2006-09-05 Richard Guenther <rguenther@suse.de>

	PR tree-optimization/28905
	* tree-vrp.c (fix_equivalence_set): Manually implement
	!value_ranges_intersect_p to also handle symbolic ranges.

	* gcc.c-torture/compile/pr28905.c: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116696 138bc75d-0d04-0410-961f-82ee72b054a4