flow.c (redirect_edge_and_branch_force): New.

flow.c (redirect_edge_and_branch_force): New.

	* flow.c (redirect_edge_and_branch_force): New.
	(can_fallthru): Ensure that basic blocks are succeeding.
	(try_optimize_cfg): Do not delete basic block if it is the last one.

	* flow.c (try_redirect_by_replacing_jump): Do not remove
	jumps with side effects, unlink chain on fallthru edge;
	set block for new jump instruction; avoid basic block to
	over by line number note.

	* flow.c (try_simplify_condjump): Verify that the condjump
	is not always falling trought.

	Re-install patch:
	* flow.c (try_redirect_by_replacing_jump): Remove cc0 setter.

	* flow.c (forwarder_block_p): Fix for fallthru blocks.
	(try_redirect_by_replacing_jump): Update properly the count
	and frequency information.

From-SVN: r43867