mirror of https://github.com/llvm/torch-mlir
f168cacd6d
These were legacy concepts that are now superceded by direct Torch to linalg-on-tensors lowering. These were based on some very early thinking related to the layering of frontends vs codegen, which is now obsolete because: - We expected a lot more centralization at the frontend (TCF) level. It turns out that frontend needs really vary a lot, and there is no grand unifying TCF dialect plausible. The additional layer isn't worth it. - Linalg-on-tensors obsoletes the primary need for TCP. There are still a few things not representable with linalg-on-tensors, but the support is growing and the whole "not included in linalg-on-tensors" direction needs to be rethought. Our TCP dialect didn't cover any of the actually important things in this space (such as sort, FFT, top-k, etc.). See historical [slides](https://drive.google.com/file/d/1iljcpTQ5NPaMfGpoPDFml1XkYxjK_6A4/view) / [recording](https://drive.google.com/file/d/1jSPa8TwPKUt0WuLquGc8OgSUVYJHMvWZ/view) for more details on the origin story here. Their presence was confusing users too [bug](https://github.com/llvm/mlir-npcomp/issues/248). Also, - Trim down npcomp-run-mlir testing. It was testing TCF to TCP lowering for the most part. The essential stuff is retained and rephrased with linalg-on-tensors. (we should probably rename it "refback-run" or something, as it is just a way to invoke RefBackend) - test/Python/Backend/RefJIT/simple_invoke_numpy.py is XFAIL'ed. Our "anti-framework" direction seems to be the likely future path. |
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| .. | ||
| JITHelpers | ||
| Runtime | ||
| CMakeLists.txt | ||
| LowerToLLVM.cpp | ||
| LowerToRefbackrtABI.cpp | ||
| PassDetail.h | ||
| RefBackend.cpp | ||