As explained at http://gcc.gnu.org/ml/fortran/2010-09/msg00120.html the
transpose change committed at
http://gcc.gnu.org/viewcvs?view=revision&revision=164205 introduces unnecessary
temporaries for transpose calls as actual argument.


-- 
           Summary: [4.6 regression] Unnecessary temporary for transpose
                    calls as actual argument.
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mikael at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45648

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