[Bug rtl-optimization/115104] RISC-V: GCC-14 can combine vsext+vadd -> vwadd but Trunk GCC (GCC 15) Failed

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115104

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am 80% sure this was exposed by the combine patch which will be fixed but not
in combine. I am not sure the time frame of the improvement though.