frontend-passes.c (remove_trim): New function.

2011-06-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* frontend-passes.c (remove_trim):  New function.
	(optimize_assignment):  Use it.
	(optimize_comparison):  Likewise.  Return correct status
	for previous change.

2011-06-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.dg/trim_optimize_8.f90:  New test case.

From-SVN: r174983