[Bug target/117818] vec_add incorrectly generates vadduwm for vector char const inputs.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117818

--- Comment #2 from Steven Munroe <munroesj at gcc dot gnu.org> ---
Same issues compiled for power9/10