* [RUNTIME] Minimum graph runtime

* update docs

* [INTRIN] Enable pow

* rename pow->power

* fix

* [CODEGEN] Redo CodegenLLVM.

* Add remarks about origin of the pass

Properly acknowledge related projects

* Fix and expression

* [METAL] use 32bit indexing for metal until we have a bound adapted pass

* fix lint

* [RPC] Expose module handle

* not include handle

* [PASS] Fix intrinsic lowering with fma and other intrin

* relax rtol for sqrt

* added initial llvm codegen for amdgpu

* fixed whitespace

* fixed hsaco gen from ir

* fixed targetmachine for rocm and added GetSource for rocm

* fixed whitespace issues

* changed statement to use less than 100 lines

* added intrinsics for workgroup - rocm

* whitespace - newline error fix

* fixed error msg for workitem-workgroup intrinsics

* added llvm ir dump for rocm codegen

* [ROCM] changed codegen to emit proper amdgpu kernel header

* fixed whitespace error

* fixed whitespace error- 2

* fixed AddFunction to not to use extra arg

1. Changed AddFunctionInternal to not to take extra arg for target type
2. Use Target from CodeGenLLVM to check for AMDGPU target

* fixed whitespaces

* fixed whitespaces 2

* fixed codegen for AMDGPU - now generating valid IR

* fixed codegen depending on code review

* reviewed alignment for amd devices

* added code to dump code object to file

* fixed cpplint errors

* print out IR after pass manager

* added code to dump asm, obj to file and std string

* fixed whitespaces

* Update codegen_amdgpu.cc

* used registry for amdgpu llvm

* Fixed whitespaces

* added code for calling linker

* fixed formatting errors

* added rocm link python interface

* fixed pylint issues and added more body to the function

* added doc string

* added doc string for module

* fixed python code after review, fixed llvm object codegen

* fixed linker to generate code object

* removed dumping to output file and debugging log out

* fixed lint for python code

* added fault check after running linker

* removed print statement in rocm.py

* changed rocm lld linker to raise runtimeerror than emitting error log to stderr

* changed the way linker command line is pass to subprocess.popen

* removed redundant code and reuse tvm utils

* removed commented out code

* removed cloning of unused modules, and put IR into string

Clarify confusing error message for unmatched context

* [RUNTIME] Enable extension type to PackedFunc.

* More comments

* [RUNTIME][RPC] Enable remote linking of device code.

* fix build

* [SCHEDULE] Enahance cache_write to enable layout change.

* more tests

* [SETUP] Always use relpath for setup

* [CMAKE] Fix cmake llvm build

* [SCHEDULE][PASS] support storage_align of certain axis

* fix lint

* [CODEGEN] NVPTX backend.

* Fix pylint

* use fix

* v2: runtime support for rocm

* fixed coding space errors

* removed kROCM from c_runtime_api.h

* [BUILD][LLVM] Support LLVM mainline 5.0 6.0

* Reduce parallelism

* [NNPack] Support for threadpool

* fix lint

* fix lint

* Use static class function

* [Contrib] CuDNN v7 Support

* Add test