[Bug ipa/113907] [11/12/13/14 regression] ICU miscompiled since on x86 since r14-5109-ga291237b628f41

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113907

--- Comment #56 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Jan Hubicka from comment #55)
> It is however not hard to match the jump function while walking gimple
> bodies and comparing statements, which is backportable and localized. I am
> still waiting for my statistics to converge and will send it soon.

So, we can punt on differences there (that is desirable for backporting and
maybe GCC 14 too), or we could at that point populate an int vector, which maps
the callee
vector indexes to indexes in the callee vector in the other candidate function.
If unsuccessful, we just free the vector, if successful, we first walk all the
callees and union stuff in there using that vector.