[Bug c/67651] Optimizer assumes nothing can reside at address 0 despite -fno-delete-null-pointer-checks

[soren.brinkmann at xilinx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67651

--- Comment #1 from Sören Brinkmann <soren.brinkmann at xilinx dot com> ---
Created attachment 36352
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36352&action=edit
Makefile for the test case