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Fix mutable buffer tagging in ExecuTorch #11990

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Merged
metascroy merged 2 commits into from
Jun 26, 2025
Merged

Fix mutable buffer tagging in ExecuTorch #11990

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eb3e1f8
init
metascroy Jun 26, 2025
d9c361d
Merge branch 'main' into fix-mutable-buffer
metascroy Jun 26, 2025
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10 changes: 8 additions & 2 deletions exir/lowered_backend_module.py
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Original file line number Diff line number Diff line change
Expand Up @@ -599,7 +599,10 @@ def _get_new_signature( # noqa: C901

if any(
orig_output_spec.kind == OutputKind.BUFFER_MUTATION
and orig_output_spec.target in new_state_dict
and (
orig_output_spec.target in new_state_dict
or orig_output_spec.target in new_constants
)
for orig_output_spec in orig_output_specs
):
# If the delegate wants to consume the buffer, then the
Expand All @@ -612,7 +615,10 @@ def _get_new_signature( # noqa: C901
orig_output_spec
for orig_output_spec in orig_output_specs
if orig_output_spec.kind == OutputKind.BUFFER_MUTATION
and orig_output_spec.target in new_state_dict
and (
orig_output_spec.target in new_state_dict
or orig_output_spec.target in new_constants
)
][0]

assert len(orig_output_specs) == 1, (
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