2013-04-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/57071
	* frontend-passes (optimize_power):  New function.
	(optimize_op):  Use it.

2013-04-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/57071
	* gfortran.dg/power_3.f90:  New test.
	* gfortran.dg/power_4.f90:  New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198369 138bc75d-0d04-0410-961f-82ee72b054a4