------- Comment #9 from dominiq at lps dot ens dot fr  2010-08-02 14:36 -------
> Well, with an array descriptor it one only changes the strides/bounds ...

>From polyhedron test induct.f90


[macbook] lin/test% gfc -Warray-temporaries induct.f90
induct.f90:1629.20:

      rotate_quad = transpose(rotate_quad)
                    1
Warning: Creating array temporary at (1)
induct.f90:1741.20:

      rotate_quad = transpose(rotate_quad)
                    1
Warning: Creating array temporary at (1)
induct.f90:2016.20:

      rotate_quad = transpose(rotate_quad)
                    1
Warning: Creating array temporary at (1)
induct.f90:2159.20:

      rotate_quad = transpose(rotate_quad)
                    1
Warning: Creating array temporary at (1)
induct.f90:2509.24:

              rotate1 = transpose(rotate1)
                        1
Warning: Creating array temporary at (1)
induct.f90:2560.24:

              rotate2 = transpose(rotate2)
                        1
Warning: Creating array temporary at (1)
induct.f90:2702.24:

              rotate2 = transpose(rotate2)
                        1
Warning: Creating array temporary at (1)
induct.f90:2845.24:

              rotate1 = transpose(rotate1)
                        1
Warning: Creating array temporary at (1)
induct.f90:2896.24:

              rotate2 = transpose(rotate2)
                        1
Warning: Creating array temporary at (1)
induct.f90:3038.24:

              rotate2 = transpose(rotate2)
                        1
Warning: Creating array temporary at (1)

The same trick can probably used for RESHAPE, from capacita.f90

...

Warning: Creating array temporary at (1)
capacita.f90:137.30:

      maxval(abs( reshape(Ar1,(/Ng1,Ng2/)) - Y ))
                              1
Warning: Creating array temporary at (1)
capacita.f90:137.30:

      maxval(abs( reshape(Ar1,(/Ng1,Ng2/)) - Y ))
                              1
Warning: Creating array temporary at (1)
capacita.f90:137.18:

      maxval(abs( reshape(Ar1,(/Ng1,Ng2/)) - Y ))
                  1
Warning: Creating array temporary at (1)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45159

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