{"ast_node_type":"other","tokens":[{"end":106,"kind":"keyword","start":0,"text":"//"}]}
        // SIMD types must be newtypes around arrays, so all we have to do is project to their only field.
        assert!(base.layout().ty.ty_adt_def().unwrap().repr().simd());
        let array = self.project_field(base, FieldIdx::ZERO)?;