Function fold_vector

cranelift/interpreter/src/step.rs:1544–1549

Performs a lanewise fold on a vector type

(v: DataValue, ty: types::Type, init: DataValue, op: F)

/// Performs a lanewise fold on a vector type
fn fold_vector<F>(v: DataValue, ty: types::Type, init: DataValue, op: F) -> ValueResult<DataValue>
where
    F: FnMut(DataValue, DataValue) -> ValueResult<DataValue>,
{
    extractlanes(&v, ty)?.into_iter().try_fold(init, op)
}

/// Performs the supplied unary arithmetic `op` on a Value, either Vector or Scalar.
fn unary_arith<F>(x: DataValue, vector_type: types::Type, op: F) -> ValueResult<DataValue>