[LLVMbugs] [Bug 9311] New: aermod Polyhedron 2005 benchmark regressed 12.7% in llvm-gcc42 svn

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9311

           Summary: aermod Polyhedron 2005 benchmark regressed 12.7% in
                    llvm-gcc42 svn
           Product: tools
           Version: trunk
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: gfortran
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: howarth at nitro.med.uc.edu
                CC: llvmbugs at cs.uiuc.edu


The aermod Polyhedron 2005 benchmark for current llvm-gcc42 svn shows...


   Benchmark   Compile  Executable   Ave Run  Number   Estim
        Name    (secs)     (bytes)    (secs) Repeats   Err %
   ---------   -------  ----------   ------- -------  ------
      aermod     29.53     1013016     17.17      10  0.0065

on x86_64-apple-darwin10 compared to the results for llvm-gcc42 2.8 of...


   Benchmark   Compile  Executable   Ave Run  Number   Estim
        Name    (secs)     (bytes)    (secs) Repeats   Err %
   ---------   -------  ----------   ------- -------  ------
      aermod     18.69       10000     15.23      10  0.0412

which represents a 12.7% runtime regression.

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