* Ported injective schedules to C++. Added some elementwise ops.

* Fix lint errors

* Added reduction ops and schedules

* Fix lint errors

* Fix lint errors

* Fix lint errors

* Added transform ops

* Fix lint errors

* Fix lint errors

* Added softmax, log_softmax, leaky_relu and flatten ops.
Fixed issue where TVM_DECLARE_INTRIN_UNARY used the PureExtern flag
instead of PureIntrinsic.
Added softmax CUDA schedule.

* Fix lint

* Fix lint

* Added binary_dense, batch_norm_inference, dense, dilate, scale_shift_*,
global_pool and pool ops.
Extended pad to allow specifying pad_value.
Fixed issue where pad would throw if padding was zero in all dimensions.

* Fix lint

* Fix lint

* Added CUDA schedules for dense, pool and global_pool

* Added extern schedules for generic and CUDA

* Fix lint

* Added x86 binary schedules

* Fix lint

* Added rocm dense schedule. Added rocBLAS and cuBLAS support to dense ops

* Added pow ops. Added x86 default and injective schedules

* Fix lint

* Fix lint

* Fix lint

* Fix lint

* Fix lint

* Fix indent

* Removed schedules directory

* Changed left_shift, right_shift to operators. Changed pad_value in pad() to remove pointer usage

* Fixed usage of pad in nn/pooling.h. Fixed declaration of operator>>

* Fixed comments for shift operators

* Added comments to utility functions

* Added TOPI C++ library, exporting broadcast_add op

* Fix lint

* Share libinfo.py with TVM

* Fix lint

* Add other broadcast ops

* Fix lint

* Fix imports in topi

* Fix lib names

* Fixed build issue where windows builds don't apply correct definitions

* Removed TVM_EXPORTS from topi library

* Attempted CI build fix

* Add topi lib to tvm_multilib

* Fix Jenkinsfile

* Added TOPI build target to Makefile

* Fix nn op namespaces.

* Fix lint

* Renamed TOPI lib to libtvm_topi

* Removed _ffi/base.py

* Remove _ffi from topi, now shared with tvm.

* Make libtvm_topi loading optional

* Fix compiler warnings

* Fix lint

* Fix lint

* Fix lint

* Fix build error by making new libs argument to Target optional

* Added C++ Target type interop. Added registration of remaining C++ ops and schedules. Added test of broadcast ops

* Fix lint

* Fix lint

* Fix compile error

* Fix compiler warnings

* Fix compiler warnings

* Fixed int vector interop. Fixed argmin incorrectly invoking argmax. Fixed corner case in default schedules of attempting to fuse 0 length axes. Added tests for reduce ops.

* Refactored reduce builders

* Fixed typos in topi.cc. Added basic test.

* Fixed padding size error. Added dense, dilate, pooling tests

* Fixed issue where clip would output a different dtype to the input. Added split_sections op to cover the other mode of the python split op. Added tests.

* Changed extension type numbers to avoid clash with NNVM

* Fix lint

* Fix compiler warnings

* Removed use of std::vector from the public TOPI API

* Fix lint

* Add TOPI C++ tests to CI

* Fixed detail namespacing. Improved comments.

* when there is no intrin func, using body for initialization. For issue 714.

* Refine code per review comments, and add a test case.

* Fix lint issues.

* Re-organize the tensorize test cases, and add a new case for none-reset
mode.

* Fix a typo.

* Delete the unit case because merged it into test_schedule_tensorize.py already.

* always use new tensor in its stage when rewrite for cache read

* revert previous changes to sync up with master

* support using the ptr with an original offset

* update test case and fix CI error

* OpenGL texture is always 1024 x nrows.

* Address review comments.

* modified schedule_dataflow_rewrite.cc to fix losing tensor problem

* modified schedule_dataflow_rewrite.cc for lint scan

* modified schedule_dataflow_rewrite.cc for lint scan

* using tensor's value_index to index output of stage op

* repare address offset for different kinds of dtype

* bc

* aaa

* aaaaa

* repare address for different dtypes

* remove nonsense files

* add whitespace of line 581

* use base alloc elem_type

* enhance the testcast of basic buffer is 64bits,32bits,16bits,8bits

* use extends[0]->type() as dtype of offset

* clear program writes

The compilation warning is fixed. 
src/runtime/graph/graph_runtime.cc:392:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   CHECK(data_byte_size == size)
         ~~~~~~~~~~~~~~~^~~~
/mnt/D_DRIVE/work/nnvm_22_Jan/nnvm_latest/tvm/dmlc-core/include/dmlc/logging.h:109:9: note: in definition of macro ‘CHECK’
   if (!(x))                                                \
         ^

fix errors when running `python3 setup.py sdist bdist_wheel`

This compilation warning is fixed.
src/pass/inject_virtual_thread.cc:43:19: warning: ‘rw_mask’ may be used uninitialized in this function [-Wmaybe-uninitialized]
       if (rw_mask & 2) {
           ~~~~~~~~^~~

Basic WebGL Backend

* Support dump ir for each pass(#693)

* expose DumpIR

* fix comments

* fix comments

* fix upsampling output shape

* simplify expr in get_const_tuple

* Add Mali target support to tvm.target.create

* Add Mali target support in codegen

The type of parameter options should be a str list.

* add basic x86 schedules

* parallelize & vectorize batchnorm + relu

* fuse conv into bn + relu

* move rc loop to outer

* add nhwc conv

* change weight layout to hwcf

* conv + bn + relu fusion for nhwc conv

* fix conv_nhwc schedule when no fusion

* clean up default parallel schedules

* simplify elemwise parallel

* fix elemwise parallel for batch == 1

* update nhwc conv test

* fix and add comment

* fix lint

* remove redundant import

* remove default multithreading for some ops

* remove default multithreading for global pool

* add schedule for ARM Mali GPU

* fix lint

* fix lint

* support more argument type in depthwise_conv2d

* mark all pointer as 'restrict' & fix vector conversion for opencl

try to fix

fix

* [LLVM] Enable same target option in JITModule

* not set mcpu explicitly

* add upsampling cpu op

* add upsampling gpu schedule

* add doc for upsampling op

add more doc

* cleanup upsampling test

* add doc

* fix lint

* fix lint

* fix lint

* remove unused import

* remove skimage dependency

* remove skimage import

* remove schedule_upsampling

* small fixs on docs

* add IR output after parallelization

* [PASS] Improve loop partition to remove un-necessary warning.

* fix comment