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Allow pattern replacement to ignore literals #2519

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Allow pattern replacement to ignore literals #2519

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Allow pattern replacement to ignore literals
kimishpatel Jul 10, 2025
fd04d3b
Update on "Allow pattern replacement to ignore literals"
kimishpatel Jul 11, 2025
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11 changes: 9 additions & 2 deletions torchao/quantization/pt2e/reference_representation_rewrite.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@
from torch._higher_order_ops.out_dtype import out_dtype
from torch.ao.quantization.fx._decomposed import quantized_decomposed_lib # noqa: F401
from torch.fx import GraphModule
from torch.fx.subgraph_rewriter import replace_pattern
from torch.fx.subgraph_rewriter import replace_pattern_with_filters

from torchao.quantization.pt2e.export_utils import WrapperModule
from torchao.quantization.pt2e.utils import (
Expand Down Expand Up @@ -627,6 +627,7 @@ class _RewriteInfo:
# post transformation on the exported pattern and replacement GraphModule
pattern_post_trans: Optional[Callable[[GraphModule], GraphModule]] = None
replacement_post_trans: Optional[Callable[[GraphModule], GraphModule]] = None
ignore_literals: bool = False


def reference_representation_rewrite(model: GraphModule) -> GraphModule:
Expand Down Expand Up @@ -830,6 +831,12 @@ def reference_representation_rewrite(model: GraphModule) -> GraphModule:
replacement = replacement_post_trans(replacement)
pattern.recompile() # type: ignore[attr-defined]
replacement.recompile() # type: ignore[attr-defined]
replace_pattern(model, pattern, replacement)
replace_pattern_with_filters(
model,
pattern,
replacement,
match_filters=None,
ignore_literals=rewrite_info.ignore_literals,
) # type: ignore[arg-type]

return model
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