Re: [RFC v2 43/76] target/riscv: rvv-0.9: integer extension instructions

[Richard Henderson]

On 7/22/20 2:16 AM, frank.ch...@sifive.com wrote:
> +    static gen_helper_gvec_3_ptr * const fns[6][4] = {
> +        {
> +            NULL, gen_helper_vzext_vf2_h,
> +            gen_helper_vzext_vf2_w, gen_helper_vzext_vf2_d
> +        },
> +        {
> +            NULL, NULL,
> +            gen_helper_vzext_vf4_w, gen_helper_vzext_vf4_d,
> +        },
> +        {
> +            NULL, NULL,
> +            NULL, gen_helper_vzext_vf8_d
> +        },
> +        {
> +            NULL, gen_helper_vsext_vf2_h,
> +            gen_helper_vsext_vf2_w, gen_helper_vsext_vf2_d
> +        },
> +        {
> +            NULL, NULL,
> +            gen_helper_vsext_vf4_w, gen_helper_vsext_vf4_d,
> +        },
> +        {
> +            NULL, NULL,
> +            NULL, gen_helper_vsext_vf8_d
> +        }
> +    };

I don't understand why there aren't more functions in this table.  As far as I
can see, the only NULLs should be at [*][0].


r~