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.
Good catch: I just looked through the changed translate.c and this does
address the slli.uw case. I won't be able to retest this tonight, though.
I'll send the updated series as soon as possible, though.