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Add lru_cache for node comparison #148

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Add lru_cache for node comparison #148

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4 changes: 2 additions & 2 deletions exir/backend/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.

from functools import lru_cache
from typing import Iterable, List, Tuple

import torch
Expand All @@ -16,6 +17,7 @@
T_DQuantPerTensor = exir_ops.edge.quantized_decomposed.dequantize_per_tensor.default


@lru_cache(maxsize=128)
def is_same_node(
node_left: Iterable[torch.fx.Node],
node_right: Iterable[torch.fx.Node],
Expand All @@ -39,8 +41,6 @@ def is_same_node(
if len(list(node_left)) != len(list(node_right)):
return False
for n_left, n_right in zip(node_left, node_right):
# pyre-fixme[6]: For 1st argument expected `Iterable[Node]` but got `Node`.
# pyre-fixme[6]: For 2nd argument expected `Iterable[Node]` but got `Node`.
if not is_same_node(n_left, n_right):
return False
return True
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