[Bug rtl-optimization/20365] New: simplify_plus_minus results are erratic

["amylaar at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

simplify_plus_minus uses an unstabilized qsort call.  This makes
the perfomed optimizations dependent on the qsort implementation.
The observed problem was that a mingw hosted compiler generated
different code than a Linux/GNU hosted compiler.
A patch is here:
http://gcc.gnu.org/ml/gcc-cvs/2004-06/msg00665.html

-- 
           Summary: simplify_plus_minus results are erratic
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: amylaar at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
OtherBugsDependingO 17652
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20365