add script to generate add.pte (#6760)

* Update

[ghstack-poisoned]

* Update

[ghstack-poisoned]

Author: davidlin54

extension/android_test/add_model.py

@@ -0,0 +1,26 @@
+import torch
+from executorch.exir import to_edge
+from torch.export import export
+
+
+# Start with a PyTorch model that adds two input tensors (matrices)
+class Add(torch.nn.Module):
+    def __init__(self):
+        super(Add, self).__init__()
+
+    def forward(self, x: torch.Tensor, y: torch.Tensor):
+        return x + y
+
+
+# 1. torch.export: Defines the program with the ATen operator set.
+aten_dialect = export(Add(), (torch.ones(1), torch.ones(1)))
+
+# 2. to_edge: Make optimizations for Edge devices
+edge_program = to_edge(aten_dialect)
+
+# 3. to_executorch: Convert the graph to an ExecuTorch program
+executorch_program = edge_program.to_executorch()
+
+# 4. Save the compiled .pte program
+with open("add.pte", "wb") as file:
+    file.write(executorch_program.buffer)

extension/android_test/setup.sh

@@ -56,4 +56,6 @@ source ".ci/scripts/test_llama.sh" stories110M cmake fp16 portable ${BUILD_AAR_D
 popd
 mkdir -p "$BASEDIR"/src/libs
 cp "$BUILD_AAR_DIR/executorch.aar" "$BASEDIR"/src/libs/executorch.aar
+python add_model.py
+mv "add.pte" "$BASEDIR"/src/androidTest/resources/add.pte
 unzip -o "$BUILD_AAR_DIR"/model.zip -d "$BASEDIR"/src/androidTest/resources