* cfgloop.h (DLTHE_FLAG_COMPLETTE_PEEL): New flag.
	* cfgloopmanip.c (duplicate_loop_to_header_edge): Special case
	profile updating for complette unrolling.
	* loop-unroll.c (peel_loop_completely): Use it.
	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Likewise.
	(tree_unroll_loops_completely): Disable code growing unrolling of cold
	loops.

	* update-conroll.c: New testcase.
	* update-conroll-2.c: New testcase.

From-SVN: r102687