[Bug tree-optimization/54245] New: [4.8 regression] incorrect optimisation

[mans at mansr dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54245

             Bug #: 54245
           Summary: [4.8 regression] incorrect optimisation
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: m...@mansr.com


Created attachment 28007
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28007
Test case

Since r190220 the attached test is compiled incorrectly at -O1 and higher.