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Add option to clear metadata in ort fusion #2685

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Merged
merged 2 commits into from
Nov 7, 2025
Merged

Add option to clear metadata in ort fusion #2685

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364eb62
Add option to clear metadata in ort fusion
gramalingam Nov 5, 2025
8d6a4e5
Address PR feedback
gramalingam Nov 7, 2025
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7 changes: 6 additions & 1 deletion onnxscript/rewriter/ort_fusions/_core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,7 @@ def optimize_for_ort(
config_name: str | None = None,
*,
debug: bool = False,
clear_metadata: bool = False,
) -> tuple[ir.Model, dict[str, int]]:
"""
Optimize the model for ORT backend.
Expand All @@ -128,6 +129,7 @@ def optimize_for_ort(
Typically it identifies the Execution Provider (EP) to optimize for.
If None, the default configuration will be used.
debug: If debug is True, enable pattern matching tracer for debugging.
clear_metadata: If True, clear metadata and doc strings from the model.

Returns:
A tuple containing:
Expand All @@ -145,7 +147,6 @@ def optimize_for_ort(
passes = ir.passes.Sequential(
# Apply the ORT optimization passes.
# https://github.com/microsoft/onnxruntime/blob/74dcf7e296639095dfa55d31336998b6f719ed76/onnxruntime/python/tools/transformers/dynamo_onnx_helper.py#L172
common_passes.ClearMetadataAndDocStringPass(),
# https://github.com/microsoft/onnxruntime/blob/74dcf7e296639095dfa55d31336998b6f719ed76/onnxruntime/python/tools/transformers/dynamo_onnx_helper.py#L139
common_passes.LiftConstantsToInitializersPass(lift_all_constants=False, size_limit=1),
common_passes.RemoveInitializersFromInputsPass(),
Expand All @@ -154,4 +155,8 @@ def optimize_for_ort(
assert passes.in_place
result = passes(model)
assert result.model is model

if clear_metadata:
common_passes.ClearMetadataAndDocStringPass()(model)

return model, fusion_count
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