NXP Backend: Add integration test with CifarNet model

CifarNet requires input quantization for full
INT8 model quantization. This test verifies that
input node is quantized.

Author: skywall

backends/nxp/run_unittests.sh

@@ -11,4 +11,4 @@ EXECUTORCH_DIR=$(dirname $(dirname $SCRIPT_DIR))
 cd $EXECUTORCH_DIR
 
 # '-c /dev/null' is used to ignore root level pytest.ini.
-PYTHONPATH=`cd ..; pwd` pytest -c /dev/null backends/nxp/tests/
+pytest -c /dev/null backends/nxp/tests/

backends/nxp/tests/test_integration.py

@@ -0,0 +1,50 @@
+# Copyright 2024 NXP
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+import executorch.extension.pybindings.portable_lib
+import executorch.kernels.quantized  # noqa F401
+
+from executorch.backends.nxp.tests.executorch_pipeline import (
+    to_quantized_executorch_program,
+)
+from executorch.backends.nxp.tests.models import ConvFCSoftmaxModule
+from executorch.devtools.backend_debug import get_delegation_info
+from executorch.examples.nxp.experimental.cifar_net.cifar_net import CifarNet
+
+
+def test_conv_fc_softmax__to_executorch_program():
+    model = ConvFCSoftmaxModule()
+    input_shape = (1, 4, 5, 5)
+
+    exec_prog = to_quantized_executorch_program(model, input_shape)
+
+    program = exec_prog.exported_program()
+    assert (
+        program.graph_module.lowered_module_0
+    ), "There is no lowered module with Neutron microcode."
+
+    delegation_info = get_delegation_info(program.graph_module)
+    assert delegation_info.num_delegated_subgraphs == 1
+    assert delegation_info.num_non_delegated_nodes == 11
+    assert delegation_info.num_delegated_nodes == 13
+
+    for node in program.graph.nodes:
+        # Make sure Convolution and AddMM are delegated
+        assert "convolution" not in node.name
+        assert "addmm" not in node.name
+
+
+def test_cifarnet():
+    model = CifarNet().get_eager_model().eval()
+    input_shape = (1, 3, 32, 32)
+    exec_prog = to_quantized_executorch_program(model, input_shape)
+
+    delegation_info = get_delegation_info(exec_prog.exported_program().graph_module)
+    assert delegation_info.num_delegated_subgraphs == 1
+    assert delegation_info.num_non_delegated_nodes == 17
+    assert delegation_info.num_delegated_nodes == 42
+
+    nodes = list(exec_prog.exported_program().graph.nodes)
+    assert nodes[2].name == "quantized_decomposed_quantize_per_tensor_default"