[Bug target/118734] RISC-V: Vector broadcast via strided load.

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118734

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
For rv32 can you load a v2si and vmv.v.x that as vNdi?  In general I agree - it
might be also a -Os based decision.