_ => bug!("from_const: invalid ByVal layout: {:#?}", layout),
};
bx.scalar_to_backend(prim, scalar, bx.immediate_backend_type(layout))
_ => bug!("from_const: invalid ByVal layout: {:#?}", layout),
};
bx.scalar_to_backend(prim, scalar, bx.immediate_backend_type(layout))