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[ET-VK] Support alias_copy in partitioner by removing it as a redundant op #18408

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Merged
meta-codesync merged 1 commit into from
Mar 24, 2026
Merged

[ET-VK] Support alias_copy in partitioner by removing it as a redundant op #18408

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2 changes: 2 additions & 0 deletions backends/vulkan/_passes/remove_redundant_ops.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,8 @@ class RemoveRedundantOpsTransform(ExportPass):
exir_ops.edge.aten.clone.default,
torch.ops.aten.alias.default,
exir_ops.edge.aten.alias.default,
torch.ops.aten.alias_copy.default,
exir_ops.edge.aten.alias_copy.default,
exir_ops.edge.aten.lift_fresh_copy.default,
exir_ops.edge.dim_order_ops._to_dim_order_copy.default,
exir_ops.edge.dim_order_ops._clone_dim_order.default,
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14 changes: 14 additions & 0 deletions backends/vulkan/op_registry.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1125,6 +1125,20 @@ def register_clone_dim_order():
)


# alias_copy is a no-op identity operation (same as clone/alias). It is removed
# by RemoveRedundantOpsTransform during preprocess, so the C++ runtime never sees
# it. Registering it here ensures the partitioner delegates it to Vulkan rather
# than creating partition boundaries that break the graph.
@update_features(exir_ops.edge.aten.alias_copy.default)
def register_alias_copy():
return OpFeatures(
inputs_storage=utils.ANY_STORAGE,
inputs_dtypes=utils.FP_INT_BOOL_T,
supports_resize=True,
supports_highdim=True,
)


# =============================================================================
# Gather.cpp
# =============================================================================
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