2005-12-17 Danny Berlin <dberlin@dberlin.org>

	    Kenneth Zadeck <zadeck@naturalbridge.com>

	* 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.




git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108713 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 6 insertions, 6 deletions

diff --git a/gcc/bt-load.c b/gcc/bt-load.c
index ae648411940..c39c5b5aaaa 100644
--- a/gcc/bt-load.c
+++ b/gcc/bt-load.c
@@ -461,7 +461,7 @@ compute_defs_uses_and_gen (fibheap_t all_btr_defs, btr_def *def_array,
   defs_uses_info info;
 
   sbitmap_vector_zero (bb_gen, n_basic_blocks);
-  for (i = 0; i < n_basic_blocks; i++)
+  for (i = NUM_FIXED_BLOCKS; i < n_basic_blocks; i++)
     {
       basic_block bb = BASIC_BLOCK (i);
       int reg;
@@ -622,7 +622,7 @@ compute_kill (sbitmap *bb_kill, sbitmap *btr_defset,
   /* For each basic block, form the set BB_KILL - the set
      of definitions that the block kills.  */
   sbitmap_vector_zero (bb_kill, n_basic_blocks);
-  for (i = 0; i < n_basic_blocks; i++)
+  for (i = NUM_FIXED_BLOCKS; i < n_basic_blocks; i++)
     {
       for (regno = first_btr; regno <= last_btr; regno++)
 	if (TEST_HARD_REG_BIT (all_btrs, regno)
@@ -645,14 +645,14 @@ compute_out (sbitmap *bb_out, sbitmap *bb_gen, sbitmap *bb_kill, int max_uid)
   int changed;
   sbitmap bb_in = sbitmap_alloc (max_uid);
 
-  for (i = 0; i < n_basic_blocks; i++)
+  for (i = NUM_FIXED_BLOCKS; i < n_basic_blocks; i++)
     sbitmap_copy (bb_out[i], bb_gen[i]);
 
   changed = 1;
   while (changed)
     {
       changed = 0;
-      for (i = 0; i < n_basic_blocks; i++)
+      for (i = NUM_FIXED_BLOCKS; i < n_basic_blocks; i++)
 	{
 	  sbitmap_union_of_preds (bb_in, bb_out, i);
 	  changed |= sbitmap_union_of_diff_cg (bb_out[i], bb_gen[i],
@@ -671,7 +671,7 @@ link_btr_uses (btr_def *def_array, btr_user *use_array, sbitmap *bb_out,
 
   /* Link uses to the uses lists of all of their reaching defs.
      Count up the number of reaching defs of each use.  */
-  for (i = 0; i < n_basic_blocks; i++)
+  for (i = NUM_FIXED_BLOCKS; i < n_basic_blocks; i++)
     {
       basic_block bb = BASIC_BLOCK (i);
       rtx insn;
@@ -1397,7 +1397,7 @@ migrate_btr_defs (enum reg_class btr_class, int allow_callee_save)
     {
       int i;
 
-      for (i = 0; i < n_basic_blocks; i++)
+      for (i = NUM_FIXED_BLOCKS; i < n_basic_blocks; i++)
 	{
 	  basic_block bb = BASIC_BLOCK (i);
 	  fprintf(dump_file,