[Bug middle-end/42480] New: Wrong-code for air.f90 with "-O2 -fgraphite-identity"

[dominiq at lps dot ens dot fr]

At revision 155425 the executable  for air.f90 compiled with "-O2
-fgraphite-identity" gives:

...
  ITERATION#  TIME             FINAL          MASS RESIDUAL
       14  100.000043187820   0.01000000         NaN
 deltat, final t, iterations
   100.00000000000000        100.00004318782042               14
          14                       NaN

The executable obtained with "-O1 -fgraphite-identity" is correct.


-- 
           Summary: Wrong-code for air.f90 with "-O2 -fgraphite-identity"
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dominiq at lps dot ens dot fr
 GCC build triplet: x86_64-apple-darwin10
  GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42480