{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"//"}]}
        // Shift the MSB to the right by "in_elem_bitwidth - 1" into the first bit position.
    ) -> &'ll Value {
        let shift_idx = bx.cx.const_int(bx.type_ix(in_elem_bitwidth), (in_elem_bitwidth - 1) as _);