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Date: Thu, 21 Jan 2010 16:19:00 -0000
Subject: [Bug fortran/42831]  New: Unneccessary array temporary produced
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From: "burnus at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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Topic arose during analyzing/fixing PR 42736. For the
    Table%RealData(:,1) = Table%RealData(:,1) * CENTIMETER
user-defined operation(*)/assignment an unnecessary temporary is produced. (The
"atmp" in the dump is not needed.)

An initial patch can be found at
  http://gcc.gnu.org/ml/fortran/2010-01/msg00100.html (Read complete thread.)
which needs some checking for correctness.


-- 
           Summary: Unneccessary array temporary produced
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42831