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

[crazylht at gmail dot com]

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

--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Richard Biener from comment #3)
> We already put the const_vector into the constant pool at RTL expansion time,
> possibly because the move patterns do not allow vector constants fitting into
> {SI,DI}mode?

Good idea, it maybe better to support it in the move patterns.