Merge pull request !4706 from Peilin/smoothL1Loss-fix

Merge pull request !4475 from JonathanY/batchnormgrad

Merge pull request !4758 from VectorSL/nhwc-support

Merge pull request !4559 from chenweifeng/warning

fix pylint

changed doc and code for SmoothL1Loss to be same a dchip. fixed grad kernel

fix ci

Merge pull request !4024 from JonathanY/roihalf

Merge pull request !4048 from linqingke/new_ops

Merge pull request !3831 from danishnxt/GPU_One

commit 2

lint fix

lint fix 2

updated backprop + st test

test_file_fix

test_file_fix_2

fixed header_guards

comments addressed

clangFormatFix

primitive for im2col

fix bug

clang code format

clang format fix

fix pylint

fix license

delete useless code

Merge pull request !3803 from baihuawei/loss

Merge pull request !3780 from baihuawei/losscuda

Merge pull request !3341 from tom_chen/maxpool_with_argmax

Merge pull request !3344 from danishnxt/PR-GPU-Pad

Merge pull request !3285 from linqingke/gpu_ops

clang format fix

fix format - cpplint

Merge pull request !3201 from JonathanY/main

Merge pull request !3240 from VectorSL/update

Merge pull request !3244 from yangyongjie/yangyongjie