1# An out-of-tree MLIR dialect 2 3This is an example of an out-of-tree [MLIR](https://mlir.llvm.org/) dialect along with a standalone `opt`-like tool to operate on that dialect. 4 5## Building 6 7This setup assumes that you have built LLVM and MLIR in `$BUILD_DIR` and installed them to `$PREFIX`. To build and launch the tests, run 8```sh 9mkdir build && cd build 10cmake -G Ninja .. -DMLIR_DIR=$PREFIX/lib/cmake/mlir -DLLVM_EXTERNAL_LIT=$BUILD_DIR/bin/llvm-lit 11cmake --build . --target check-standalone 12``` 13To build the documentation from the TableGen description of the dialect operations, run 14```sh 15cmake --build . --target mlir-doc 16``` 17**Note**: Make sure to pass `-DLLVM_INSTALL_UTILS=ON` when building LLVM with CMake in order to install `FileCheck` to the chosen installation prefix. 18 19