2006-06-04 Richard Guenther <rguenther@suse.de>

	PR tree-optimization/27039
	* fold-const.c (fold_comparison): Handle pointer comparison
	again for all comparison codes.  Compare offsets in signed
	size type.
	(fold_binary): Move code from here.

	* gcc.dg/tree-ssa/loop-17.c: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@114357 138bc75d-0d04-0410-961f-82ee72b054a4