* Makefile.in (cfg.o): Add new dependencies. * basic-block.h (reorder_block_def): Kill original/copy/duplicated/copy_number fields. (BB_DUPLICATED): New flag. (initialize_original_copy_tables, free_original_copy_tables, set_bb_original, get_bb_original, set_bb_copy, get_bb_copy): New. * cfg.c: Include hashtab.h and alloc-pool.h (bb_original, bb_copy, original_copy_bb_pool): New static vars. (htab_bb_copy_original_entry): New struct. (bb_copy_original_hash, bb_copy_original_eq): New static functions. (initialize_original_copy_tables, free_original_copy_tables, set_bb_original, get_bb_original, set_bb_copy, get_bb_copy): New global functions. * cfghooks.c (duplicate_block): Update original/copy handling. * cfglayout.c (fixup_reorder_chain): Likewise. (cfg_layout_initialize): Initialize orignal_copy tables. (cfg_layout_finalize): FInalize original_copy tables. (can_copy_bbs_p): Use BB_DUPLICATED flag. (copy_bbs): Likewise. * cfgloopmanip.c (update-single_exits_after_duplication): Likewise. (duplicate_loop_to_header_edge): Likewise; update handling of copy_number. (loop_version): Likewise. * dominance.c (get_dominated_by_region): Use BB_DUPLICATED_FLAG. * except.c (expand_resx_expr): Check that reg->resume is not set. * loop-unroll.c (unroll_loop_constant_iterations, unroll_loop_runtime_iterations, apply_opt_in_copies): Update copy/original handling. * loop-unwitch.c (unswitch_loop): Likewise. * tree-cfg.c (create_bb): Do not initialize RBI. (disband_implicit_edges): Do not kill RBI. (add_phi_args_after_copy_bb): Use new original/copy mapping. (add_phi_args_after_copy): Use BB_DUPLICATED flag. (tree_duplicate_sese_region): Update original/copy handling. * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Likewise. * tree-ssa-loop-manip.c (copy_phi_node_args): Likewise. * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Likewise. From-SVN: r101000
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