[Bug middle-end/121389] [15/16 regression] Failed musttail with -fsanitize=address -O0 (error: cannot tail-call: return value changed after call)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121389

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Again I'll mention my rant that using heavily musttail attributes #ifndef
__OPTIMIZE__ doesn't make much sense unless it is really required for the
program not running out of stack.  In the protobuf case with hundreds of
musttail call attributes in each TU I strongly doubt about that.