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* Previously, we were only generating .h.inc files. We foresee the need to also generate implementations and this is a step towards that. * Discussed in https://llvm.discourse.group/t/generating-cpp-inc-files-for-dialects/3732/2 * Deviates from the discussion above by generating a default constructor in the .cpp.inc file (and adding a tablegen bit that disables this in case if this is user provided). * Generating the destructor started as a way to flush out the missing includes (produces a link error), but it is a strict improvement on its own that is worth doing (i.e. by emitting key methods in the .cpp file, we root vtables in one translation unit, which is a non-controversial improvement). Differential Revision: https://reviews.llvm.org/D105070
An out-of-tree MLIR dialect
This is an example of an out-of-tree MLIR dialect along with a standalone opt-like tool to operate on that dialect.
Building
This setup assumes that you have built LLVM and MLIR in $BUILD_DIR and installed them to $PREFIX. To build and launch the tests, run
mkdir build && cd build
cmake -G Ninja .. -DMLIR_DIR=$PREFIX/lib/cmake/mlir -DLLVM_EXTERNAL_LIT=$BUILD_DIR/bin/llvm-lit
cmake --build . --target check-standalone
To build the documentation from the TableGen description of the dialect operations, run
cmake --build . --target mlir-doc
Note: Make sure to pass -DLLVM_INSTALL_UTILS=ON when building LLVM with CMake in order to install FileCheck to the chosen installation prefix.