[Bug c++/14138] New: 100x -O0 C++ Compile Time Regression {3.2,3.3} -> {3.4,3.5}

["John at xza5 dot com" <gcc-bugzilla at gcc dot gnu dot org>]

We've got some generated C++ which compiles in about 10s (on a P4 2800) at -O0
with gcc-3.2 or 3.3.2, but takes about 1000s with 3.4.0 or 3.5.0.

-ftime-report says that the parser time has gone from 8.04s (gcc-3.3.2) to
958.19s (gcc-3.4.0) 

I'll attach the .ii shortly.

-- 
           Summary: 100x -O0 C++ Compile Time Regression {3.2,3.3} ->
                    {3.4,3.5}
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: John at xza5 dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14138