Re: [PATCH 20/30] tcg/loongarch: Implement setcond ops

[Richard Henderson]

On 9/20/21 1:04 AM, WANG Xuerui wrote:
> +    switch (cond) {
> +    case TCG_COND_EQ:
> +        tcg_out_opc_sub_d(s, ret, arg1, arg2);
> +        tcg_out_opc_sltui(s, ret, ret, 1);
> +        break;
> +    case TCG_COND_NE:
> +        tcg_out_opc_sub_d(s, ret, arg1, arg2);
> +        tcg_out_opc_sltu(s, ret, TCG_REG_ZERO, ret);
> +        break;

You accept zero as input; you'll want to skip the subtract in that case.

r~