[Bug tree-optimization/94293] [missed optimization] Useless statements populating local string not removed

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94293

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-03-24
     Ever confirmed|0                           |1
           Keywords|                            |missed-optimization

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
For the DSE part there's no operator delete handling in stmt_kills_ref_p.  The
clobber would need to be handled by DCE which is the one eliding new/delete
pairs.

Probably both are not too difficult to handle.