[Bug ada/81956] [7/8/9 regression] calling a null procedure is not skipped

[demoonlit at panathenaia dot halfmoon.jp]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81956

--- Comment #3 from yuta tomino <demoonlit at panathenaia dot halfmoon.jp> ---
I'm trying gcc-8.3. This is probably fixed in 8.x.
Thanks.