{"ast_node_type":"variable","tokens":[{"end":85,"kind":"keyword","start":0,"text":"let"}]}
        let shift_val = bx.context.new_vector_access(None, shift, index).to_rvalue();
        let b_val = bx.gcc_int_cast(b_val, new_int_type);
        let shift_val = bx.gcc_int_cast(shift_val, new_int_type);