[Bug tree-optimization/111114] RISC-V: Failed combine extend + vcond_mask when modify by vect_recog_over_widening_pattern

[lehua.ding at rivai dot ai via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111114

--- Comment #2 from Lehua Ding <lehua.ding at rivai dot ai> ---
(In reply to Andrew Pinski from comment #1)
> There is a match pattern which handles the case where the convert (cast)
> will fold both sides of the vec_cond now (since r14-3337-g70c50c87273d94).
> 
>   vect__5.14_56 = .MASK_LEN_LOAD (vectp_a.12_54, 8B, mask__24.11_52, _67, 0);
> 
> Is there a way to simplify that with the convert?
> 
> Or maybe we want to it if one or the other conversion simplifies ....
> 
> Confirmed.

Thanks for the comments. Can we relax this match by removing the modifier "!"?