[Bug middle-end/72795] Missed optimization of external-linkage variables in presence of barriers

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72795

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
"memory" only includes memory that can be indirectly accessed (thus may be
address-taken in this or another CU).  You have to add other vars explicitely.

Note that we asume that asm volatile might read 'x' through such a pointer.