[Bug target/106585] RISC-V: Mis-optimized code gen for zbs

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106585

--- Comment #4 from Kito Cheng <kito at gcc dot gnu.org> ---
> It uses X iterator here instead of GPR, hmmm ...

I think that because we have w-variant before, so use X rather than GPR here,
but apparently we should revise this.