[Bug target/106022] [12/13 Regression] Enable vectorizer generates extra load

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106022

--- Comment #17 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to H.J. Lu from comment #16)
> Created attachment 53227 [details]
> The v4 patch
> 
> Here is a different approach by supporting 2/4/8 byte constant vector stores.

It LGTM.