* fix conv 2-pad to 4-pad

* fix compute conv shape

* fix pad, test=develop

* change conv_depthwise_3x3s1_fp.cc name to conv3x3s1p01_depthwise_fp32.cc to distinguish between conv3x3s1_depthwise_fp32.cc

* delete printf note in conv3x3s1, test=develop

* delete printf note, test=develop

* delete gem_sdot.h, test=develop

it is coped from __gemm_sdot_meta_.h

* update compute padding, test=develop

* fix padding size, must be 2 or 4. test=develop

* fix format in operators/conv_op.cc, test=develop

* change #if 0 to #if 1, test=develop

* put 2-pad to 4-pad in AttachImpl, test=develop

* fix clang-format error inn tests/math/connv_compute_test, test=develop

* fix x86 test result error, test=develop

* add asymmetric padding test case in liite/tests/math/conv_compute.cc, test=develop

* change paddings type to support dynamically modify, test=develop

* fix x86 build error in connv_compute_test, test=develop

* fix opencl build error, test=develop

* fix oopencl build error, test=develop

* fix  opencl/conv_compute build error, test=develop

* fix  opencl/conv_compute build error, test=develop

* fix format in kernels/opencl/conv_computte_ttest,test=develop

* fix build error, test=develop

fix build error in kernels/x86/conv_compute.h

* fix ccompute shape error in ooperators/conv_op.h, test=develop

* add opencl concat kernell

* fix

* fix

* add model input test

* fix build error

* fix builld error

* add ut in opencl

* add ut

* fix kernel name

* fix kernel namedd

* fix ut

* add concat ut, test=develop

* fix axis compute, test=develop

* add other axis, test=develop

* fix ut. test=develop

* fix format

* delete extra files, test=develop

* fix origin, test=develop

* fix format. test=develop

* fix format2 test=develop

* add leakyrelu and tanh compute

* add init val

* fix leakyrelu and tanh compute error, test=develop

* fix leakyrelu and tanh compute error, test=develop

* delete extra file, test=develop

* delete file

* fix format

* delete extra file, test=develop

* fix format， test=develop

* fix format. test=develop

* add grid sampler

* reset act

* fix conflict and readme, test=develop

* fix ios run error, test=develop

* fix ios run error

* fix ios v8 run error

* fix grid_sampler compute error. test=develop

* fix exp act run error, test=develop

* fix format, test=develop

* fix format， test=develop

* fix redefine error

* fix format, test=develop

* add bilinear interp

* fix formart

* fix build error

* fix pad2d error

* fix format

* fixr

* fix

* fix format. test=develop

* fix format, test=develop

* fix resize error

* fix format. test=develop

* fix format, test=develop

* fix format

* note log(4) << x_image. test=develop

* note x_image printf. test=develop

* fix v7 clang bug. test=develop

* fix format, test=develop

* fix .a build bug, test=develop

* fix resize bug

* fix resize bug

* test=develop

* add cvv ut

* fix clang v7 error

* fix cv errorr, test=develop

* fix conv test bug, test=develop

* fix ut

* fix ut , test=develop

* fix format, test=develop

* change ut, test=develop

* change ut, test=develop

* fix conv ut, test=develop

* fix format, test=develop

* fix resie bug

* fix format, test=develop

* fix compute error

* fix format, test=develop

* fix format, test=develop

* fix memory bug, test=develop

* fix format. test=develop

* improve conv_dw profile with rel relu6 leakyrelu, test=develop

* add depthwise, test=develop

* fix ci error, test=develop

* fix cv demo print, test=develop

* test=develop

* fix build error, test=develop

* [LITE][OPENCL] Change fp32 fc to fp16's. test=develop

* fix act in conv3x3opt opencl kernel. test=develop

* [LITE][OPENCL] fix opencl fc kernel. test=develop

* [LITE][OPENCL] add lws for opencl conv image kernel. test=develop

* [LITE][OPENCL] Change fp32 fc to fp16's. test=develop

* fix act in conv3x3opt opencl kernel. test=develop

* [LITE][OPENCL] fix opencl fc kernel. test=develop

* [LITE][OPENCL] Change fp32 fc to fp16's. test=develop

* fix act in conv3x3opt opencl kernel. test=develop

* [LITE][OPENCL] Fix issue(previous definition in gcc.a) armv7 gcc compile for opencl. test=develop

* improve conv_dw profile with rel relu6 leakyrelu, test=develop

* add depthwise, test=develop

* fix ci error, test=develop

* fix cv demo print, test=develop

* [ARM] improve sgemm performance with relu, relu6 and leakey relu, test=develop

* [ARM] improve sgemm performance with relu, relu6 and leakey relu, test=develop

* fix resie bug

* fix format, test=develop

* fix memory bug, test=develop

* fix format. test=develop

* [LITE][OPENCL] Change fp32 fc to fp16's. test=develop

* fix act in conv3x3opt opencl kernel. test=develop

* [LITE][DEMO] fix input arg. test=develop

* fix shutdownlog for std::endl. test=develop

* [LITE][OPENCL] Change fp32 fc to fp16's. test=develop

* fix act in conv3x3opt opencl kernel. test=develop

* [LITE][DEMO] Enhance mobile_light demo. test=develop

* fix print. test=develop

* fix clang v7 error
* change ut, test=develop
* fix conv ut, test=develop

* [Core] Fix findar for Clang
test=develop

* [CORE] Fix the missing of feed and fetch kernel when using light API to loade the optimized model
test=develop

* add mean op, test=develop

* split forward and backward, test=develop

add pad2d image kernel and ut

* feat: add dropout opencl kernel

* fix v7 clang bug. test=develop

* fix format, test=develop

* fix .a build bug, test=develop

* [NPU] revert shape check for input&output

* [NPU] reshape elt input&output

* feat: add opencl elementwise_sub op & ut

* fix clang compile armv8 cpu 's shared lib. test=develop

* use build-in shared helper function. test=develop

add instance norm kernel and ut

* set arm_lang default is off. test=develop

* fix resize error, test-develop

* add lookup_dequant_op

* feat: add opencl elementwise_sub op & ut

* enhance gather, lookup_table arm kernel uts

* enhance beam_search, beam_search_decoder, increment rigster

[LITE][OPENCL][Image] revert router of depthwisespl --> fix mnasnet and nanoyolo ,test=develop (#3109)

* [CORE] Support Clang compiling for Android
test=develop

* fix lto for jni so
test=develop

* disable assembly code
test=develop

* disable layout.cc
test=develop

* refine
test=develop

* Enable LTO on Clang
test=develop

* Disable LTO when clang is used.
test=develop

* Remove space
test=develop

* [Core] enable clang in build.sh
test=develop

* [Core] Remove the workaround for clang compiling
test=develop

* add lrn op

* fix v7 build error, test=develop