[Bug target/122853] RISC-V: Wrong code with RVV loop vectorization: vwsubu.vv used producing wrong results

[chenzhongyao.hit at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122853

--- Comment #1 from Zhongyao Chen <chenzhongyao.hit at gmail dot com> ---
https://godbolt.org/z/orxE6cePM