[Bug tree-optimization/114682] const_array[i].b where i is PHI<0,1,2> is not folded

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114682

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note I was imspired to look into this because of
https://github.com/llvm/llvm-project/issues/88274 (note LLVM does a worse job
here and does not constant loads the string either).