix_googlenet_deepfm

Merge pull request !4943 from zhaodezan/master

Merge pull request !4938 from liuchao/lite-master

Merge pull request !4910 from jianghui/master

Merge pull request !4915 from wangchangkai/master

Merge pull request !4946 from ZPaC/master-get-server-rank-in-python