NXP backend: Rename post-processing pass directory. (#16508)

### Summary
Rename directory containing NeutronIR post-processing passes to better
reflect its contents.

### Test plan
N/A


cc @robert-kalmar

Author: MartinPavella

backends/nxp/backend/ir/converter/builder/model_builder.py

@@ -1,6 +1,6 @@
 #
 # Copyright 2023 Martin Pavella
-# Copyright 2023-2025 NXP
+# Copyright 2023-2026 NXP
 #
 # License: MIT
 # See the LICENSE_MIT for more details.
@@ -34,6 +34,7 @@
     BuiltinOperator,
 )
 from executorch.backends.nxp.backend.ir.lib.tflite.TensorType import TensorType
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing import optimizer
 from executorch.backends.nxp.backend.ir.tensor_formatting import TensorFormat
 from executorch.backends.nxp.backend.ir.tflite_generator.builtin_options import (
     cast_options,
@@ -49,7 +50,6 @@
 from executorch.backends.nxp.backend.ir.tflite_generator.custom_options.flex_transpose_options import (
     FlexTranspose,
 )
-from executorch.backends.nxp.backend.ir.tflite_optimizer import optimizer
 from executorch.backends.nxp.backend.neutron_operator_support import (
     transposition_is_supported_on_neutron,
 )

…xp/backend/ir/tflite_optimizer/README.md …/ir/neutron_ir_post_processing/README.mdbackends/nxp/backend/ir/tflite_optimizer/README.md renamed to backends/nxp/backend/ir/neutron_ir_post_processing/README.md backends/nxp/backend/ir/tflite_optimizer/README.md renamed to backends/nxp/backend/ir/neutron_ir_post_processing/README.md

@@ -1,4 +1,4 @@
-# Copyright 2024-2025 NXP
+# Copyright 2024-2026 NXP
 #
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
@@ -10,15 +10,15 @@
 from executorch.backends.nxp.backend.ir.lib.tflite.ActivationFunctionType import (
     ActivationFunctionType,
 )
-from executorch.backends.nxp.backend.ir.tflite_generator import tflite_model
-from executorch.backends.nxp.backend.ir.tflite_optimizer.graph_utils import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.graph_utils import (
     NameToTensorMap,
     operator_is_type,
 )
-from executorch.backends.nxp.backend.ir.tflite_optimizer.optimizations.base_optimization import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.optimizations.base_optimization import (
     InputTensorToOpsMap,
     OutputTensorToOpMap,
 )
+from executorch.backends.nxp.backend.ir.tflite_generator import tflite_model
 
 
 class OpRule(ABC):

…/backend/ir/tflite_optimizer/__init__.py …r/neutron_ir_post_processing/__init__.pybackends/nxp/backend/ir/tflite_optimizer/__init__.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/__init__.py backends/nxp/backend/ir/tflite_optimizer/__init__.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/__init__.py

@@ -1,4 +1,4 @@
-# Copyright 2024 NXP
+# Copyright 2024-2026 NXP
 #
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
@@ -7,7 +7,7 @@
 
 from executorch.backends.nxp.backend.ir.conversion_config import ConversionConfig
 from executorch.backends.nxp.backend.ir.converter.builder import model_builder
-from executorch.backends.nxp.backend.ir.tflite_optimizer.graph_utils import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.graph_utils import (
     create_tensor_to_operator_dictionaries,
     InputTensorToOpsMap,
     OutputTensorToOpMap,

…ckend/ir/tflite_optimizer/graph_utils.py …eutron_ir_post_processing/graph_utils.pybackends/nxp/backend/ir/tflite_optimizer/graph_utils.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/graph_utils.py backends/nxp/backend/ir/tflite_optimizer/graph_utils.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/graph_utils.py

@@ -1,4 +1,4 @@
-# Copyright 2024-2025 NXP
+# Copyright 2024-2026 NXP
 #
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
@@ -7,14 +7,14 @@
 
 from executorch.backends.nxp.backend.ir import logger
 from executorch.backends.nxp.backend.ir.converter.conversion import translator
-from executorch.backends.nxp.backend.ir.tflite_optimizer.optimizations.base_optimization import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.optimizations.base_optimization import (
     BaseOptimization,
 )
-from executorch.backends.nxp.backend.ir.tflite_optimizer.pattern_matcher import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.pattern_matcher import (
     Op,
     PatternMatcher,
 )
-from executorch.backends.nxp.backend.ir.tflite_optimizer.tensor_rules import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.tensor_rules import (
     TensorDimensionsMatch,
     TensorHasRank,
     TensorIsChannelsFirst,

…nd/ir/tflite_optimizer/operator_rules.py …ron_ir_post_processing/operator_rules.pybackends/nxp/backend/ir/tflite_optimizer/operator_rules.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/operator_rules.py backends/nxp/backend/ir/tflite_optimizer/operator_rules.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/operator_rules.py

@@ -1,4 +1,4 @@
-# Copyright 2024-2025 NXP
+# Copyright 2024-2026 NXP
 #
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
@@ -9,21 +9,21 @@
     apply_permutation_to,
     combine_permutations,
 )
-from executorch.backends.nxp.backend.ir.tflite_generator import tflite_model
-from executorch.backends.nxp.backend.ir.tflite_optimizer.optimizations.base_optimization import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.optimizations.base_optimization import (
     BaseOptimization,
 )
-from executorch.backends.nxp.backend.ir.tflite_optimizer.pattern_matcher import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.pattern_matcher import (
     MultipleSameOps,
     Op,
     PatternMatcher,
 )
-from executorch.backends.nxp.backend.ir.tflite_optimizer.tensor_rules import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.tensor_rules import (
     RuleOr,
     TensorHasData,
     TensorIsNotModelOutput,
     TensorsHaveData,
 )
+from executorch.backends.nxp.backend.ir.tflite_generator import tflite_model
 from executorch.backends.nxp.backend.neutron_operator_support import (
     transposition_is_supported_on_neutron,
 )

…lite_optimizer/optimizations/__init__.py …ost_processing/optimizations/__init__.pybackends/nxp/backend/ir/tflite_optimizer/optimizations/__init__.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/optimizations/__init__.py backends/nxp/backend/ir/tflite_optimizer/optimizations/__init__.py renamed to backends/nxp/backend/ir/neutron_ir_post_processing/optimizations/__init__.py

@@ -1,6 +1,6 @@
 #
 # Copyright 2023 Martin Pavella
-# Copyright 2024-2025 NXP
+# Copyright 2024-2026 NXP
 #
 # License: MIT
 # See the LICENSE_MIT for more details.
@@ -11,10 +11,10 @@
 
 from executorch.backends.nxp.backend.ir import logger
 from executorch.backends.nxp.backend.ir.conversion_config import ConversionConfig
-from executorch.backends.nxp.backend.ir.tflite_optimizer.optimizations.permute_fully_connected_weights_after_reshape import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.optimizations.permute_fully_connected_weights_after_reshape import (
     PermuteFullyConnectedWeightsAfterReshape,
 )
-from executorch.backends.nxp.backend.ir.tflite_optimizer.optimizations.prune_transpose_operators import (
+from executorch.backends.nxp.backend.ir.neutron_ir_post_processing.optimizations.prune_transpose_operators import (
     FuseTransposeOperators,
     RemoveIdentityTransposeOperators,
 )