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Skip ios-arm64-coreml-int8 recipe when quantizer module unavailable #16486

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20 changes: 15 additions & 5 deletions export/tests/test_target_recipes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -393,13 +393,23 @@ def _get_recipes(cls) -> Dict[str, Tuple[ExportRecipe, str]]:
if is_supported_platform_for_coreml_lowering():
from executorch.export.target_recipes import get_ios_recipe

all_recipes = {
"ios-arm64-coreml-fp16": (get_ios_recipe(), "CoreMLBackend"),
"ios-arm64-coreml-int8": (
all_recipes["ios-arm64-coreml-fp16"] = (get_ios_recipe(), "CoreMLBackend")

# ios-arm64-coreml-int8 requires CoreMLQuantizer which depends on
# torch.ao.quantization.quantizer. This module has been migrated to
# torchao and may not be available in all PyTorch versions.
# TODO: https://github.com/pytorch/executorch/issues/16484
# Update coremltools to use torchao.quantization.pt2e.quantizer
# instead of the deprecated torch.ao.quantization.quantizer, then remove this try/except.
try:
all_recipes["ios-arm64-coreml-int8"] = (
get_ios_recipe("ios-arm64-coreml-int8"),
"CoreMLBackend",
),
}
)
except (ImportError, ModuleNotFoundError, ValueError) as e:
logging.warning(
f"Skipping ios-arm64-coreml-int8 recipe (torch.ao.quantization.quantizer not available): {e}"
)

# Add android recipes
if is_fbcode() and is_supported_platform_for_qnn_lowering():
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