[Bug c++/83990] Spurious "potential null pointer dereference" warning regression from 7.1 onwards

[TonyELewis at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83990

--- Comment #1 from Tony E Lewis <TonyELewis at hotmail dot com> ---
Created attachment 43218
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43218&action=edit
Verbose output from GCC 7.2.0 [Ubuntu 17.10]