[Bug c++/64524] gcc can't detect same expression in both parts of ternary operator

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64524

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to David Binderman from comment #2)
Well, tokenwise comparison is difficult, as lots of things are folded early.
So if you don't mind the same value as folding, implementing that wouldn't be
that hard.