[Bug rtl-optimization/89303] [8 Regression] memory leak with shared_ptr and enable_shared_from_this

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89303

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #5)
> GIMPLE at -O1 looks OK-ish - release on all paths:

But release decrements the weak_count, and only calls _M_destroy() if the count
reaches zero.

The attachment in comment 7 removes all the atomics and still shows the same
problem.