{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"shift_mask_val(bx,"}]}
                shift_mask_val(bx, bx.element_type(llty), bx.element_type(mask_llty), invert);
            let mask =
            bx.vector_splat(bx.vector_length(mask_llty), mask)