[Bug middle-end/115802] Non-atomic load of static variable moved out of loop despite atomic fences

[securesneakers at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115802

--- Comment #6 from Ivan Bodrov <securesneakers at gmail dot com> ---
Created attachment 58597
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58597&action=edit
Smaller, but non runnable example.

Full demo code for the above (can't be run, only shows code generation). Can be
compiled as:

    $ gcc -O2 -c codegen-demo.c