Breakup python pytorch deps (#2582)

This lifts the core of the jit_ir_importer and ltc out of the pt1
project, making them peers to it. As a side-effect of this layering, now
the "MLIR bits" (dialects, etc) are not commingled with the various
parts of the pt1 project, allowing pt1 and ltc to overlay cleanly onto a
more fundamental "just MLIR" Python core. Prior to this, the Python
namespace was polluted to the point that this could not happen.

That "just MLIR" Python core will be introduced in a followup, which
will create the space to upstream the FX and ONNX pure Python importers.

This primary non-NFC change to the API is:

* `torch_mlir.dialects.torch.importer.jit_ir` ->
`torch_mlir.jit_ir_importer`.

The rest is source code layering so that we can make the pt1 project
optional without losing the other features.

Progress on #2546.

.github/workflows/buildAndTest.yml

@@ -27,15 +27,12 @@ jobs:
       matrix:
         os-arch: [ubuntu-x86_64, macos-arm64, windows-x86_64]
         llvm-build: [in-tree, out-of-tree]
-        torch-binary: [ON, OFF]
+        torch-binary: [ON]
         torch-version: [nightly, stable]
         exclude:
-          # Exclude llvm in-tree and pytorch source
-          - llvm-build: in-tree
-            torch-binary: OFF
-          # Exclude llvm out-of-tree and pytorch binary
+          # Exclude llvm out-of-tree and pytorch stable (to save resources)
           - llvm-build: out-of-tree
-            torch-binary: ON
+            torch-version: stable
           # Exclude macos-arm64 and llvm out-of-tree altogether
           - os-arch: macos-arm64
             llvm-build: out-of-tree
@@ -45,9 +42,6 @@ jobs:
             llvm-build: out-of-tree
           - os-arch: windows-x86_64
             torch-version: stable
-          # For PyTorch stable builds, we don't build PyTorch from source
-          - torch-version: stable
-            torch-binary: OFF
         include:
           # Specify OS versions
           - os-arch: ubuntu-x86_64

.gitignore

@@ -26,7 +26,7 @@ __pycache__
 bazel-*
 
 # Autogenerated files
-/projects/pt1/python/torch_mlir/csrc/base_lazy_backend/generated
+/projects/ltc/csrc/base_lazy_backend/generated
 
 #Docker builds
 build_oot/

CMakeLists.txt

@@ -149,10 +149,12 @@ endfunction()
 # Configure CMake.
 list(APPEND CMAKE_MODULE_PATH ${MLIR_MAIN_SRC_DIR}/cmake/modules)
 list(APPEND CMAKE_MODULE_PATH ${LLVM_MAIN_SRC_DIR}/cmake)
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/build_tools/cmake)
 
 include(TableGen)
 include(AddLLVM)
 include(AddMLIR)
+include(AddMLIRPython)
 
 ################################################################################
 # Setup python.
@@ -231,6 +233,4 @@ endif()
 # Sub-projects
 #-------------------------------------------------------------------------------
 
-if(TORCH_MLIR_ENABLE_PROJECT_PT1)
-  add_subdirectory(projects/pt1)
-endif()
+add_subdirectory(projects)

build_tools/autogen_ltc_backend.py

@@ -29,7 +29,6 @@ if not TORCH_INCLUDE_DIR.is_dir():
     TORCH_INCLUDE_DIR = TORCH_DIR
 TORCHGEN_DIR = Path(torchgen.__path__[0]).resolve()
 TORCH_MLIR_DIR = Path(__file__).resolve().parent.parent
-TORCH_MLIR_PT1_DIR = TORCH_MLIR_DIR / "projects" / "pt1"
 
 def reindent(text, prefix=""):
     return indent(dedent(text), prefix)
@@ -114,12 +113,12 @@ class GenTorchMlirLTC:
         self.binary_dir = Path(binary_dir)
         assert self.binary_dir.is_dir(), f"Binary directory not found: {self.binary_dir}"
         self.source_yaml = self.binary_dir.joinpath("generated_native_functions.yaml")
-        self.backend_path = TORCH_MLIR_PT1_DIR.joinpath(
-            "python", "torch_mlir", "csrc", "base_lazy_backend"
+        self.backend_path = TORCH_MLIR_DIR.joinpath(
+            "projects", "ltc", "csrc", "base_lazy_backend"
         )
         assert self.backend_path.is_dir(), f"Backend path not found: {self.backend_path}"
         self.generated_path = self.binary_dir.joinpath(
-            "projects", "pt1", "python", "torch_mlir", "csrc", "base_lazy_backend", "generated"
+            "projects", "ltc", "csrc", "base_lazy_backend", "generated"
         )
         self.generated_path.mkdir(parents=True, exist_ok=True)
 
@@ -415,7 +414,7 @@ class GenTorchMlirLTC:
                     // for ops that dont have a corresponding structured kernel or shape definition
 
                     #include "shape_inference.h"
-                    #include "torch_mlir/csrc/base_lazy_backend/utils/exception.h"
+                    #include "base_lazy_backend/utils/exception.h"
                     namespace torch {{
                     namespace lazy {{
                     {}
@@ -467,7 +466,7 @@ class GenTorchMlirLTC:
             node_base="torch::lazy::TorchMlirNode",
             node_base_hdr=str(self.backend_path.joinpath("mlir_node.h")),
             tensor_class=self.tensor_class,
-            tensor_class_hdr="torch_mlir/csrc/base_lazy_backend/tensor.h",
+            tensor_class_hdr="base_lazy_backend/tensor.h",
             create_aten_from_ltc_tensor="CreateFunctionalizedAtenFromLtcTensor",
             shape_inference_hdr=str(self.generated_path.joinpath("shape_inference.h")),
             lazy_ir_generator=GenMlirLazyIr,

build_tools/python_deploy/build_linux_packages.sh

@@ -364,9 +364,9 @@ function setup_venv() {
 function build_out_of_tree() {
   local torch_from_bin="$1"
   local python_version="$2"
-  echo ":::: Build out-of-tree Torch from binary: $torch_from_bin with Python: $python_version"
-
   local torch_version="$3"
+  echo ":::: Build out-of-tree Torch from binary: $torch_from_bin with Python: $python_version ($torch_version)"
+
   local enable_ltc="ON"
   if [[ "${torch_version}" == "stable" ]]
   then

build_tools/update_abstract_interp_lib.sh

@@ -42,6 +42,6 @@ if [ ! -z ${TORCH_MLIR_EXT_MODULES} ]; then
 fi
 
 PYTHONPATH="${pypath}" python \
-  -m torch_mlir.dialects.torch.importer.jit_ir.build_tools.abstract_interp_lib_gen \
+  -m torch_mlir.jit_ir_importer.build_tools.abstract_interp_lib_gen \
   --pytorch_op_extensions=${ext_module:-""} \
   --torch_transforms_cpp_dir="${torch_transforms_cpp_dir}"

build_tools/update_torch_ods.sh

@@ -43,7 +43,7 @@ fi
 
 set +u
 PYTHONPATH="${PYTHONPATH}:${pypath}" python \
-  -m torch_mlir.dialects.torch.importer.jit_ir.build_tools.torch_ods_gen \
+  -m torch_mlir.jit_ir_importer.build_tools.torch_ods_gen \
   --torch_ir_include_dir="${torch_ir_include_dir}" \
   --pytorch_op_extensions="${ext_module}" \
   --debug_registry_dump="${torch_ir_include_dir}/JITOperatorRegistryDump.txt"

docs/Torch-ops-E2E-implementation.md

@@ -17,7 +17,7 @@ The end-to-end test is important to check the correctness of the other steps.
 
 ### Step 2. Update ods
 
-Update [torch_ods_gen.py](https://github.com/llvm/torch-mlir/blob/main/projects/pt1/python/torch_mlir/dialects/torch/importer/jit_ir/build_tools/torch_ods_gen.py) with the new op and run [update_torch_ods.sh](https://github.com/llvm/torch-mlir/blob/main/build_tools/update_torch_ods.sh) to generate the ods. Running `update_torch_ods.sh` would dump all the operators with schema into `JITOperatorRegistryDump.txt`. It’s convenient to look for ops signatures and operands names in this file.
+Update [torch_ods_gen.py](https://github.com/llvm/torch-mlir/blob/main/projects/pt1/python/torch_mlir/jit_ir_importer/build_tools/torch_ods_gen.py) with the new op and run [update_torch_ods.sh](https://github.com/llvm/torch-mlir/blob/main/build_tools/update_torch_ods.sh) to generate the ods. Running `update_torch_ods.sh` would dump all the operators with schema into `JITOperatorRegistryDump.txt`. It’s convenient to look for ops signatures and operands names in this file.
 
 ### Step 3. Propagate types
 It’s essential to make sure the new op implements shape and dtype inference. See [abstract_interp_lib](https://github.com/llvm/torch-mlir/blob/main/docs/abstract_interp_lib.md) for information on adding shape and dtype inference.

docs/abstract_interp_lib.md

@@ -26,7 +26,7 @@ The two main use cases are:
 ## Architecture
 
 Functions are defined as TorchScript-able Python functions in
-`python/torch_mlir/dialects/torch/importer/jit_ir/build_tools/abstract_interp_lib_gen.py`.
+`python/torch_mlir/jit_ir_importer/build_tools/abstract_interp_lib_gen.py`.
 The signatures of the functions are systematically derived from Torch JIT
 operator registry. Most shape functions are expected to reuse the upstream
 helper functions

docs/adding_an_e2e_test.md

@@ -87,7 +87,7 @@ following order:
 
 1. Shape of input tensor. Use `-1` for dynamic dimensions
 2. Dtype of the input tensor
-3. Boolean representing whether the input tensor [has value semantics](https://github.com/llvm/torch-mlir/blob/ba17a4d6c09b4bbb4ef21b1d8d4a93cb056be109/python/torch_mlir/dialects/torch/importer/jit_ir/csrc/class_annotator.h#L54-L67). This
+3. Boolean representing whether the input tensor [has value semantics](https://github.com/llvm/torch-mlir/blob/ba17a4d6c09b4bbb4ef21b1d8d4a93cb056be109/python/torch_mlir/jit_ir_importer/csrc/class_annotator.h#L54-L67). This
    will always be true for E2E tests, since the [Torch-MLIR backend contract](architecture.md#the-backend-contract) requires all tensors in the
    IR to eventually have value semantics.
 

docs/architecture.md

@@ -55,14 +55,14 @@ factored such that we can handle this with one core import path, which is
 through the PyTorch
 "[JIT IR](https://github.com/pytorch/pytorch/blob/78c8a0d75220bdd4955415b5f81509e005af4232/torch/csrc/jit/OVERVIEW.md)",
 and lives in
-[torch-mlir/python/torch_mlir/dialects/torch/importer/jit_ir](https://github.com/llvm/torch-mlir/tree/e322f6a8784009b37aa354abfa9a40a80f30877d/python/torch_mlir/dialects/torch/importer/jit_ir).
+[torch-mlir/python/torch_mlir/jit_ir_importer](https://github.com/llvm/torch-mlir/tree/e322f6a8784009b37aa354abfa9a40a80f30877d/python/torch_mlir/dialects/torch/importer/jit_ir).
 The JIT IR is a highly principled IR that faithfully models a Python subset (+
 tensors, the PyTorch op registry, and a few other things). All the other PyTorch
 program representations can eventually bottom-out on the JIT IR via some path
 provided by PyTorch. The `torch` dialect is almost entirely in 1:1
 correspondence with the JIT IR -- this allows the importer to be extremely small
 (the core is
-[under 500 lines of code](https://github.com/llvm/torch-mlir/blob/e322f6a8784009b37aa354abfa9a40a80f30877d/python/torch_mlir/dialects/torch/importer/jit_ir/csrc/node_importer.cpp#L1)).
+[under 500 lines of code](https://github.com/llvm/torch-mlir/blob/e322f6a8784009b37aa354abfa9a40a80f30877d/python/torch_mlir/jit_ir_importer/csrc/node_importer.cpp#L1)).
 
 ### Ops
 
@@ -70,7 +70,7 @@ See [TorchOps.td](https://github.com/llvm/torch-mlir/blob/114f48e96c578ee76a6f83
 
 The ops in the `torch` dialect are almost entirely generated based on the
 PyTorch JIT IR operator registry via the script
-[torch_ods_gen.py](https://github.com/llvm/torch-mlir/blob/e322f6a8784009b37aa354abfa9a40a80f30877d/python/torch_mlir/dialects/torch/importer/jit_ir/build_tools/torch_ods_gen.py#L1) (invoked via [update_torch_ods.sh](https://github.com/llvm/torch-mlir/blob/main/build_tools/update_torch_ods.sh)).
+[torch_ods_gen.py](https://github.com/llvm/torch-mlir/blob/e322f6a8784009b37aa354abfa9a40a80f30877d/python/torch_mlir/jit_ir_importer/build_tools/torch_ods_gen.py#L1) (invoked via [update_torch_ods.sh](https://github.com/llvm/torch-mlir/blob/main/build_tools/update_torch_ods.sh)).
 This script queries the registry and generates MLIR
 [ODS](https://mlir.llvm.org/docs/OpDefinitions/) in
 [GeneratedTorchOps.td](https://github.com/llvm/torch-mlir/blob/e322f6a8784009b37aa354abfa9a40a80f30877d/include/torch-mlir/Dialect/Torch/IR/GeneratedTorchOps.td#L1). We have a guide for [adding a new op end-to-end](https://github.com/llvm/torch-mlir/wiki/Torch-ops-E2E-implementation).
@@ -195,7 +195,7 @@ values. When one `torch.jit.script`'s a `torch.nn.Module`, the result is
 actually an `IValue` that represents the module, with a hierarchy of children
 `IValue`'s. Strictly speaking, JIT IR `torch::jit::Graph`'s are only used to
 represent the bodies of methods on the modules. So in addition to importing the
-JIT IR, we also need to import the `IValue`'s. This happens inside [ivalue_importer.cpp](https://github.com/llvm/torch-mlir/blob/fde390c7669e29362b18388448ef2b188713383f/python/torch_mlir/dialects/torch/importer/jit_ir/csrc/ivalue_importer.cpp#L1).
+JIT IR, we also need to import the `IValue`'s. This happens inside [ivalue_importer.cpp](https://github.com/llvm/torch-mlir/blob/fde390c7669e29362b18388448ef2b188713383f/python/torch_mlir/jit_ir_importer/csrc/ivalue_importer.cpp#L1).
 
 Most of the IValue modeling can reuse `torch` dialect ops that already exist
 otherwise, such as `torch.constant.int` to represent an int in the object graph.

docs/ltc_backend.md

@@ -12,7 +12,7 @@
 [Lazy Tensor Core](https://github.com/pytorch/pytorch/blob/master/torch/csrc/lazy/tutorial.md) is a tracing system in PyTorch which is supported as an entry point to Torch-MLIR.
 After registering an LTC backend, all operations performed on lazy tensors are recorded and handed off to the backend implementation.
 
-LTC support is provided through an abstract [`TorchMlirBackendImpl`](../python/torch_mlir/csrc/base_lazy_backend/backend_impl.h) class, which handles the conversion to MLIR.
+LTC support is provided through an abstract [`TorchMlirBackendImpl`](../projects/ltc/csrc/base_lazy_backend/backend_impl.h) class, which handles the conversion to MLIR.
 Implementations based on this abstract class will be able to specify their own compile and execution workflows.
 Additional details about how to implement a custom backend is available [below](#Implementing-a-custom-backend).
 
@@ -27,7 +27,7 @@ View examples [here](ltc_examples.md).
   - The [autogen files](#autogen-files) are generated by this script based on the list of supported ops, which includes all ops from [`GeneratedTorchOps.td`](https://github.com/llvm/torch-mlir/blob/main/include/torch-mlir/Dialect/Torch/IR/GeneratedTorchOps.td),
     excluding those explicitly blacklisted in the YAML file
 
-### Autogen Files ([`python/torch_mlir/csrc/base_lazy_backend/generated`](../python/torch_mlir/csrc/base_lazy_backend/generated))
+### Autogen Files ([`projects/ltc/csrc/base_lazy_backend/generated`](../projects/ltc/csrc/base_lazy_backend/generated))
 Generated files are created in this directory, which is ignored by version control.
 
 - `LazyIr.h`
@@ -41,7 +41,7 @@ Generated files are created in this directory, which is ignored by version contr
 - `shape_inference.{cpp,h}`
   - Shape inference headers for supported ops and autogen'd placeholders for unimplemented functions
 
-### Base Backend ([`python/torch_mlir/csrc/base_lazy_backend`](../python/torch_mlir/csrc/base_lazy_backend))
+### Base Backend ([`projects/ltc/csrc/base_lazy_backend`](../projects/ltc/csrc/base_lazy_backend))
 
 - `backend_impl.{cpp,h}`
   - Base LTC backend to setup Torch-MLIR lowering context

include/torch-mlir/Dialect/Torch/IR/GeneratedTorchOps.td

@@ -13,7 +13,7 @@
 // This file is automatically generated.  Please do not edit.
 // Generated via:
 // ```
-// python -m torch_mlir.dialects.torch.importer.jit_ir.build_tools.torch_ods_gen
+// python -m torch_mlir.jit_ir_importer.build_tools.torch_ods_gen
 // ```
 //
 //===----------------------------------------------------------------------===//

projects/CMakeLists.txt

@@ -0,0 +1,44 @@
+include(AddMLIRPython)
+
+# Configure PyTorch if we have any features enabled which require it.
+if(TORCH_MLIR_ENABLE_JIT_IR_IMPORTER OR TORCH_MLIR_ENABLE_LTC)
+  message(STATUS "Enabling PyTorch C++ dep (features depend on it)")
+  include(TorchMLIRPyTorch)
+
+  TorchMLIRProbeForPyTorchInstall()
+  if(TORCH_MLIR_USE_INSTALLED_PYTORCH)
+    TorchMLIRConfigurePyTorch()
+  else()
+    # Assume it is a sibling to the overall project.
+    set(Torch_DIR "${PROJECT_SOURCE_DIR}/../libtorch/share/cmake/Torch")
+    message(STATUS "Attempting to locate libtorch as a sibling to the project: ${Torch_DIR}")
+  endif()
+  
+  find_package(Torch 1.11 REQUIRED)
+  
+  set(TORCHGEN_DIR ${Torch_ROOT}/../../../torchgen)
+  
+  include_directories(BEFORE
+    ${TORCH_INCLUDE_DIRS}
+    ${Python3_INCLUDE_DIRS}
+  )
+  link_directories("${TORCH_INSTALL_PREFIX}/lib")  
+  message(STATUS "libtorch_python CXXFLAGS is ...${TORCH_CXXFLAGS}")
+  message(STATUS "TORCH_LIBRARIES = ${TORCH_LIBRARIES}")
+endif()
+
+# Include jit_ir_common if the jit_ir importer or LTC is enabled,
+# since they both require it.
+if(TORCH_MLIR_ENABLE_JIT_IR_IMPORTER OR TORCH_MLIR_ENABLE_LTC)
+  add_subdirectory(jit_ir_common)
+endif()
+
+# Include LTC.
+if(TORCH_MLIR_ENABLE_LTC)
+  add_subdirectory(ltc)
+endif()
+
+# Include overall PT1 project.
+if(TORCH_MLIR_ENABLE_PROJECT_PT1)
+  add_subdirectory(pt1)
+endif()

projects/jit_ir_common/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(csrc/jit_ir_importer)

projects/jit_ir_common/csrc/jit_ir_importer/CMakeLists.txt

@@ -0,0 +1,27 @@
+# Static library with core functionality.
+# We can't use a shared library here, due to issues with linking on macOS-arm64 (the library itself won't build)
+# For details, see: https://github.com/llvm/torch-mlir/runs/7919012376
+add_library(TorchMLIRJITIRImporter STATIC
+  class_annotator.cpp
+  function_importer.cpp
+  node_importer.cpp
+  ivalue_importer.cpp
+  torch_to_mlir_utils.cpp
+  )
+message(STATUS "Linking TorchMLIRJITImporter with ${TORCH_LIBRARIES}")
+target_link_libraries(TorchMLIRJITIRImporter
+  TorchMLIRAggregateCAPI
+  ${TORCH_LIBRARIES}
+  )
+# Includes are relative to the csrc dir (i.e. #include "jit_ir_importer/...")
+target_include_directories(TorchMLIRJITIRImporter PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/..
+)
+set_target_properties(TorchMLIRJITIRImporter PROPERTIES
+  LIBRARY_OUTPUT_DIRECTORY "${TORCH_MLIR_PYTHON_PACKAGES_DIR}/torch_mlir/torch_mlir/_mlir_libs"
+  OUTPUT_NAME lib_jit_ir_importer
+  PREFIX ""
+  SUFFIX ".a"
+  CXX_VISIBILITY_PRESET "default"
+  COMPILE_FLAGS "${TORCH_CXXFLAGS}"
+  )

projects/jit_ir_common/csrc/jit_ir_importer/ivalue_importer.cpp

@@ -190,7 +190,8 @@ MlirValue IValueImporter::importModule(torch::jit::Module currentModule) {
       torchMlirTorchNnModuleTypeGet(context, toMlirStringRef(moduleTypeName)),
       mlirRegionCreate());
   MlirRegion nnModuleRegion = mlirOperationGetRegion(nnModule, 0);
-  mlirRegionAppendOwnedBlock(nnModuleRegion, mlirBlockCreate(0, nullptr, nullptr));
+  mlirRegionAppendOwnedBlock(nnModuleRegion,
+                             mlirBlockCreate(0, nullptr, nullptr));
   MlirBlock nnModuleBody = mlirRegionGetFirstBlock(nnModuleRegion);
   InserterGuard inserterGuard(importBlock, nnModule);
 
@@ -491,7 +492,8 @@ void IValueImporter::importClassType(c10::ClassType *classType) {
         toMlirNamedAttribute(
             "name", mlirStringAttrGet(
                         context, toMlirStringRef(classAttribute.getName()))),
-        toMlirNamedAttribute("type", mlirTypeAttrGet(getMlirTypeFromTorchType(
+        toMlirNamedAttribute(
+            "type", mlirTypeAttrGet(getMlirTypeFromTorchType(
                         loc, classAttribute.getType(), importOptions))),
         isPrivate);
   }

projects/jit_ir_common/csrc/jit_ir_importer/node_importer.cpp

@@ -41,8 +41,7 @@ public:
       const ImportOptions &importOptions = {});
 
 private:
-  MlirBlock
-  createBlockFor(Block *jitBlock,
+  MlirBlock createBlockFor(Block *jitBlock,
                            c10::optional<c10::ArrayRef<MlirType>> blockArgTypes,
                            const ImportOptions &importOptions = {});
   void mapValue(Value *jitValue, MlirValue value);
@@ -269,9 +268,9 @@ void NodeImporter::importNode(Node *node, MlirBlock appendToBlock,
                                            terminatorOperandTypes,
                                            /*userAllowsRefinement=*/false));
     };
-    mlirRegionAppendOwnedBlock(
-        mlirOperationGetRegion(operation, 0),
-        importBlock(node->blocks()[0], createTerminator, c10::nullopt, importOptions));
+    mlirRegionAppendOwnedBlock(mlirOperationGetRegion(operation, 0),
+                               importBlock(node->blocks()[0], createTerminator,
+                                           c10::nullopt, importOptions));
     return;
   }
 
@@ -290,12 +289,12 @@ void NodeImporter::importNode(Node *node, MlirBlock appendToBlock,
                                            resultTypes,
                                            /*userAllowsRefinement=*/false));
     };
-    mlirRegionAppendOwnedBlock(
-        mlirOperationGetRegion(operation, 0),
-        importBlock(node->blocks()[0], createTerminator, c10::nullopt, importOptions));
-    mlirRegionAppendOwnedBlock(
-        mlirOperationGetRegion(operation, 1),
-        importBlock(node->blocks()[1], createTerminator, c10::nullopt, importOptions));
+    mlirRegionAppendOwnedBlock(mlirOperationGetRegion(operation, 0),
+                               importBlock(node->blocks()[0], createTerminator,
+                                           c10::nullopt, importOptions));
+    mlirRegionAppendOwnedBlock(mlirOperationGetRegion(operation, 1),
+                               importBlock(node->blocks()[1], createTerminator,
+                                           c10::nullopt, importOptions));
     return;
   }
 
@@ -303,8 +302,8 @@ void NodeImporter::importNode(Node *node, MlirBlock appendToBlock,
     auto classType = node->input(0)->type()->cast<c10::ClassType>();
     auto methodName = node->s(c10::attr::name);
     torch::jit::Function *function = classType->findMethod(methodName);
-    MlirType calleeType =
-        getFunctionTypeFromSchema(context, function->getSchema(), importOptions);
+    MlirType calleeType = getFunctionTypeFromSchema(
+        context, function->getSchema(), importOptions);
     std::vector<MlirType> expectedTypes;
     for (int i = 0, e = mlirFunctionTypeGetNumInputs(calleeType); i < e; ++i) {
       expectedTypes.push_back(mlirFunctionTypeGetInput(calleeType, i));
@@ -361,8 +360,8 @@ void NodeImporter::importNode(Node *node, MlirBlock appendToBlock,
   }
 }
 
-MlirBlock NodeImporter::importBlock(
-    Block *jitBlock, CreateTerminatorFn createTerminator,
+MlirBlock
+NodeImporter::importBlock(Block *jitBlock, CreateTerminatorFn createTerminator,
                           c10::optional<c10::ArrayRef<MlirType>> blockArgTypes,
                           const ImportOptions &importOptions) {
   MlirBlock block = createBlockFor(jitBlock, blockArgTypes, importOptions);
@@ -434,5 +433,6 @@ torch_mlir::importBlock(MlirContext context, Block *jitBlock,
                         c10::optional<c10::ArrayRef<MlirType>> blockArgTypes,
                         const ImportOptions &importOptions) {
   NodeImporter importer(context);
-  return importer.importBlock(jitBlock, createTerminator, blockArgTypes, importOptions);
+  return importer.importBlock(jitBlock, createTerminator, blockArgTypes,
+                              importOptions);
 }

projects/jit_ir_common/csrc/jit_ir_importer/node_importer.h

@@ -36,8 +36,8 @@ using CreateTerminatorFn =
 /// are required to be for correctness. The code will internally attempt to
 /// adjust the types to the block argument types.
 /// TODO: Formalize what type conversions are allowed here.
-MlirBlock importBlock(
-    MlirContext context, torch::jit::Block *jitBlock,
+MlirBlock
+importBlock(MlirContext context, torch::jit::Block *jitBlock,
             CreateTerminatorFn createTerminator,
             c10::optional<c10::ArrayRef<MlirType>> blockArgTypes = c10::nullopt,
             const ImportOptions &importOptions = {});

projects/ltc/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(csrc/base_lazy_backend)

projects/ltc/csrc/base_lazy_backend/CMakeLists.txt

@@ -2,30 +2,6 @@
 # Setup PyTorch/LTC
 #-------------------------------------------------------------------------------
 
-include(TorchMLIRPyTorch)
-
-TorchMLIRProbeForPyTorchInstall()
-if(TORCH_MLIR_USE_INSTALLED_PYTORCH)
-  TorchMLIRConfigurePyTorch()
-else()
-  # Assume it is a sibling to the overall project.
-  set(Torch_DIR "${PROJECT_SOURCE_DIR}/../libtorch/share/cmake/Torch")
-  message(STATUS "Attempting to locate libtorch as a sibling to the project: ${Torch_DIR}")
-endif()
-
-find_package(Torch 1.11 REQUIRED)
-
-set(TORCHGEN_DIR ${Torch_ROOT}/../../../torchgen)
-
-include_directories(BEFORE
-  ${TORCH_INCLUDE_DIRS}
-  ${CMAKE_CURRENT_SOURCE_DIR}
-  ${CMAKE_CURRENT_BINARY_DIR}
-  ${Python3_INCLUDE_DIRS}
-  ${PROJECT_SOURCE_DIR}/projects/pt1/python
-)
-link_directories("${TORCH_INSTALL_PREFIX}/lib")
-
 set(LTC_GENERATED
   generated/LazyNativeFunctions.cpp
   generated/RegisterLazy.cpp
@@ -80,6 +56,12 @@ add_library(torch_mlir_ltc_backend SHARED
   utils/tensor_utils.cpp
 )
 target_compile_features(torch_mlir_ltc_backend PRIVATE cxx_std_17)
+# Includes are resolved relative to csrc (i.e. #include "base_lazy_backend/...").
+# Add both the source and generated include directories.
+target_include_directories(torch_mlir_ltc_backend PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/..
+  ${CMAKE_CURRENT_BINARY_DIR}/..
+)
 
 add_dependencies(torch_mlir_ltc_backend
   TorchMLIRJITIRImporter
@@ -112,13 +94,13 @@ add_custom_command(
 add_custom_command(
         TARGET torch_mlir_ltc_backend POST_BUILD
         COMMAND cp
-                ${PROJECT_SOURCE_DIR}/projects/pt1/python/torch_mlir/csrc/base_lazy_backend/*.h
+                ${PROJECT_SOURCE_DIR}/projects/ltc/csrc/base_lazy_backend/*.h
                 ${TORCH_MLIR_PYTHON_PACKAGES_DIR}/torch_mlir/torch_mlir/base_lazy_backend/)
 
 add_custom_command(
         TARGET torch_mlir_ltc_backend POST_BUILD
         COMMAND cp
-                ${PROJECT_SOURCE_DIR}/projects/pt1/python/torch_mlir/csrc/base_lazy_backend/generated/*.h
+                ${PROJECT_SOURCE_DIR}/projects/ltc/csrc/base_lazy_backend/generated/*.h
                 ${TORCH_MLIR_PYTHON_PACKAGES_DIR}/torch_mlir/torch_mlir/base_lazy_backend/generated/)
 
 add_custom_command(
@@ -129,7 +111,7 @@ add_custom_command(
 add_custom_command(
         TARGET torch_mlir_ltc_backend POST_BUILD
         COMMAND cp
-                ${PROJECT_SOURCE_DIR}/projects/pt1/python/torch_mlir/csrc/base_lazy_backend/ops/*.h
+                ${PROJECT_SOURCE_DIR}/projects/ltc/csrc/base_lazy_backend/ops/*.h
                 ${TORCH_MLIR_PYTHON_PACKAGES_DIR}/torch_mlir/torch_mlir/base_lazy_backend/ops/)
 
 add_custom_command(
@@ -140,5 +122,5 @@ add_custom_command(
 add_custom_command(
         TARGET torch_mlir_ltc_backend POST_BUILD
         COMMAND cp
-                ${PROJECT_SOURCE_DIR}/projects/pt1/python/torch_mlir/csrc/base_lazy_backend/utils/*.h
+                ${PROJECT_SOURCE_DIR}/projects/ltc/csrc/base_lazy_backend/utils/*.h
                 ${TORCH_MLIR_PYTHON_PACKAGES_DIR}/torch_mlir/torch_mlir/base_lazy_backend/utils/)

projects/ltc/csrc/base_lazy_backend/mlir_lowering_context.cpp

@@ -21,8 +21,8 @@
 #include "mlir-c/IR.h"
 #include "mlir-c/Pass.h"
 
-#include "../../dialects/torch/importer/jit_ir/csrc/function_importer.h"
 #include "backend_impl.h"
+#include "jit_ir_importer/function_importer.h"
 #include "mlir_lowering_context.h"
 #include "mlir_node.h"
 #include "utils/debug.h"

projects/pt1/examples/torchscript_resnet_inference.ipynb

@@ -92,8 +92,8 @@
     "import torchvision\n",
     "\n",
     "import torch_mlir\n",
-    "from torch_mlir.dialects.torch.importer.jit_ir import ClassAnnotator, ModuleBuilder\n",
-    "from torch_mlir.dialects.torch.importer.jit_ir.torchscript_annotations import extract_annotations\n",
+    "from torch_mlir.jit_ir_importer import ClassAnnotator, ModuleBuilder\n",
+    "from torch_mlir.jit_ir_importer.torchscript_annotations import extract_annotations\n",
     "\n",
     "from torch_mlir.passmanager import PassManager\n",
     "from torch_mlir_e2e_test.linalg_on_tensors_backends.refbackend import RefBackendLinalgOnTensorsBackend"

projects/pt1/python/CMakeLists.txt

@@ -1,5 +1,3 @@
-include(AddMLIRPython)
-
 # Disables generation of "version soname" (i.e. libFoo.so.<version>), which
 # causes pure duplication as part of Python wheels.
 set(CMAKE_PLATFORM_NO_VERSIONED_SONAME ON)
@@ -90,9 +88,6 @@ declare_mlir_python_extension(TorchMLIRPythonExtensions.Main
 # Lazy Tensor Core
 ################################################################################
 
-if(TORCH_MLIR_ENABLE_LTC)
-  add_subdirectory(torch_mlir/csrc/base_lazy_backend)
-endif()
 # Reference backend has a separate check for TORCH_MLIR_ENABLE_LTC, since it
 # generates a dummy Python library when disabled.
 if(NOT TORCH_MLIR_ENABLE_ONLY_MLIR_PYTHON_BINDINGS)
@@ -104,7 +99,8 @@ endif()
 ################################################################################
 
 if(TORCH_MLIR_ENABLE_JIT_IR_IMPORTER)
-  add_subdirectory(torch_mlir/dialects/torch/importer/jit_ir)
+  add_subdirectory(torch_mlir/jit_ir_importer)
+  add_subdirectory(torch_mlir/csrc/jit_ir_importer)
   add_subdirectory(torch_mlir_e2e_test)
 endif()
 

projects/pt1/python/test/annotations-sugar.py

@@ -8,8 +8,8 @@
 import torch
 
 from torch_mlir_e2e_test.annotations import annotate_args, export
-from torch_mlir.dialects.torch.importer.jit_ir import ClassAnnotator
-from torch_mlir.dialects.torch.importer.jit_ir.torchscript_annotations import extract_annotations
+from torch_mlir.jit_ir_importer import ClassAnnotator
+from torch_mlir.jit_ir_importer.torchscript_annotations import extract_annotations
 
 class MmModule(torch.nn.Module):
     def __init__(self):

projects/pt1/python/torch_mlir/__init__.py

@@ -17,8 +17,8 @@ from torch_mlir.dynamo import _get_decomposition_table
 from torch.fx.experimental.proxy_tensor import make_fx
 
 from .compiler_utils import run_pipeline_with_repro_report
-from torch_mlir.dialects.torch.importer.jit_ir import ClassAnnotator, ImportOptions, ModuleBuilder
-from torch_mlir.dialects.torch.importer.jit_ir.build_tools.library_generator import generate_library
+from torch_mlir.jit_ir_importer import ClassAnnotator, ImportOptions, ModuleBuilder
+from torch_mlir.jit_ir_importer.build_tools.library_generator import generate_library
 
 
 class OutputType(Enum):

projects/pt1/python/torch_mlir/csrc/jit_ir_importer/CMakeLists.txt

@@ -1,39 +1,3 @@
-# Sharp edge: Torch extensions need to use the same pybind11 that torch
-# was compiled with, or else there will be issues in cross module exception
-# handling (which will abort instead of raise). We circumvent the possibility
-# by forcing the torch directories first.
-include_directories(BEFORE
-  ${TORCH_INCLUDE_DIRS}
-  ${CMAKE_CURRENT_SOURCE_DIR}
-  ${CMAKE_CURRENT_BINARY_DIR}
-  ${Python3_INCLUDE_DIRS}
-  )
-link_directories("${TORCH_INSTALL_PREFIX}/lib")
-
-# Static library with core functionality.
-# We can't use a shared library here, due to issues with linking on macOS-arm64 (the library itself won't build)
-# For details, see: https://github.com/llvm/torch-mlir/runs/7919012376
-add_library(TorchMLIRJITIRImporter STATIC
-  class_annotator.cpp
-  function_importer.cpp
-  node_importer.cpp
-  ivalue_importer.cpp
-  torch_to_mlir_utils.cpp
-  )
-target_link_libraries(TorchMLIRJITIRImporter
-  TorchMLIRAggregateCAPI
-  ${TORCH_LIBRARIES}
-  )
-message(STATUS "TORCH_CXXFLAGS=${TORCH_CXXFLAGS}")
-set_target_properties(TorchMLIRJITIRImporter PROPERTIES
-  LIBRARY_OUTPUT_DIRECTORY "${TORCH_MLIR_PYTHON_PACKAGES_DIR}/torch_mlir/torch_mlir/_mlir_libs"
-  OUTPUT_NAME lib_jit_ir_importer
-  PREFIX ""
-  SUFFIX ".a"
-  CXX_VISIBILITY_PRESET "default"
-  COMPILE_FLAGS "${TORCH_CXXFLAGS}"
-  )
-
 # Separate Pybind MODULE due to issues with a SHARED library.
 # https://github.com/llvm/torch-mlir/issues/1154
 add_library(TorchMLIRJITIRImporterPybind MODULE
@@ -62,7 +26,6 @@ if(Python3_LIBRARIES)
   )
 endif()
 
-message(STATUS "TORCH_CXXFLAGS=${TORCH_CXXFLAGS}")
 set_target_properties(TorchMLIRJITIRImporterPybind PROPERTIES
   LIBRARY_OUTPUT_DIRECTORY "${TORCH_MLIR_PYTHON_PACKAGES_DIR}/torch_mlir/torch_mlir/_mlir_libs"
   OUTPUT_NAME _jit_ir_importer

projects/pt1/python/torch_mlir/csrc/jit_ir_importer/class_annotator_pybind.cpp

@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "class_annotator_pybind.h"
-#include "class_annotator.h"
+#include "jit_ir_importer/class_annotator.h"
 
 #include <torch/csrc/Dtype.h>
 #include <torch/csrc/utils/pybind.h>
@@ -53,11 +53,12 @@ void torch_mlir::initClassAnnotatorBindings(py::module &m) {
       .def(py::init<>())
       .def("exportPath", &ClassAnnotator::exportPath)
       .def("exportNone", &ClassAnnotator::exportNone)
-      .def("annotateArgs",
+      .def(
+          "annotateArgs",
           [&](ClassAnnotator& cls_annotator, c10::ClassType& rootClassType,
               std::vector<std::string> path, py::list argAnnotations) {
-             cls_annotator.annotateArgs(rootClassType, path,
-                                        getArgAnnotations(argAnnotations));
+            cls_annotator.annotateArgs(
+                rootClassType, path, getArgAnnotations(argAnnotations));
           })
       .def("__repr__", &ClassAnnotator::toString);
 }

projects/pt1/python/torch_mlir/csrc/jit_ir_importer/import_options_pybind.cpp

@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "import_options_pybind.h"
-#include "import_options.h"
+#include "jit_ir_importer/import_options.h"
 
 namespace py = pybind11;
 
@@ -17,8 +17,10 @@ using namespace torch_mlir;
 void torch_mlir::initImportOptionsBindings(py::module& m) {
   py::class_<ImportOptions>(m, "ImportOptions")
       .def(py::init<>())
-      .def_readwrite("assumeTensorsHaveValueSemantics",
+      .def_readwrite(
+          "assumeTensorsHaveValueSemantics",
           &ImportOptions::assumeTensorsHaveValueSemantics)
-      .def_readwrite("ignoreExistingTensorShapesAndDtypes",
+      .def_readwrite(
+          "ignoreExistingTensorShapesAndDtypes",
           &ImportOptions::ignoreExistingTensorShapesAndDtypes);
 }

projects/pt1/python/torch_mlir/csrc/jit_ir_importer/module_builder.cpp

@@ -9,9 +9,9 @@
 
 #include "module_builder.h"
 
-#include "function_importer.h"
-#include "ivalue_importer.h"
-#include "mlir_utils.h"
+#include "jit_ir_importer/function_importer.h"
+#include "jit_ir_importer/ivalue_importer.h"
+#include "jit_ir_importer/mlir_utils.h"
 
 #include "mlir-c/Bindings/Python/Interop.h"
 #include "mlir-c/BuiltinAttributes.h"
@@ -84,8 +84,8 @@ static void printDiagnostic(MlirDiagnostic diagnostic) {
   mlirDiagnosticPrint(diagnostic, stringCallback, static_cast<void*>(&ss));
   // Use pybind11's print:
   // https://pybind11.readthedocs.io/en/stable/advanced/pycpp/utilities.html
-  py::print(ss.str(),
-            py::arg("file") = py::module_::import("sys").attr("stderr"));
+  py::print(
+      ss.str(), py::arg("file") = py::module_::import("sys").attr("stderr"));
 }
 
 // Register a diagnostic handler that will redirect output to `sys.stderr`
@@ -123,23 +123,23 @@ ModuleBuilder::ModuleBuilder(pybind11::object contextObj)
   terminator = mlirBlockGetFirstOperation(getBodyBlock());
 }
 
-torch::jit::StrongFunctionPtr
-ModuleBuilder::importFunction(torch::jit::StrongFunctionPtr function,
-                              py::object maybeImportOptions) {
+torch::jit::StrongFunctionPtr ModuleBuilder::importFunction(
+    torch::jit::StrongFunctionPtr function, py::object maybeImportOptions) {
   ImportOptions importOptions;
   if (!maybeImportOptions.is_none()) {
     importOptions = py::cast<ImportOptions>(maybeImportOptions);
   }
   MlirBlock block = getBodyBlock();
   MlirOperation terminator = this->terminator;
-  MlirOperation func = importJitFunctionAsFuncOp(context, function.function_,
+  MlirOperation func = importJitFunctionAsFuncOp(
+      context, function.function_,
       [](int) -> MlirAttribute { return {nullptr}; }, importOptions);
   mlirBlockInsertOwnedOperationBefore(block, terminator, func);
   return function;
 }
 
-void ModuleBuilder::importModule(torch::jit::Module jitModule,
-                                 py::object maybeClassAnnotator,
+void ModuleBuilder::importModule(
+    torch::jit::Module jitModule, py::object maybeClassAnnotator,
     py::object maybeImportOptions) {
   ClassAnnotator dummyAnnotator;
   ClassAnnotator* classAnnotator = &dummyAnnotator;
@@ -171,10 +171,11 @@ void ModuleBuilder::importModule(torch::jit::Module jitModule,
   auto& name = *jitModule.type()->name();
   auto debugModuleNameAttr = mlirStringAttrGet(
       context, toMlirStringRef(name.atoms()[name.atoms().size() - 1]));
-  mlirOperationSetAttributeByName(mlirModuleGetOperation(module),
-                                  toMlirStringRef("torch.debug_module_name"),
-                                  debugModuleNameAttr);
-  importIValue(jitModule._ivalue(), mlirModuleGetBody(module),
+  mlirOperationSetAttributeByName(
+      mlirModuleGetOperation(module),
+      toMlirStringRef("torch.debug_module_name"), debugModuleNameAttr);
+  importIValue(
+      jitModule._ivalue(), mlirModuleGetBody(module),
       mlirModuleGetContext(module), *classAnnotator, importOptions);
 }
 
@@ -188,9 +189,11 @@ void ModuleBuilder::bind(py::module &m) {
       .def(py::init<py::object>(), py::arg("context") = py::none())
       .def_property_readonly("context", &ModuleBuilder::getContextObj)
       .def_property_readonly("module", &ModuleBuilder::getModuleObj)
-      .def("import_function", &ModuleBuilder::importFunction, py::arg("function"),
-           py::arg("importOptions") = py::none())
-      .def("import_module", &ModuleBuilder::importModule, py::arg("module"),
+      .def(
+          "import_function", &ModuleBuilder::importFunction,
+          py::arg("function"), py::arg("importOptions") = py::none())
+      .def(
+          "import_module", &ModuleBuilder::importModule, py::arg("module"),
           py::arg("classAnnotator") = py::none(),
           py::arg("importOptions") = py::none());
 }

projects/pt1/python/torch_mlir/csrc/jit_ir_importer/module_builder.h

@@ -10,7 +10,7 @@
 #ifndef TORCHMLIRJITIRIMPORTER_CSRC_BUILDER_H
 #define TORCHMLIRJITIRIMPORTER_CSRC_BUILDER_H
 
-#include "class_annotator.h"
+#include "jit_ir_importer/class_annotator.h"
 
 #include "mlir-c/IR.h"
 
@@ -38,15 +38,14 @@ public:
   // torch.jit.ScriptFunction is the C++ type torch::jit::StrongFunctionPtr.
   // Just a bit of naming cruft.
   // Returns the same function, making it suitable as a nested decorator.
-  torch::jit::StrongFunctionPtr
-  importFunction(torch::jit::StrongFunctionPtr function,
-                 py::object maybeImportOptions);
+  torch::jit::StrongFunctionPtr importFunction(
+      torch::jit::StrongFunctionPtr function, py::object maybeImportOptions);
 
   // Imports a torch::jit::Module into the current module, using the
   // annotations, if not none, provided in `maybeClassAnnotator` which should be
   // a ClassAnnotator.
-  void importModule(torch::jit::Module jitModule,
-                    py::object maybeClassAnnotator,
+  void importModule(
+      torch::jit::Module jitModule, py::object maybeClassAnnotator,
       py::object maybeImportOptions);
 
 private:

projects/pt1/python/torch_mlir/csrc/reference_lazy_backend/CMakeLists.txt

@@ -1,28 +1,3 @@
-###########################################################################
-# Setup PyTorch
-###########################################################################
-
-include(TorchMLIRPyTorch)
-
-TorchMLIRProbeForPyTorchInstall()
-if(TORCH_MLIR_USE_INSTALLED_PYTORCH)
-  TorchMLIRConfigurePyTorch()
-else()
-  # Assume it is a sibling to the overall project.
-  set(Torch_DIR "${PROJECT_SOURCE_DIR}/../libtorch/share/cmake/Torch")
-  message(STATUS "Attempting to locate libtorch as a sibling to the project: ${Torch_DIR}")
-endif()
-
-find_package(Torch 1.11 REQUIRED)
-
-###########################################################################
-# Setup Python development
-###########################################################################
-
-list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/externals/llvm-project/mlir/cmake/modules")
-include(MLIRDetectPythonEnv)
-mlir_configure_python_dev_packages()
-
 ###########################################################################
 # Library definition
 ###########################################################################

projects/pt1/python/torch_mlir/csrc/reference_lazy_backend/backend_impl.cpp

@@ -14,12 +14,12 @@
 #include <torch/csrc/lazy/core/lazy_graph_executor.h>
 #include <torch/csrc/lazy/core/shape.h>
 
-#include <torch_mlir/csrc/base_lazy_backend/backend_impl.h>
-#include <torch_mlir/csrc/base_lazy_backend/generated/LazyNativeFunctions.h>
-#include <torch_mlir/csrc/base_lazy_backend/mlir_lowering_context.h>
-#include <torch_mlir/csrc/base_lazy_backend/utils/debug.h>
-#include <torch_mlir/csrc/base_lazy_backend/utils/exception.h>
-#include <torch_mlir/csrc/base_lazy_backend/utils/string_utils.h>
+#include <base_lazy_backend/backend_impl.h>
+#include <base_lazy_backend/generated/LazyNativeFunctions.h>
+#include <base_lazy_backend/mlir_lowering_context.h>
+#include <base_lazy_backend/utils/debug.h>
+#include <base_lazy_backend/utils/exception.h>
+#include <base_lazy_backend/utils/string_utils.h>
 
 #include "backend_impl.h"
 

projects/pt1/python/torch_mlir/csrc/reference_lazy_backend/reference_lazy_backend_pybind.cpp

@@ -11,10 +11,10 @@
 #include "torch/csrc/lazy/core/config.h"
 #include "torch/csrc/lazy/backend/backend_interface.h"
 
-#include <torch_mlir/csrc/base_lazy_backend/mlir_lowering_context.h>
-#include <torch_mlir/csrc/base_lazy_backend/utils/string_utils.h>
-#include <torch_mlir/csrc/base_lazy_backend/utils/sys_utils.h>
-#include <torch_mlir/csrc/base_lazy_backend/utils/tensor_utils.h>
+#include <base_lazy_backend/mlir_lowering_context.h>
+#include <base_lazy_backend/utils/string_utils.h>
+#include <base_lazy_backend/utils/sys_utils.h>
+#include <base_lazy_backend/utils/tensor_utils.h>
 
 #include <exception>
 #include <iostream>

projects/pt1/python/torch_mlir/dialects/torch/importer/jit_ir/CMakeLists.txt

@@ -1,32 +0,0 @@
-#-------------------------------------------------------------------------------
-# Setup PyTorch
-#-------------------------------------------------------------------------------
-
-include(TorchMLIRPyTorch)
-
-TorchMLIRProbeForPyTorchInstall()
-if(TORCH_MLIR_USE_INSTALLED_PYTORCH)
-  TorchMLIRConfigurePyTorch()
-else()
-  # Assume it is a sibling to the overall project.
-  set(Torch_DIR "${PROJECT_SOURCE_DIR}/../libtorch/share/cmake/Torch")
-  message(STATUS "Attempting to locate libtorch as a sibling to the project: ${Torch_DIR}")
-endif()
-
-find_package(Torch 1.11 REQUIRED)
-
-message(STATUS "libtorch_python CXXFLAGS is ...${TORCH_CXXFLAGS}")
-#-------------------------------------------------------------------------------
-# Subdirectories
-#-------------------------------------------------------------------------------
-
-add_subdirectory(csrc)
-
-## Declare the sources of the Python module.
-
-declare_mlir_python_sources(TorchMLIRPythonSources.JitIRImporter
-  ROOT_DIR "${TORCH_MLIR_PYTHON_ROOT_DIR}"
-  ADD_TO_PARENT TorchMLIRPythonSources
-  SOURCES_GLOB
-    dialects/torch/importer/jit_ir/*.py
-)

projects/pt1/python/torch_mlir/jit_ir_importer/CMakeLists.txt

@@ -0,0 +1,12 @@
+#-------------------------------------------------------------------------------
+# Subdirectories
+#-------------------------------------------------------------------------------
+
+## Declare the sources of the Python module.
+
+declare_mlir_python_sources(TorchMLIRPythonSources.JitIRImporter
+  ROOT_DIR "${TORCH_MLIR_PYTHON_ROOT_DIR}"
+  ADD_TO_PARENT TorchMLIRPythonSources
+  SOURCES_GLOB
+    jit_ir_importer/*.py
+)

projects/pt1/python/torch_mlir/jit_ir_importer/__init__.py

@@ -11,8 +11,11 @@ import torch
 
 # Our native extension is not self-contained. It references libraries which
 # must come in via the above first.
-from ....._mlir_libs._jit_ir_importer import *
+from .._mlir_libs._jit_ir_importer import *
 
+# Ensure that the torch dialect has been loaded as it registers passes
+# and other things the jit_ir_importer needs.
+from ..dialects import torch as _unused_torch_dialect
 
 __all__ = [
   "debug_trace_to_stderr",

projects/pt1/python/torch_mlir/jit_ir_importer/build_tools/library_generator.py

@@ -10,7 +10,7 @@ import codecs
 
 import torch
 
-from torch_mlir.dialects.torch.importer.jit_ir import ModuleBuilder
+from torch_mlir.jit_ir_importer import ModuleBuilder
 from torch_mlir.passmanager import PassManager
 
 from .registry import Registry

projects/pt1/python/torch_mlir/jit_ir_importer/torchscript_annotations.py

@@ -8,7 +8,7 @@ from typing import List, Optional, Tuple
 import torch
 
 import torch_mlir
-from torch_mlir.dialects.torch.importer.jit_ir import ClassAnnotator
+from torch_mlir.jit_ir_importer import ClassAnnotator
 
 # Decorators
 

projects/pt1/test/CMakeLists.txt

@@ -23,4 +23,4 @@ add_lit_testsuite(check-torch-mlir-pt1 "Running the torch-mlir PT1 regression te
         )
 set_target_properties(check-torch-mlir-pt1 PROPERTIES FOLDER "Tests")
 
-add_lit_testsuites(TORCH_MLIR ${CMAKE_CURRENT_SOURCE_DIR} DEPENDS ${TORCH_MLIR_TEST_DEPENDS})
+add_lit_testsuites(TORCH_MLIR_PT1 ${CMAKE_CURRENT_SOURCE_DIR} DEPENDS ${TORCH_MLIR_TEST_DEPENDS})

projects/pt1/test/lit.cfg.py

@@ -19,7 +19,7 @@ from lit.llvm.subst import FindTool
 # Configuration file for the 'lit' test runner.
 
 # name: The name of this test suite.
-config.name = 'TORCH_MLIR'
+config.name = 'TORCH_MLIR_PT1'
 
 config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)