targhooks.c (default_unwind_emit, [...]): Use gcc_assert, gcc_unreachable & internal_error instead of abort.

	* targhooks.c (default_unwind_emit, default_scalar_mode_supported_p):
	Use gcc_assert, gcc_unreachable & internal_error instead of abort.
	* timevar.c (timevar_push, timevar_pop, timevar_start,
	timevar_stop): Likewise.
	* toplev.c (default_pch_valid_p): Likewise.
	* tracer.c (tail_duplicate): Likewise.
	* tree-alias-common.c (get_alias_var_decl,
	get_values_from_constructor, create_alias_var, delete_alias_vars,
	empty_points_to_set, same_points_to_set, ptr_may_alias_var):
	Likewise.
	* tree.c (tree_size, make_node_stat, copy_node_stat,
	build_int_cst_wide, integer_all_onesp, list_length, chainon,
	tree_node_structure, type_contains_placeholder_p, substitute_in_expr,
	substitute_placeholder_in_expr, tabilize_reference_1, build0_stat,
	build1_stat, build2_stat, build3_stat, build4_stat, is_attribute_p,
	lookup_attribute, type_hash_canon, host_integerp, iterative_hash_expr,
	build_method_type_directly, decl_type_context, get_callee_fndecl,
	get_set_constructor_bits, build_vector_type_for_mode, int_cst_value,
	tree_fold_gcd): Likewise.
	* tree-cfg.c (create_bb, make_ctrl_stmt_edges, make_exit_edges,
	make_cond_expr_edges, group_case_labels, tree_merge_blocks,
	cleanup_control_expr_graph, find_taken_edge,
	find_taken_edge_switch_expr, phi_alternatives_equal,
	is_ctrl_altering_stmt, disband_implicit_edges, set_bb_for_stmt,
	stmt_for_bsi, tree_find_edge_insert_loc, bsi_insert_on_edge_immediate,
	tree_split_edge, tree_verify_flow_info, thread_jumps,
	tree_redirect_edge_and_branch, tree_flow_call_edges_add): Likewise.
	* tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
	chrec_fold_multiply_poly_poly): Likewise.
	* tree-complex.c (extract_component, expand_complex_division,
	expand_complex_comparison, expand_complex_operations_1,
	build_replicated_const, expand_vector_operations_1): Likewise.
	* tree-data-ref.c (tree_fold_bezout, build_classic_dist_vector,
	build_classic_dir_vector): Likewise.
	* tree-dfa.c (compute_immediate_uses_for_phi,
	compute_immediate_uses_for_stmt, create_var_ann, create_stmt_ann,
	create_tree_ann, collect_dfa_stats, get_virtual_var): Likewise.
	* tree-dump.c (dequeue_and_dump): Likewise.
	* tree-eh.c (record_stmt_eh_region, add_stmt_to_eh_region,
	record_in_finally_tree, replace_goto_queue_1,
	maybe_record_in_goto_queue, verify_norecord_switch_expr,
	do_return_redirection): Likewise.
	* tree-if-conv.c (tree_if_convert_stmt, tree_if_convert_cond_expr,
	add_to_dst_predicate_list, find_phi_replacement_condition,
	replace_phi_with_cond_modify_expr, get_loop_body_in_if_conv_order):
	Likewise.
	* tree-inline.c (remap_decl, remap_type, remap_decls, copy_body_r,
	initialize_inlined_parameters, declare_return_variable,
	estimate_num_insns_1, expand_call_inline, expand_calls_inline,
	optimize_inline_calls, copy_tree_r): Likewise.
	* tree-into-ssa.c (rewrite_initialize_block_local_data, rewrite_stmt,
	ssa_rewrite_stmt, rewrite_into_ssa): Likewise.
	* tree-iterator.c (alloc_stmt_list, tsi_link_before, tsi_link_after,
	tsi_split_statement_list_after, tsi_split_statement_list_before):
	Likewise.
	* tree-mudflap.c (mf_varname_tree): Likewise.
	* tree-nested.c (create_tmp_var_for, lookup_field_for_decl,
	lookup_tramp_for_decl, convert_all_function_calls): Likewise.
	* tree-optimize.c (tree_rest_of_compilation): Likewise.
	* tree-outof-ssa.c (create_temp, eliminate_build, eliminate_phi,
	coalesce_abnormal_edges, coalesce_ssa_name, eliminate_virtual_phis,
	free_temp_expr_table, add_dependance, finish_expr, rewrite_trees):
	Likewise.
	* tree-phinodes.c (resize_phi_node, add_phi_arg,
	remove_all_phi_nodes_for): Likewise.
	* tree-pretty-print.c (op_prio, print_call_name): Likewise.
	* tree-profile.c (tree_gen_interval_profiler, tree_gen_pow2_profiler,
	tree_gen_one_value_profiler, tree_gen_const_delta_profiler): Likewise.
	* tree-sra.c (type_can_instantiate_all_elements, sra_hash_tree,
	sra_elt_eq, sra_walk_expr, instantiate_missing_elements,
	generate_one_element_ref, generate_element_copy,
	generate_element_zero, scalarize_copy, scalarize_init,
	scalarize_ldst): Likewise.
	* tree-ssa-alias.c (delete_alias_info, group_aliases, may_alias_p,
	add_may_alias, add_pointed_to_expr, add_pointed_to_var,
	collect_points_to_info_r, get_tmt_for, get_ptr_info): Likewise.
	* tree-ssa.c (walk_use_def_chains, check_phi_redundancy): Likewise.
	* tree-ssa-ccp.c (dump_lattice_value, get_default_value, get_value,
	set_lattice_value, likely_value, ccp_visit_phi_node, visit_assignment,
	widen_bitfield, ccp_fold_builtin): Likewise.
	* tree-ssa-copy.c (may_propagate_copy, merge_alias_info,
	replace_exp_1, propagate_tree_value): Likewise.
	* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Likewise.
	* tree-ssa-dce.c (set_control_dependence_map_bit,
	find_control_dependence, find_pdom, mark_operand_necessary,
	mark_stmt_if_obviously_necessary,
	mark_control_dependent_edges_necessary, remove_dead_stmt): Likewise.
	* tree-ssa-dom.c (dom_opt_initialize_block_local_data,
	simplify_switch_and_lookup_avail_expr, cprop_into_successor_phis,
	eliminate_redundant_computations, avail_expr_eq): Likewise.
	* tree-ssa-dse.c (fix_stmt_v_may_defs): Likewise.
	* tree-ssa-loop-ch.c (should_duplicate_loop_header_p,
	duplicate_blocks): Likewise.
	* tree-ssa-loop-im.c (for_each_index, set_level,
	is_call_clobbered_ref): Likewise.
	* tree-ssa-loop-ivopts.c (dump_use, divide, stmt_after_ip_normal_pos,
	stmt_after_increment, set_iv, contains_abnormal_ssa_name_p,
	find_interesting_uses_outer_or_nonlin, add_derived_ivs_candidates,
	peel_address, ptr_difference_cost, may_replace_final_value,
	determine_use_iv_cost, rewrite_use_nonlinear_expr, rewrite_use_outer,
	rewrite_use, rewrite_uses): Likewise.
	* tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa,
	check_loop_closed_ssa_use): Likewise.
	* tree-ssanames.c (make_ssa_name): Likewise.
	* tree-ssa-operands.c (finalize_ssa_defs, finalize_ssa_uses,
	finalize_ssa_v_must_defs, finalize_ssa_stmt_operands,
	get_stmt_operands, get_expr_operands, get_asm_expr_operands,
	get_indirect_ref_operands, add_stmt_operand): Likewise.
	* tree-ssa-pre.c (value_exists_in_set_bitmap,
	value_remove_from_set_bitmap, bitmap_insert_into_set, insert_into_set,
	phi_translate, valid_in_set, compute_antic,
	find_or_generate_expression, create_expression_by_pieces, insert_aux,
	create_value_expr_from, eliminate): Likewise.
	* tree-ssa-propagate.c (cfg_blocks_get): Likewise.
	* tree-ssa-threadupdate.c (remove_last_stmt_and_useless_edges):
	Likewise.
	* tree-tailcall.c (independent_of_stmt_p, adjust_return_value,
	eliminate_tail_call): Likewise.
	* tree-vectorizer.c (vect_create_index_for_array_ref,
	vect_align_data_ref, vect_create_data_ref,
	vect_create_destination_var, vect_get_vec_def_for_operand,
	vect_finish_stmt_generation, vect_transform_stmt,
	vect_transform_loop_bound, vect_transform_loop,
	vect_analyze_operations): Likewise.
	* tree-vn.c (vn_compute, set_value_handle, get_value_handle):
	Likewise.
	* tree-flow-inline.h (var_ann, get_var_ann, get_def_from_ptr,
	get_use_op_ptr, immediate_use, phi_ssa_name_p, bsi_start,
	bsi_after_labels, bsi_last): Likewise.
	* tree-ssa-live.c (var_union, change_partition_var,
	create_ssa_var_map, calculate_live_on_entry, root_var_init,
	type_var_init, add_coalesce, sort_coalesce_list, pop_best_coalesce):
	Likewise.
	* tree-ssa-live.h (partition_is_global, live_entry_blocks,
	tpa_find_tree): Likewise.
	(register_ssa_partition_check): Declare.
	(register_ssa_partition): use it.
	* tree-ssa-live.c: Include errors.h.
	(register_ssa_partition_check): New.
	* tree-ssa-operands.c: Include errors.h.
	* Makefile.in (tree-ssa-operands.o): Depend on errors.h.

Co-Authored-By: Nathan Sidwell <nathan@codesourcery.com>

From-SVN: r87223

1 files changed, 23 insertions, 42 deletions

diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index ec12f62c008..b3227555f22 100644
--- a/gcc/tree-ssa-pre.c
+++ b/gcc/tree-ssa-pre.c
@@ -444,10 +444,7 @@ value_exists_in_set_bitmap (value_set_t set, tree v)
 static void
 value_remove_from_set_bitmap (value_set_t set, tree v)
 {
-#ifdef ENABLE_CHECKING
-  if (!set->indexed)
-    abort ();
-#endif
+  gcc_assert (set->indexed);
 
   if (!set->values)
     return;
@@ -462,10 +459,7 @@ value_remove_from_set_bitmap (value_set_t set, tree v)
 static inline void
 value_insert_into_set_bitmap (value_set_t set, tree v)
 {
-#ifdef ENABLE_CHECKING
-  if (!set->indexed)
-    abort ();
-#endif
+  gcc_assert (set->indexed);
 
   if (set->values == NULL)
     {
@@ -511,12 +505,10 @@ bitmap_insert_into_set (bitmap_set_t set, tree expr)
 {
   tree val;
   /* XXX: For now, we only let SSA_NAMES into the bitmap sets.  */
-  if (TREE_CODE (expr) != SSA_NAME)
-    abort ();
+  gcc_assert (TREE_CODE (expr) == SSA_NAME);
   val = get_value_handle (expr);
   
-  if (val == NULL)
-    abort ();
+  gcc_assert (val);
   if (!is_gimple_min_invariant (val))
     bitmap_set_bit (set->values, VALUE_HANDLE_ID (val));
   bitmap_set_bit (set->expressions, SSA_NAME_VERSION (expr));
@@ -529,9 +521,7 @@ insert_into_set (value_set_t set, tree expr)
 {
   value_set_node_t newnode = pool_alloc (value_set_node_pool);
   tree val = get_value_handle (expr);
-  
-  if (val == NULL)
-    abort ();
+  gcc_assert (val);
 
   /* For indexed sets, insert the value into the set value bitmap.
      For all sets, add it to the linked list and increment the list
@@ -923,13 +913,12 @@ phi_translate (tree expr, value_set_t set, basic_block pred,
       }
       break;
     case 'd':
-      abort ();
+      gcc_unreachable ();
     case 'x':
       {
 	tree phi = NULL;
 	int i;
-	if (TREE_CODE (expr) != SSA_NAME)
-	  abort ();
+	gcc_assert (TREE_CODE (expr) == SSA_NAME);
 	if (TREE_CODE (SSA_NAME_DEF_STMT (expr)) == PHI_NODE)
 	  phi = SSA_NAME_DEF_STMT (expr);
 	else
@@ -1078,12 +1067,11 @@ valid_in_set (value_set_t set, tree expr)
       }
     case 'x':
       {
-	if (TREE_CODE (expr) == SSA_NAME)
-	  return true;
-	abort ();
+	gcc_assert (TREE_CODE (expr) == SSA_NAME);
+	return true;
       }
     case 'c':
-      abort ();
+      gcc_unreachable ();
     }
   return false;
 }
@@ -1258,8 +1246,7 @@ compute_antic (void)
   FOR_ALL_BB (bb)
     {
       ANTIC_IN (bb) = set_new (true);
-      if (bb->flags & BB_VISITED)
-	abort ();
+      gcc_assert (!(bb->flags & BB_VISITED));
     }
 
   while (changed)
@@ -1304,10 +1291,9 @@ find_or_generate_expression (basic_block block, tree expr, tree stmts)
   if (genop == NULL)
     {
       genop = VALUE_HANDLE_EXPR_SET (expr)->head->expr;
-      if (TREE_CODE_CLASS (TREE_CODE (genop)) != '1'
-	  && TREE_CODE_CLASS (TREE_CODE (genop)) != '2'
-	  && TREE_CODE_CLASS (TREE_CODE (genop)) != 'r')
-	abort ();
+      gcc_assert (TREE_CODE_CLASS (TREE_CODE (genop)) == '1'
+		  || TREE_CODE_CLASS (TREE_CODE (genop)) == '2'
+		  || TREE_CODE_CLASS (TREE_CODE (genop)) == 'r');
       genop = create_expression_by_pieces (block, genop, stmts);
     }
   return genop;
@@ -1381,7 +1367,7 @@ create_expression_by_pieces (basic_block block, tree expr, tree stmts)
 	break;
       }
     default:
-      abort ();
+      gcc_unreachable ();
       
     }
   v = get_value_handle (expr);
@@ -1497,8 +1483,7 @@ insert_aux (basic_block block)
 			    }
 
 			  vprime = get_value_handle (eprime);
-			  if (!vprime)
-			    abort ();			  
+			  gcc_assert (vprime);
 			  edoubleprime = bitmap_find_leader (AVAIL_OUT (bprime),
 							     vprime);
 			  if (edoubleprime == NULL)
@@ -1514,9 +1499,9 @@ insert_aux (basic_block block)
 				first_s = edoubleprime;
 			      else if (first_s != edoubleprime)
 				all_same = false;
-			      if (first_s != edoubleprime 
-				  && operand_equal_p (first_s, edoubleprime, 0))
-				abort ();
+			      gcc_assert (first_s == edoubleprime 
+					  || !operand_equal_p
+					      (first_s, edoubleprime, 0));
 			    }
 			}
 		      /* If we can insert it, it's not the same value
@@ -1683,12 +1668,9 @@ create_value_expr_from (tree expr, basic_block block, vuse_optype vuses)
   enum tree_code code = TREE_CODE (expr);
   tree vexpr;
 
-#if defined ENABLE_CHECKING
-  if (TREE_CODE_CLASS (code) != '1'
-      && TREE_CODE_CLASS (code) != '2'
-      && TREE_CODE_CLASS (code) != 'r')
-    abort ();
-#endif
+  gcc_assert (TREE_CODE_CLASS (code) == '1'
+	      || TREE_CODE_CLASS (code) == '2'
+	      || TREE_CODE_CLASS (code) == 'r');
 
   if (TREE_CODE_CLASS (code) == '1')
     vexpr = pool_alloc (unary_node_pool);
@@ -1887,8 +1869,7 @@ eliminate (void)
 		  && (TREE_CODE (*rhs_p) != SSA_NAME
 		      || may_propagate_copy (*rhs_p, sprime)))
 		{
-		  if (sprime == *rhs_p)
-		    abort ();
+		  gcc_assert (sprime != *rhs_p);
 
 		  if (dump_file && (dump_flags & TDF_DETAILS))
 		    {