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

[rdapp at gcc dot gnu.org via Gcc-bugs]

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

--- Comment #2 from Robin Dapp <rdapp at gcc dot gnu.org> ---
Hi Zhongyao, I'm getting a PASS locally with your options, even when copying
the asm from godbolt.  Could you detail what's wrong here?

vwsubu is fine because we zero-extend the unsigned input.