[Bug tree-optimization/71867] Optimizer generates code dereferencing a null pointer

[asmwarrior at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71867

--- Comment #4 from asmwarrior <asmwarrior at gmail dot com> ---
It looks like the code is called from an inline function, you can see this code
snippet in the prepossessed file.


inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
{
    return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : 
# 502 "..\\..\\include/wx/object.h" 3 4
                                                                  __null
# 502 "..\\..\\include/wx/object.h"
                                                                      ;
}