From 24bd1a0b27fc7ea64a1bec8eca37abc13cff4178 Mon Sep 17 00:00:00 2001 From: Daniel Berlin Date: Sat, 17 Dec 2005 13:40:27 +0000 Subject: basic-block.h: Changed basic block numbering so that the entry block is 0 and the exit block is 1. 2005-12-17 Danny Berlin Kenneth Zadeck * basic-block.h: Changed basic block numbering so that the entry block is 0 and the exit block is 1. Changed insn iterators so that they are tolerant of blocks with no insns. * regrename.c (copyprop_hardreg_forward): Changed basic block numbering so that the entry block is 0 and the exit block is 1. * sched-ebb.c (sehedule_ebbs): Ditto. * tracer.c (branch_ratio_cutoff): Ditto. * cfgloopmanip.c (fix_loop_structure): Ditto. * cfghooks.c (verify_flow_info): Ditto. * cfg.c (compact_blocks): Ditto. * reorg.c (dbr_schedule): Ditto. * flow.c (calculate_global_regs_live, libcall_dead_p): Ditto. * dominance.c (calc_dfs_tree_nonrec, calc_dfs_tree, calculate_dominance_info): Ditto. * cfganal.c (create_edge_list, print_edge_list, flow_depth_first_order_compute, flow_dfs_compute_reverse_init, flow_dfs_compute_reverse_add_bb, flow_dfs_compute_reverse_execute, dfs_enumerate_from): Ditto. * global.c (global_alloc, set_up_bb_rts_numbers): Ditto. * ifcvt.c (find_if_case_2): Ditto. * cfgbuild.c (control_flow_insn_p, count_basic_blocks, find_basic_blocks): Ditto. * predict.c (predict_loops, tree_bb_level_predictions, predict_paths_leading_to, propagate_freq): Ditto. * lcm.c (compute_antinout_edge, compute_laterin, compute_available): Ditto. * function.c (thread_prologue_and_epilogue_insns): Ditto. * gcse.c (gcse_main, bypass_jumps): Ditto. * profile.c (compute_branch_probabilities, compute_value_histograms, branch_prob): Ditto. * tree-flow-inline.h (bsi_start, bsi_after_labels, bsi_last): Ditto. * tree-ssa-phiopt.c (tree_ssa_phiopt, blocks_in_phiopt_order): Ditto. * bt-load.c (compute_defs_uses_and_gen, compute_kill, compute_out, link_btr_uses, migrate_btr_defs): Ditto. * tree-dfa.c (collect_dfa_stats): Ditto. * cfgcleanup.c (try_forward_edges, try_optimize_cfg): Ditto. * cfglayout.c (fixup_reorder_chain): Ditto. * bb-reorder.c (reorder_basic_blocks, duplicate_computed_gotos, partition_hot_cold_basic_blocks): Ditto. * var-tracking.c (vt_find_locations): Ditto. * cfgloop.c (flow_loops_cfg_dump, flow_loops_find, get_loop_body): Ditto. * sched-rgn.c (compute_trg_info, init_regions, schedule_insns): Ditto. * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, make_edges label_to_block_fn, print_loop_ir, tree_flow_call_edges_add): Ditto. * tree-ssa-reassoc.c (init_reassoc): Ditto. * cfgrtl.c (entry_of_function, rtl_verify_flow_info, rtl_flow_call_edges_add, rtl_flow_call_edges_add): Ditto. * df.c (df_analyze_1, hybrid_search, iterative_dataflow): Ditto and removed unused reverse orders. * df.h (): Ditto. * combine.c: Fix document typo. Co-Authored-By: Kenneth Zadeck From-SVN: r108713 --- gcc/bb-reorder.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'gcc/bb-reorder.c') diff --git a/gcc/bb-reorder.c b/gcc/bb-reorder.c index 40d0cdf..f46b2cf 100644 --- a/gcc/bb-reorder.c +++ b/gcc/bb-reorder.c @@ -1894,7 +1894,7 @@ reorder_basic_blocks (unsigned int flags) int i; struct trace *traces; - if (n_basic_blocks <= 1) + if (n_basic_blocks <= NUM_FIXED_BLOCKS + 1) return; if (targetm.cannot_modify_jumps_p ()) @@ -1986,7 +1986,7 @@ duplicate_computed_gotos (void) bitmap candidates; int max_size; - if (n_basic_blocks <= 1) + if (n_basic_blocks <= NUM_FIXED_BLOCKS + 1) return; if (targetm.cannot_modify_jumps_p ()) @@ -2169,7 +2169,7 @@ partition_hot_cold_basic_blocks (void) int n_crossing_edges; int max_edges = 2 * last_basic_block; - if (n_basic_blocks <= 1) + if (n_basic_blocks <= NUM_FIXED_BLOCKS + 1) return; crossing_edges = xcalloc (max_edges, sizeof (edge)); @@ -2177,8 +2177,8 @@ partition_hot_cold_basic_blocks (void) cfg_layout_initialize (0); FOR_EACH_BB (cur_bb) - if (cur_bb->index >= 0 - && cur_bb->next_bb->index >= 0) + if (cur_bb->index >= NUM_FIXED_BLOCKS + && cur_bb->next_bb->index >= NUM_FIXED_BLOCKS) cur_bb->aux = cur_bb->next_bb; find_rarely_executed_basic_blocks_and_crossing_edges (crossing_edges, -- cgit v1.1