flow.c (redirect_edge_and_branch_force): Initialize global_live_at_start and global_l...

flow.c (redirect_edge_and_branch_force): Initialize global_live_at_start and global_live_at_end.

        * flow.c (redirect_edge_and_branch_force): Initialize
        global_live_at_start and global_live_at_end.
        (allocate_bb_life_data): Export.
        * basic-block.h (allocate_bb_life_data): Declare it.
        * toplev.c (rest_of_compilation): Call it.

From-SVN: r44023