cfganal.c (flow_depth_first_order_compute, [...]): Use gcc_assert or gcc_unreachable.

	* cfganal.c (flow_depth_first_order_compute, dfs_enumerate_from,
	cfgbuild.c, inside_basic_block_p, control_flow_insn_p,
	make_label_edge, make_edges, find_basic_blocks_1): Use gcc_assert
	or gcc_unreachable.
	* cfg.c (clear_edges, initialize_bb_rbi, compact_blocks,
	remove_edge, alloc_aux_for_blocks, free_aux_for_blocks,
	alloc_aux_for_edges, free_aux_for_edges): Likewise.
	* cfgcleanup.c (try_forward_edges,
	merge_blocks_move_predecessor_nojumps,
	merge_blocks_move_successor_nojumps): Likewise.
	* cfgexpand.c (expand_gimple_cond_expr,
	expand_gimple_tailcall): Likewise.
	* cfghooks.c (duplicate_block): Likewise.
	* cfglayout.c (record_effective_endpoints,
	insn_locators_initialize, change_scope, fixup_reorder_chain,
	verify_insn_chain, fixup_fallthru_exit_predecessor,
	duplicate_insn_chain, cfg_layout_finalize): Likewise.
	* cfgloopanal.c (check_irred): Likewise.
	* cfgloop.c (superloop_at_depth, flow_loops_free,
	flow_loop_entry_edges_find, flow_loops_find,
	flow_loop_outside_edge_p, get_loop_body,
	get_loop_body_in_dom_order, get_loop_body_in_bfs_order,
	get_loop_exit_edges, num_loop_branches, cancel_loop,
	verify_loop_structure): Likewise.
	cfgloopmanip.c (find_path, remove_path, loop_delete_branch_edge,
	duplicate_loop_to_header_edge, create_preheader,
	create_loop_notes): Likewise.
	* cfgrtl.c (delete_insn, try_redirect_by_replacing_jump,
	edirect_branch_edge, force_nonfallthru_and_redirect,
	rtl_split_edge, insert_insn_on_edge, commit_one_edge_insertion,
	commit_edge_insertions, commit_edge_insertions_watch_calls,
	purge_dead_edges, cfg_layout_redirect_edge_and_branch,
	cfg_layout_redirect_edge_and_branch_force,
	cfg_layout_merge_blocks, rtl_flow_call_edges_add): Likewise.
	* cgraph.c (cgraph_node, cgraph_create_edge, cgraph_remove_edge,
	cgraph_redirect_edge_callee, cgraph_global_info, cgraph_rtl_info,
	cgraph_varpool_node): Likewise.
	* cgraphunit.c (cgraph_finalize_function,
	cgraph_finalize_compilation_unit, cgraph_mark_functions_to_output,
	cgraph_expand_function, cgraph_remove_unreachable_nodes,
	cgraph_clone_inlined_nodes, cgraph_mark_inline_edge,
	cgraph_mark_inline, cgraph_expand_all_functions,
	cgraph_build_static_cdtor): Likewise.
	* combine.c  (do_SUBST, try_combine, subst, combine_simplify_rtx,
	simplify_logical, distribute_notes, insn_cuid): Likewise.
	* conflict.c (conflict_graph_add, print_conflict): Likewise.
	* coverage.c (rtl_coverage_counter_ref, tree_coverage_counter_ref,
	coverage_checksum_string): Likewise.
	* cse.c (make_new_qty, make_regs_eqv, insert, invalidate,
	hash_rtx, exp_equiv_p, cse_basic_block, count_reg_usage,
	cse_cc_succs, cse_condition_code_reg): Likewise.
	* cselib.c (entry_and_rtx_equal_p, remove_useless_values,
	rtx_equal_for_cselib_p, wrap_constant, cselib_hash_rtx,
	new_cselib_val, cselib_subst_to_values, cselib_invalidate_regno,
	cselib_record_set): Likewise.

From-SVN: r87145

1 files changed, 4 insertions, 12 deletions

diff --git a/gcc/cfganal.c b/gcc/cfganal.c
index 58745d0ff09..cec33eceb59 100644
--- a/gcc/cfganal.c
+++ b/gcc/cfganal.c
@@ -762,14 +762,8 @@ flow_depth_first_order_compute (int *dfs_order, int *rc_order)
   free (stack);
   sbitmap_free (visited);
 
-  /* The number of nodes visited should not be greater than
-     n_basic_blocks.  */
-  if (dfsnum > n_basic_blocks)
-    abort ();
-
-  /* There are some nodes left in the CFG that are unreachable.  */
-  if (dfsnum < n_basic_blocks)
-    abort ();
+  /* The number of nodes visited should be the number of blocks.  */
+  gcc_assert (dfsnum == n_basic_blocks);
 
   return dfsnum;
 }
@@ -1019,8 +1013,7 @@ dfs_enumerate_from (basic_block bb, int reverse,
           for (e = lbb->pred; e; e = e->pred_next)
 	    if (!(e->src->flags & BB_VISITED) && predicate (e->src, data))
 	      {
-	        if (tv == rslt_max)
-	          abort ();
+	        gcc_assert (tv != rslt_max);
 	        rslt[tv++] = st[sp++] = e->src;
 	        e->src->flags |= BB_VISITED;
 	      }
@@ -1030,8 +1023,7 @@ dfs_enumerate_from (basic_block bb, int reverse,
           for (e = lbb->succ; e; e = e->succ_next)
 	    if (!(e->dest->flags & BB_VISITED) && predicate (e->dest, data))
 	      {
-	        if (tv == rslt_max)
-	          abort ();
+	        gcc_assert (tv != rslt_max);
 	        rslt[tv++] = st[sp++] = e->dest;
 	        e->dest->flags |= BB_VISITED;
 	      }