vector.decode

← vector dialect

Decode physical encoded vector payload lanes into logical numeric lanes using an explicit encoding witness. The schema value carries compact representation facts such as element format, block extent, packing order, rounding, and sparsity kind. Bulk or runtime-varying interpretation data such as scales, zero-points, codebook rows, sparse metadata, residual streams, signs, and online amax values stay visible as auxiliary SSA operands instead of being hidden inside the encoding value.

Operation contract

Property	Value
Semantic phase	executable
Traits	Pure, RefinableResultTypeRefs

Signature

Kind	Name	Type	Cardinality	Description
Operand	payload	vector	required	Physical encoded payload lanes.
Operand	schema	encoding<schema>	required	Schema witness for interpreting the payload.
Operand	auxiliary	vector	variadic	Explicit scale, table, metadata, or online state operands.
Result	result	vector	required	Decoded logical numeric lanes.
Attribute	auxiliary_names	dict	optional	Sorted auxiliary operand keys mapped to auxiliary operand ordinals.

Examples

%values = vector.decode %payload using %schema {scale = %scale : vector<1xf16>} : vector<4xi32>, encoding<schema> -> vector<32xf32>

%values = vector.decode %payload using %schema : vector<4xi32>, encoding<schema> -> vector<32xf32>