recog.c (verify_changes, [...]): New functions, broken out of apply_change_group.

recog.c (verify_changes, [...]): New functions, broken out of apply_change_group.

	* recog.c (verify_changes, confirm_change_group): New functions,
	broken out of apply_change_group.
	(apply_change_group): Use them.
	* recog.h (verify_change, confirm_change_group): Declare.
	* rtl.h (redirect_jump_2): Declare.
	* jump.c (redirect_exp, invert_exp): Delete.
	(invert_exp_1): Take second parameter.  Return value.  Changed caller.
	(redirect_jump_2): New function, broken out of redirect_jump.
	(redirect_jump): Use redirect_jump_1 and redirect_jump_2.
	(invert_jump): Use invert_jump_1 and redirect_jump_2.
	* ifcvt.c (dead_or_predicable): Use redirect_jump_2.

From-SVN: r95813