[Bug c++/69492] New: Another case of excessive compile time with -O2

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69492

            Bug ID: 69492
           Summary: Another case of excessive compile time with -O2
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 37476
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37476&action=edit
gzipped C++ source code

Following on from bug # 69347, the attached code, when compiled with
-O2 by gcc trunk 20160125, built with --enable-checking=yes, takes about
13 minutes on a 3.5GHz AMD box.