fold-const.c (fold_binary_loc): Move Optimize root(x)*root(y) as root(x*y) to match.pd.

fold-const.c (fold_binary_loc): Move Optimize root(x)*root(y)	as root(x*y) to match.pd.

2015-08-26  Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

	* fold-const.c (fold_binary_loc) : Move Optimize
	root(x)*root(y)	as root(x*y) to match.pd.
	Move Optimize expN(x)*expN(y) as expN(x+y) to match.pd.
	Move Optimize pow(x,y)*pow(x,z) as pow(x,y+z) to match.pd.
	Move Optimize a/root(b/c) into a*root(c/b) to match.pd.
	Move Optimize x/expN(y) into x*expN(-y) to match.pd.

	* match.pd (mult (root:s @0) (root:s @1)): New simplifier.
	(mult (POW:s @0 @1) (POW:s @0 @2)) : New simplifier.
	(mult (exps:s @0) (exps:s @1)) : New simplifier.
	(rdiv @0 (root:s (rdiv:s @1 @2))) : New simplifier.
	(rdiv @0 (exps:s @1)) : New simplifier.

From-SVN: r227207