basic-block.h (last_basic_block): Declare.
* basic-block.h (last_basic_block): Declare.
(expunge_block_nocompact): Declaration removed.
(compact_blocks): Declare.
* cfg.c (last_basic_block): New variable.
(expunge_block_nocompact): Removed.
(expunge_block): Do not compact basic blocks.
(compact_blocks): New.
* cfganal.c (flow_call_edges_add): Use the fact that bb indices no
longer change.
* cfgbuild.c (find_basic_blocks_1, find_basic_blocks): Set
last_basic_block.
* cfgcleanup.c (merge_blocks_move_predecessor_nojumps): Do not change
real positions of blocks.
(delete_unreachable_blocks): Simplified -- quadratic behavior now
cannot occur.
(cleanup_cfg): Compact blocks.
* cfgrtl.c (create_basic_block): Insert basic blocks to the end of
basic_block_info varray.
(flow_delete_block): Comment update.
(back_edge_of_syntactic_loop_p): Modify position check code.
(verify_flow_info): Update checking.
* flow.c (calculate_global_regs_live): Use FOR_EACH_BB.
* ifcvt.c (SET_ORIG_INDEX, ORIG_INDEX): Removed.
(find_if_case_1, find_if_case_2, if_convert): Use the fact that bb
indices no longer change.
* lcm.c (optimize_mode_switching): Replace n_basic_blocks with
last_basic_block.
* predict.c (estimate_bb_frequencies): Remove unneccessary code.
* profile.c (branch_prob): Compact blocks.
* sched-rgn.c (find_rgns): Replace n_basic_blocks with
last_basic_block.
From-SVN: r53957
13 files changed: