* jump.c (redirect_exp_1): Rework from old redirect_exp. Never

    * jump.c (redirect_exp_1): Rework from old redirect_exp.  Never
        commit change group changes.
        (invert_exp_1): Similarly.
        (redirect_exp, invert_exp): Use them.
        (redirect_jump_1): New.
        (invert_jump_1): New.
        (jump_optimize_1): Remove code subsumed by condexec.c.
        * rtl.h (invert_jump_1, redirect_jump_1): Declare.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33474 138bc75d-0d04-0410-961f-82ee72b054a4