> In RVV 1.0, the instruction "vsetvli  zero,zero,*" indicates that the
> available vector length (avl) does not change. However, in XTheadVector,
> this same instruction signifies that the avl should take the maximum value.
> Consequently, when fusing vsetvl instructions, the optimization labeled
> "VSETVL_VTYPE_CHANGE_ONLY" is disabled for XTheadVector.

LGTM.

-- 
Regards
 Robin

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