[Bug target/110235] [14 Regression] Wrong use of us_truncate in SSE and AVX RTL representation

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110235

--- Comment #8 from Hongtao.liu <crazylht at gmail dot com> ---
Fixed for GCC 14, the bug is latent on all release branches, but would not be
exposed without rtl us/ss_truncate simplification.