* gcc.dg/tree-prof/peel-1.c: New testcase.
	* loop-unroll.c (decide_peel_simple): Simple peeling makes sense even
	with simple loops; bound number of branches only when FDO is not
	available.
	(decide_unroll_stupid): Mention that num_loop_branches heuristics
	is off.

From-SVN: r192718