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torch-mlir/lib/Dialect/Torch/IR/CMakeLists.txt

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Start reworking towards a shared library build. * Need to have a dag of shared library deps in order to interop across python extensions (as presented in ODM). * Introduced add_npcomp_library and friends to mirror the MLIR setup. * Adds a libNPCOMP.so shared library. * Redirects tools and extensions to link against libNPCOMP.so (instead of static libs). * Moves all libraries to lib/, all binaries to bin/ and all python extensions to python/. The invariant is that the rpaths are setup to have a one level directory structure. * Reworks the _torch_mlir extension to build like the others (still need to come up with a consolidated rule to do this instead of open coded). * Includes an upstream version bump to pick up needed changes. Sizes with dynamic linking (stripped, release, asserts enabled): libNPCOMP.so: 43M (includes much of the underlying LLVM codegen deps) libMLIR.so: 31M _npcomp.so: 1.6M (python extension) _torch_mlir.so: 670K (python extension) npcomp-capi-ir-test: 6.3K npcomp-opt: 351K npcomp-run-mlir: 461K mnist-playground: 530K Still more can be done to normalize and optimize but this gets us structurally to the starting point.
2020-10-09 09:29:59 +08:00
add_npcomp_dialect_library(NPCOMPTorchDialect
Add boilerplate for Torch dialect.
2020-09-29 03:02:35 +08:00
TorchDialect.cpp
TorchOps.cpp
Move Torch type implementation code into TorchTypes.cpp
2021-06-11 07:46:20 +08:00
TorchTypes.cpp
Add boilerplate for Torch dialect.
2020-09-29 03:02:35 +08:00
ADDITIONAL_HEADER_DIRS
${PROJECT_SOURCE_DIR}/include/npcomp/Dialect/Torch
DEPENDS
MLIRTorchOpsIncGen
Add initial TorchScript module importer It turns out that this was easiest to structure as a general IValue importer, since torch module are just one of the possible IValue's. We import the IValue object graph in a braindead fashion into basicpy ops and a new `torch.nn_module` op that is used to model the attributes/methods of a torch::jit::Module IValue. See `Torch/ops.mlir` for an example, and also check out the .py import tests in `frontends/pytorch/test/module_import`. As part of this change, a few housekeeping tasks: - extract some helpers from graph_importer.cpp - more helpers around the C API - misc touchups
2021-01-28 08:35:44 +08:00
MLIRTorchTypesIncGen
Add boilerplate for Torch dialect.
2020-09-29 03:02:35 +08:00
LINK_COMPONENTS
Core
LINK_LIBS PUBLIC
MLIRIR
MLIRSupport
Add support for prim::Loop op. This is a funny one. It combines a `for` and `while` loop in one op. We will need to write some conversions to `scf`.
2021-03-02 07:00:32 +08:00
MLIRControlFlowInterfaces
Properly model "derefinement". In terms of IR structure, TorchScript allows types to vary in many circumstances where MLIR requires pointer-identical types. In particular, it is valid to pass any subtype in place of a type. For example, if an `Optional[int]` is required somewhere in the IR, it is legal to pass a value of just `int` (but not the other way around; see `torch.prim.unchecked_cast`). In effect, every *use* can have a different type. We introduce a new op `torch.derefine` that models that impedance mismatch. This op allows casting a value from one type to a type that it is a subtype of to model this behavior. Recommended review order: - TorchOps.td for new torch.derefine (and updated docs for `torch.prim.unchecked_cast`) - new test code in if.py, loop.py, function-derefine.py - new code in node_importer.cpp for handling derefinement insertion - function_importer.cpp and utils changes in torch_to_mlir_utils.cpp Properly handling derefinement on function boundaries required relayering the code so that graph_importer.cpp/.h is now function_importer.cpp/.h because only the `torch::jit::Function` (actually the `c10::FunctionSchema` it holds) knows the derefined types that are actually needed at the boundary (see `function-derefine.py` for a test). Annoyingly, this churns all the functions which are now prefixed with `__torch__.` but that is more correct anyway (that is their linkage name in the `torch::jit::CompilationUnit`; the previous `mb.import_function` was actually buggy in the case of functions calling each other as it would reference their unqualified name). With this change, we can import `resnet18` from `torchvision` :) IR: https://gist.github.com/silvasean/6426a5272d8a6c7caae533fce05ab704
2021-03-02 09:24:15 +08:00
MLIRSideEffectInterfaces
Add AllowsTypeRefinement trait and use it to improve RefineTypes This trait lets us model the semantics of various aten/torch/numpy ops that are insensitive to type refinements. This replaces hardcoded/inconsistent checks for this property. To show usage of this new trait, we fix up some old uses, and improve RefineTypes to be smarter about rewriting with this trait.
2021-04-29 05:36:46 +08:00
NPCOMPInterfaces
Add boilerplate for Torch dialect.
2020-09-29 03:02:35 +08:00
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