Teckyl: An MLIR frontend for Tensor Operations

Teckyl is released under the Apache License v2.0 with LLVM Exceptions. For details, see the file LICENSE.

This project is based on llvm-project. See the llvm-project subdirectory for details about the licensing.

Teckyl also uses code from the Tensor Comprehensions repository at https://github.com/facebookresearch/TensorComprehensions, licensed exclusively under the Apache Licence, version 2.0 (i.e., without LLVM exceptions). See the file teckyl/tc/LICENSE for details.

Building Teckyl

After cloning the repository, make sure that all submodules are up to date by executing

git submodule init && git submodule update

at the project root. You may then create a build directory, initialize the build files by invoking cmake and running make to build Teckyl as follows:

• mkdir build
• cd build
• cmake ..
• make teckyl or make -j<N> teckyl, where <N> is the number of cores of your build system

Running Teckyl

The build instructions above produce the teckyl binary in bin. The program takes at least two parameters: the name of an input file with tensor expressions and the -emit option that specifies what Teckyl should generate. Currently, Teckyl emits either a TC AST (-emit=ast) or MLIR (-emit=mlir).

You can give the frontend a quick test by generating MLIR for one of the examples in tests/inputs, e.g., by running

./bin/teckyl -emit=mlir ../tests/inputs/mv_explicit.tc

from the build directory.

Running the test suite

Teckyl comes with a set of test cases in tests/inputs. To run all tests, execute the script run_tests.sh from the build directory, e.g.,

• cd build
• ../run_tests.sh

Some of the tests require mlir-opt, mlir-translate, llc and FileCheck. To build these binaries, execute

• make -j mlir-opt mlir-translate llc FileCheck

in the build directory before launching run_tests.sh.