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Do not use BNNS copy when dtypes differ in CoreML #13018

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Aug 1, 2025
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Do not use BNNS copy when dtypes differ in CoreML #13018

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3 changes: 3 additions & 0 deletions backends/apple/coreml/runtime/delegate/multiarray.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,9 @@ bool init_bnns_descriptor(BNNSNDArrayDescriptor& bnns_descriptor, const MultiArr
}

bool copy_using_bnns(const MultiArray& src, MultiArray& dst) {
if (src.layout().dataType() != dst.layout().dataType()) {
return false;
}
if (dst.layout().num_bytes() < src.layout().num_bytes()) {
return false;
}
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