* Defined a common base class for TensorComputeOp and ComputeOp

* Made changes requested by @ZihengJiang

* added a testcase to assert that `tensorize` does not have any effect on TensorComputeOp ops.

* move layout.h & layout.cc from relay to tvm

* change ConvertLayout in relay to bijectiveLayout->Forward/backward

* add first test case

* add LayoutAxis

* add LayoutAxis struct and compiles

* simplify BijectiveLayout rule consturct

* polish func name for Layout, move impl to .cc, remove Layout::defined(), add defined() checker

* partially add layout py support

* add layout test cases

* add doc for tvm.layout & tvm.bijective_layout

* fix lint

* fix lint

* fix layout name generation bug

* fix layout typo

* address comments and add topi.layout_transform

* layout.h->data_layout.h, test_lang_layout.py->test_lang_data_layout.py

* i think it works for now?

* fix lint

* fix 2/3 compat

* fix py2 again

* fine, i gave up

* Add eager simplication for FloatImm

* fix

* fix lint

* Fix gcc warning

* fix

* Add test case

* fix storage_rewrite bug when input is big

* cast when necessary

* simplification

* simplification

* int64->uint32

* revert uint32->int64

* a preliminary version is done?

* we no longer need the redundant hybrid/api.py

* support assert stmt

* cast supported

* intrin -> runtime; util is mainly in charge of compilation time

* assert statement

* fix python lint

* fix cpp lint

* on the way to module

* rollback .cc

* fix typo, no direct expose then

* @vinx13 ceil is added i guess?

* wip...

* temp commit

* fix import

* i preliminary version is done?

* on the way to build hybrid module

* nearly fixed...

* dumped python are equiv as original python

* on the way to bootstrap

* cpu bootstrap done

* bootstrap!

* fix lint

* fix doc

* resolve some review concerns

* support load/save

* fix lint

* thanks to xqdan fixed my typo

* fix build, make dump non-optional

* add vthread

* jesus why i added this

* [TVM][BUGFIX] Fix reductions in split axes

* A test case for the problem

* Fix the fix: skip loops that are related to reduction AND are unrelated to axis

* on the way to enable hybrid schedule

* I think I am done with imperfect loop split?

* copyright watermark

* loop annotation

* fix lint

* fix lint 1

* shit!

* loop reorder supported

* support bind to add some tests

* fused tested

* imperfect loop testcase

* fix lint

* add bind testcase

* fix doc

* fix online edit typo

* resolve @mercymercy review

* fix indent

* i should convince myself it is not flaky test first

* fix test hybrid

* how many flaky test are you expecting; i ball ball u to let me pass

* rebase halide...

Add trace call expr to allow trace Tensor data
at the runtime. By default the default handler
is enabled which prints a tracing data to stdout,
otherwise user should specify a call_back as
global_function (aka @tvm.register_func).

The issue is related to:
https://discuss.tvm.ai/t/idea-trace-expression/945

* Enhanced simplification rules for Div by a positive constant

* Fixed my last commit to correctly interpret TVM's division as truncated division

* Fixed implemenation of IntSet::can_prove_non_positive()

* addressed comments by @yzhliu

* addressed comments by @sgrechanik-h

* addressed more comments by @yzhliu

Also enable Mul caching for more cases

The pass which instruments checkers before
memory accesses (load/store).
This allows to handle invalid memory accesses.

The patch is related to issue:
https://discuss.tvm.ai/t/array-bounds-checking/944

* Implement C code generation with tests

* Code cleanup

* Implement C code generation with tests

* Code cleanup

* tabs to spaces

* make lint compliant

* update export_library and reserve unique C keywords

* move ReserveKeywordsAsUnique to codegen_c

* some documentation and code cleanup

* use tvm.contrib.util for tempdir in testcases

[HYBRID FRONTEND] Modify hybrid script to new interface; hybrid op supported; enable compilation_database in CMakeList.txt (#1757)

* Fix boundary check

* Add unittest