[patch, fortran] PR 57071, some power optimizations

[Thomas Koenig]

Am 28.04.2013 12:10, schrieb Tobias Burnus:
> OK - thanks for the patch.
>
> I wonder whether one should also handle:
>    1**k  == 1

Committed, thanks for the review!

I will do 1**k as a followup patch which should be quite obvious :-)

Regarding PR 57073, the real case - I have never worked with
GIMPLE, so I have no real idea how to start this.

Any volunteers?  Or should we handle this in the Fortran front
end after all?

	Thomas