[Bug c++/61674] The destructor of a simple class is removed by optimization

[A.Finch at lancaster dot ac.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61674

--- Comment #4 from Alex Finch <A.Finch at lancaster dot ac.uk> ---

 I should add that this problem was not observed in gcc 4.4.7 and earlier.