[Bug rtl-optimization/107775] misoptimization in vec_set lower part of vector in the memory.

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107775

--- Comment #2 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Richard Biener from comment #1)
> misoptimization as in wrong-code or missed-optimization?

missed optimization.