$ git clone https::https://github.com/llvm/llvm-project
$ cd llvm-project
$ mkdir build && cd build
$ cmake -G Ninja ../llvm \
    -DLLVM_ENABLE_PROJECTS=mlir \
    -DLLVM_TARGETS_TO_BUILD="X86;NVPTX;AMDGPU" \
    -DCMAKE_BUILD_TYPE=Release \
    -DLLVM_ENABLE_ASSERTION=ON \
    -DLLVM_ENABLE_RTTI=ON \
    -DLLVM_INSTALL_UTILS=ON \
    -DMLIR_INCLUDE_INTEGRATION_TEST=ON \

$ ninja
$ sudo ninja install

$ cd mlir-toy
$ mkdir build && cd build
$ cmake -G Ninja ..
$ ninja

$ ./build/bin/toyc-ch1 test/Ch1/ast.toy -emit=ast