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Add ort-specific passes to ort_fusion #2532

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Merged
merged 2 commits into from
Aug 29, 2025
Merged

Add ort-specific passes to ort_fusion #2532

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8972962
add passes to ort_fusion
titaiwangms Aug 29, 2025
f998ea8
delete TODO
titaiwangms Aug 29, 2025
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14 changes: 14 additions & 0 deletions onnxscript/rewriter/ort_fusions/_core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -140,4 +140,18 @@ def optimize_for_ort(
)
# Apply the ORT pattern rewrite rules.
rewrite(model, ORT_PATTERN_REWRITE_RULES)

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(),
common_passes.ShapeInferencePass(),
common_passes.CheckerPass(),
)
assert passes.in_place
result = passes(model)
assert result.model is model
return model, fusion_count
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