Update base for Update on "Build optimized operators lib with -fexceptions"

It should be permissible for this library to use exceptions, since it is not required to supported embedded systems.

TODO: presumably we need to manage rollout of the torchgen patch?

Differential Revision: [D67904052](https://our.internmc.facebook.com/intern/diff/D67904052/)

[ghstack-poisoned]

Author: Github Executorch

.ci/docker/ci_commit_pins/pytorch.txt

@@ -1 +1 @@
-2ea4b56ec872424e486c4fe2d55da061067a2ed3
+0a94bb432ed75cc2d950d81b2921363218a7e459

.github/workflows/apple-perf.yml

@@ -410,7 +410,7 @@ jobs:
     runs-on: linux.2xlarge
     steps:
       - name: Download the apps from GitHub
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           # The name here needs to match the name of the upload-artifact parameter
           name: ios-apps

.github/workflows/apple.yml

@@ -53,7 +53,7 @@ jobs:
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
       timeout: 90
       secrets-env: BUILD_CERTIFICATE_BASE64 EXECUTORCH_DEMO_BUILD_PROVISION_PROFILE_BASE64 KEYCHAIN_PASSWORD
-      upload-artifact: ios-apps
+      upload-artifact: ios-demo-app
       script: |
         set -eux
 
@@ -83,10 +83,10 @@ jobs:
     runs-on: linux.2xlarge
     steps:
       - name: Download the artifacts from GitHub
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           # The name here needs to match the name of the upload-artifact parameter
-          name: ios-apps
+          name: ios-demo-app
           path: ${{ runner.temp }}/artifacts/
 
       - name: Verify the artifacts
@@ -216,7 +216,7 @@ jobs:
           role-to-assume: arn:aws:iam::308535385114:role/gha_executorch_upload-frameworks-ios
           aws-region: us-east-1
       - name: Download the artifact
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           # NB: The name here needs to match the upload-artifact name from build-frameworks-ios job
           name: executorch-frameworks-ios
@@ -291,7 +291,7 @@ jobs:
       python-version: '3.11'
       submodules: 'true'
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
-      upload-artifact: ios-apps
+      upload-artifact: ios-benchmark-app
       secrets-env: BUILD_CERTIFICATE_BASE64 EXECUTORCH_BENCHMARK_BUILD_PROVISION_PROFILE_BASE64 KEYCHAIN_PASSWORD
       timeout: 90
       script: |

.gitmodules

@@ -66,7 +66,7 @@
 	url = https://github.com/pybind/pybind11.git
 [submodule "backends/cadence/fusion_g3/third-party/nnlib/nnlib-FusionG3"]
 	path = backends/cadence/fusion_g3/third-party/nnlib/nnlib-FusionG3
-	url = https://github.com/foss-xtensa/nnlib-FusionG3/
+	url = https://github.com/foss-xtensa/nnlib-FusionG3.git
 [submodule "third-party/ao"]
 	path = third-party/ao
 	url = https://github.com/pytorch/ao.git

backends/apple/mps/mps_preprocess.py

@@ -32,6 +32,9 @@
     CompileSpec,
     PreprocessResult,
 )
+
+from executorch.exir.passes.memory_format_ops_pass import DimOrderOpsRevertPass
+from executorch.exir.program._program import _transform
 from torch.export.exported_program import ExportedProgram
 
 FORMAT = "[%(levelname)s %(asctime)s %(filename)s:%(lineno)s] %(message)s"
@@ -83,6 +86,9 @@ def preprocess(
         #    FlatBuffer graph, process the `output` nodes and add their id to
         #    the `output_ids` array in the schema.
 
+        # TODO: Remove this once we have a better support for the dim-order ops.
+        edge_program = _transform(edge_program, DimOrderOpsRevertPass())
+
         mps_graph = MPSGraph(
             version="0",
             mps_nodes=[],

backends/apple/mps/operators/constant_ops.py

@@ -79,6 +79,25 @@ def define_node(
         )
 
 
+@register_node_visitor
+class ToDimOrderEmptyVisitor(NodeVisitor):
+    target = ["dim_order_ops._empty_dim_order.default"]
+
+    def __init__(self, *args) -> None:
+        super().__init__(*args)
+
+    def define_node(
+        self,
+        node: torch.fx.Node,
+        mps_graph: MPSGraph,
+    ) -> None:
+        # We should never get here, because DimOrderOpsRevertPass replaces this with an aten.empty.memory_format op
+        # But if we do, we can't handle it ATM, so raise an exception
+        raise NotImplementedError(
+            "dim_order_ops._empty_dim_order.default is not supported yet"
+        )
+
+
 @register_node_visitor
 class FullLikeVisitor(NodeVisitor):
     target = "aten.full_like.default"

backends/apple/mps/operators/op_clone.py

@@ -33,3 +33,22 @@ def define_node(
                 )
         input_id = self.define_tensor(get_input_node(node, 0), mps_graph)
         self.tensor_to_id[node] = input_id
+
+
+@register_node_visitor
+class ToDimOrderCopyVisitor(NodeVisitor):
+    target = ["dim_order_ops._to_dim_order_copy.default"]
+
+    def __init__(self, *args) -> None:
+        super().__init__(*args)
+
+    def define_node(
+        self,
+        node: torch.fx.Node,
+        mps_graph: MPSGraph,
+    ) -> None:
+        # We should never get here, because DimOrderOpsRevertPass replaces this with an aten._to_copy op
+        # But if we do, we can't handle it ATM, so raise an exception
+        raise NotImplementedError(
+            "dim_order_ops._to_dim_order_copy.default is not supported yet"
+        )

backends/apple/mps/test/test_mps.py

@@ -1829,6 +1829,21 @@ def forward(self, x):
             Clone(), model_inputs, func_name=inspect.stack()[0].function[5:]
         )
 
+    def test_mps_backend_to_copy(self):
+        class Copy(torch.nn.Module):
+            def forward(self, x):
+                return (
+                    torch.ops.aten._to_copy.default(
+                        x + 2, memory_format=torch.contiguous_format
+                    )
+                    + x
+                )
+
+        model_inputs = (torch.randn(1, 3, 3),)
+        self.lower_and_test_with_partitioner(
+            Copy(), model_inputs, func_name=inspect.stack()[0].function[5:]
+        )
+
     def test_mps_backend_floor(self):
         class Floor(torch.nn.Module):
             def forward(self, x):

backends/apple/mps/test/test_mps_utils.py

@@ -26,10 +26,7 @@
 
 # Config for Capturing the weights, will be moved in the future
 
-# TODO(T182928844): Delegate dim order op to backend.
-_EDGE_COMPILE_CONFIG = exir.EdgeCompileConfig(
-    _check_ir_validity=False, _skip_dim_order=True
-)
+_EDGE_COMPILE_CONFIG = exir.EdgeCompileConfig(_check_ir_validity=False)
 
 
 class ansi_colors:
@@ -219,7 +216,6 @@ def lower_module_and_test_output(
             dynamic_shapes=dynamic_shapes,
             edge_compile_config=EdgeCompileConfig(
                 _check_ir_validity=False,
-                _skip_dim_order=True,  # TODO(T182928844): Delegate dim order op to backend.
             ),
         )
 
@@ -250,7 +246,6 @@ def lower_module_and_test_output(
                 export(delegated_program, sample_inputs, strict=True),
                 compile_config=exir.EdgeCompileConfig(
                     _check_ir_validity=False,
-                    _skip_dim_order=True,  # TODO(T182928844): Delegate dim order op to backend.
                 ),
             ).to_executorch(
                 config=ExecutorchBackendConfig(extract_delegate_segments=False)

backends/arm/README.md

@@ -122,6 +122,28 @@ The you can run the tests with
 pytest -c /dev/null -v -n auto backends/arm/test --arm_quantize_io --arm_run_corstoneFVP
 ```
 
+### Code coverage
+
+To get code coverage:
+
+```
+coverage run --source=<SRC> --rcfile=backends/arm/test/.coveragerc -m pytest \
+--config-file=/dev/null backends/arm/test/
+```
+
+All files in `SRC` and its child directories will be analysed for code coverage,
+unless explicitly exluded in the .coveragerc file. If using venv this might be
+under `env/lib/python<VERSION_NUMBER>/site-packages/executorch/`. To get the
+absolute path, run:
+
+```
+python -c "import executorch; print(executorch.__path__)"
+```
+
+This contains a list of paths where the source directory is located. Pick the
+one that is located in `env/lib`. If that does not work try the others. Add
+`backends/arm` to the path in `--source` to only get code coverage for the Arm
+backend.
 
 ### A note on unit tests