https://issues.dlang.org/show_bug.cgi?id=21485

          Issue ID: 21485
           Summary: EH: Incomplete clean-up with -O
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: kinke@gmx.net

See the DMD-specific testcase exception in druntime:

https://github.com/dlang/druntime/blob/4ca9c36b91af06d92d69e94e72d3c77395409d20/src/core/lifetime.d#L1503-L1507

--