[Bug c/70038] [5.3.0 and 4.9.1]Wrong optimization with -O2

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70038

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |trippels at gcc dot gnu.org
         Resolution|---                         |INVALID

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Use -fno-delete-null-pointer-checks if you rely on this undefined behavior.