[Bug target/110748] RISC-V: optimize store of DF 0.0

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110748

--- Comment #13 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You could also look at how aarch64 implemented a similar thing (not just for
-0.0 but for many other constants too):
r8-2248-ga217096563e356fa03c .