On 9/3/21 7:00 PM, Philipp Tomsich wrote:
> @@ -652,5 +652,15 @@ static bool trans_slli_uw(DisasContext *ctx, arg_slli_uw *a)
>   {
>       REQUIRE_64BIT(ctx);
>       REQUIRE_ZBA(ctx);
> +
> +    /*
> +     * The shamt field is only 6 bits for RV64 (with the 7th bit
> +     * remaining reserved for RV128).  If the reserved bit is set
> +     * on RV64, the encoding is illegal.
> +     */
> +    if (a->shamt >= TARGET_LONG_BITS) {
> +        return false;
> +    }
> +
>       return gen_shift_imm_fn(ctx, a, EXT_NONE, gen_slli_uw);

As previously stated, drop this patch.
It is done correctly inside gen_shift_imm_fn.