[Bug c++/58192] New: G++ emits incorrect code when passing enum classes as function parameters

[temporal at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58192

            Bug ID: 58192
           Summary: G++ emits incorrect code when passing enum classes as
                    function parameters
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: temporal at gmail dot com

Demonstration attached.  It repros with g++ 4.8.1 (tested on Ubuntu and
Cygwin).  I think I saw similar problems with g++ 4.7.3, but this particular
test case does not seem to repro with it.