PR middle-end/77445
	* tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges):
	correctly set frequency of oudgoing edge.
	(duplicate_thread_path): Fix profile updating.
	* gcc.dg/tree-ssa/pr77445-2.c: New testcase.
	* gcc.dg/tree-ssa/pr77445.c: New testcase.

From-SVN: r244528