[Bug middle-end/105469] "execution reached an unreachable program point" with -flto since r5-7027-g0b986c6ac777aa4e

[remi.coulom at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105469

--- Comment #14 from Rémi Coulom <remi.coulom at gmail dot com> ---
Thanks for investigating the bug.

Can you recommend a workaround at this point?

I don't want to tell users of the library to change their compilation options,
so I tried this in class Client_Data:

#ifdef __GNUC__
// Workaround for gcc bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105469
   __attribute__ ((noinline))
#endif
   void update()
   {
    ...
   }

It seems to be working OK for the moment, but all kinds of random changes to
the code seemed to make the bug appear or disappear in the past, so I am not
completely satisfied with this situation. Can you explain the bug better? Do
you have any recommendation?

Thanks.