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Remove extract_sub_graph function from tf_optimize method. #2051

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Merged
merged 1 commit into from
Sep 30, 2022
Merged

Remove extract_sub_graph function from tf_optimize method. #2051

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8 changes: 0 additions & 8 deletions tf2onnx/tf_loader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,6 @@ def not_implemented_tf_placeholder(*args, **kwargs):
tf_gfile = tf.io.gfile
tf_placeholder = tf.compat.v1.placeholder
tf_placeholder_with_default = tf.compat.v1.placeholder_with_default
extract_sub_graph = tf.compat.v1.graph_util.extract_sub_graph
elif Version(tf.__version__) >= Version("1.13"):
# 1.13 introduced the compat namespace
tf_reset_default_graph = tf.compat.v1.reset_default_graph
Expand All @@ -85,7 +84,6 @@ def not_implemented_tf_placeholder(*args, **kwargs):
tf_gfile = tf.gfile
tf_placeholder = tf.compat.v1.placeholder
tf_placeholder_with_default = tf.compat.v1.placeholder_with_default
extract_sub_graph = tf.compat.v1.graph_util.extract_sub_graph
else:
# older than 1.13
tf_reset_default_graph = tf.reset_default_graph
Expand All @@ -96,7 +94,6 @@ def not_implemented_tf_placeholder(*args, **kwargs):
tf_gfile = tf.gfile
tf_placeholder = tf.placeholder
tf_placeholder_with_default = tf.placeholder_with_default
extract_sub_graph = tf.graph_util.extract_sub_graph


def inputs_without_resource(sess, input_names):
Expand Down Expand Up @@ -709,11 +706,6 @@ def tf_optimize(input_names, output_names, graph_def):
assert isinstance(input_names, list)
assert isinstance(output_names, list)

# TODO: is this needed ?
needed_names = [utils.node_name(i) for i in input_names] + \
[utils.node_name(i) for i in output_names]
graph_def = extract_sub_graph(graph_def, needed_names)

want_grappler = is_tf2() or Version(tf.__version__) >= Version("1.15")
if want_grappler:
graph_def = tf_optimize_grappler(input_names, output_names, graph_def)
Expand Down