[Bug c/80122] __builtin_va_arg_pack() and __builtin_va_arg_pack_len() does not work correctly

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80122

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to rpirrera from comment #2)
> There is no work around for this bug?
> 
> Core parts of our code relied on __builtin_va_arg_pack() and
> __builtin_va_arg_pack_len() to work and now all silently fails.

I don't see a way to workaround the issue apart from re-organizing the code
(or patch GCC).