[Relax][Bugfix] Preserve dtype in ToMixedPrecision for kNever ops #17263
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Prior to this commit, while an operator with the `MixedPrecisionPolicyKind::kNever` attribute would not be updated from `float32` to `float16`, it would be erroneously updated from `float16` to `float32`. This commit updates `ToMixedPrecision` to preserve the datatype of any arguments used in a `kNever` operation, rather than forcing them to a `float32` datatype.
tqchen
approved these changes
Aug 11, 2024
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Prior to this commit, while an operator with the
MixedPrecisionPolicyKind::kNeverattribute would not be updated fromfloat32tofloat16, it would be erroneously updated fromfloat16tofloat32.This commit updates
ToMixedPrecisionto preserve the datatype of any arguments used in akNeveroperation, rather than forcing them to afloat32datatype.