| # Copyright 2019 The TensorFlow Authors. All Rights Reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # ============================================================================== |
| """CodeLab for displaying error stack trace w/ MLIR-based converter.""" |
| |
| from __future__ import absolute_import |
| from __future__ import division |
| from __future__ import print_function |
| |
| import sys |
| |
| from absl import app |
| |
| import tensorflow as tf |
| |
| |
| def suppress_exception(f): |
| def wrapped(): |
| try: |
| f() |
| except: # pylint: disable=bare-except |
| pass |
| return wrapped |
| |
| |
| class TestModule(tf.Module): |
| """The test model has unsupported op.""" |
| |
| @tf.function(input_signature=[tf.TensorSpec(shape=[3, 3], dtype=tf.float32)]) |
| def model(self, x): |
| y = tf.math.reciprocal(x) # Not supported |
| return y + y |
| |
| |
| # comment out the `@suppress_exception` to display the stack trace |
| @suppress_exception |
| def test_from_saved_model(): |
| """displaying stack trace when converting saved model.""" |
| test_model = TestModule() |
| saved_model_path = '/tmp/test.saved_model' |
| save_options = tf.saved_model.SaveOptions(save_debug_info=True) |
| tf.saved_model.save(test_model, saved_model_path, options=save_options) |
| |
| # load the model and convert |
| converter = tf.lite.TFLiteConverter.from_saved_model(saved_model_path) |
| converter.convert() |
| |
| |
| # comment out the `@suppress_exception` to display the stack trace |
| # @suppress_exception |
| def test_from_concrete_function(): |
| """displaying stack trace when converting concrete function.""" |
| @tf.function(input_signature=[tf.TensorSpec(shape=[3, 3], dtype=tf.float32)]) |
| def model(x): |
| y = tf.math.reciprocal(x) # not supported |
| return y + y |
| |
| func = model.get_concrete_function() |
| converter = tf.lite.TFLiteConverter.from_concrete_functions([func], model) |
| converter.convert() |
| |
| |
| def main(argv): |
| if len(argv) > 1: |
| raise app.UsageError('Too many command-line arguments.') |
| |
| sys.stdout.write('==== Testing from_concrete_functions ====\n') |
| test_from_concrete_function() |
| |
| sys.stdout.write('==== Testing from_saved_model ====\n') |
| test_from_saved_model() |
| |
| |
| if __name__ == '__main__': |
| app.run(main) |