{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"//"}]}
            // The align of a Vector can vary in surprising ways
            BackendRepr::ScalarPair(s1, s2) => Some(s1.align(cx).max(s2.align(cx)).abi),
            BackendRepr::SimdVector { .. } | BackendRepr::Memory { .. } => None,