[Bug middle-end/107264] -O1 disables -Wfree-nonheap-object on a map

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107264

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-10-14
          Component|c++                         |middle-end
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
AT -O0 the IR is:
  _1 = std::_Rb_tree_iterator<std::pair<int* const, Opaque*> >::operator->
(&itr);
  _13 = &_1->second;
  if (_13 != 0B)
    goto <bb 4>; [INV]
  else
    goto <bb 5>; [INV]

  <bb 4> :
  *_13 ={v} {CLOBBER};
  operator delete (_13, 8);

While at -O1:
  _6 = &MEM[(struct pair *)itr$_M_node_18 + 32B].second;
  operator delete (_6, 8);

I am shocked that didn't detect as a problem.

Confirmed.