[Bug tree-optimization/107462] Missed optimization of std::atomic::fetch_xxx "null operations" to std::atomic::load()

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107462

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c++                         |tree-optimization
           Keywords|                            |missed-optimization

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
There might be a dup of this bug already but gcc does not try to optimize fetch
and add to just fetch if the operation was going to be a nop.