https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635
--- Comment #20 from Evgeniy Dushistov <dushistov at mail dot ru> ---
Also if add one line to code `printf("test\n");`
```
struct FooDeleter {
void operator()(FooOpaque *p) {
printf("test\n");
Foo_free(p);
}
};
```
gcc don't report any warning,
and valgrind also can not find any errors.
