2008-02-20  Richard Guenther  <rguenther@suse.de>

	* fold-const.c (split_tree): Associate floatig-point expressions
	if flag_associative_math is set.

	* gcc.dg/fold-reassoc-1.c: New testcase.
	* gcc.dg/tree-ssa/recip-3.c: Adjust to not compute d/d.

From-SVN: r132481