Re: [RFC PATCH v2 05/44] target/loongarch: Implement vadd/vsub

[gaosong]

在 2023/3/29 上午3:59, Richard Henderson 写道:
> On 3/27/23 20:05, Song Gao wrote:
> > +    func(mop, vd_ofs, vj_ofs, vk_ofs, 16, 16);
>
> Oh, reading about ASXD and 256-bit vectors makes me wonder if it would 
> be better to plan ahead and have a function, or DisasContext member, 
> for the length of the vector. 

like arm:

/* Return the byte size of the "whole" vector register, VL / 8.  */
static inline int vec_full_reg_size(DisasContext *s)
{
    return s->vl;
}

What I'm confused about is what is the difference between s->vl and 
s->vec_len ?

Thanks.
Song Gao