* dbxout.c (dbxout_type, dbxout_type_name, dbxout_symbol): Use

	gcc_assert and gcc_unreachable.
	* ddg.c (create_ddg_dependence, add_deps_for_def,
	add_deps_for_use, create_ddg, add_edge_to_ddg): Likewise.
	* df.c (df_ref_unlink, df_ref_record, df_uses_record,
	df_reg_def_chain_create, df_reg_use_chain_create, df_analyze,
	df_insn_delete, df_refs_reg_replace, df_ref_reg_replace,
	df_insns_modify, df_pattern_emit_before, df_bb_reg_live_start_p,
	df_bb_reg_live_end_p, df_bb_regs_lives_compare,
	df_bb_single_def_use_insn_find, dataflow_set_a_op_b,
	dataflow_set_copy, hybrid_search, diagnostic.c,
	diagnostic_build_prefix, diagnostic_count_diagnostic): Likewise.
	* dojump.c (do_jump): Likewise.
	* dominance.c (calc_dfs_tree_nonrec, calc_dfs_tree,
	compute_dom_fast_query, calculate_dominance_info,
	free_dominance_info, get_immediate_dominator,
	set_immediate_dominator, get_dominated_by,
	redirect_immediate_dominators, nearest_common_dominator,
	dominated_by_p, verify_dominators, recount_dominator,
	iterate_fix_dominators, add_to_dominance_info,
	delete_from_dominance_info): Likewise.
	* dwarf2asm.c (size_of_encoded_value, eh_data_format_name,
	dw2_asm_output_delta_uleb128, dw2_asm_output_delta_sleb128,
	dw2_force_const_mem, dw2_asm_output_encoded_addr_rtx): Likewise.
	* dwarf2out.c (expand_builtin_init_dwarf_reg_sizes, reg_save,
	initial_return_save, stack_adjust_offset, dwarf2out_stack_adjust,
	flush_queued_reg_saves, dwarf2out_frame_debug_expr,
	dwarf2out_frame_debug, dw_cfi_oprnd1_desc, output_cfi,
	output_call_frame_info, output_loc_operands, build_cfa_loc,
	decl_ultimate_origin, AT_flag, AT_int, AT_unsigned, AT_string,
	AT_string_form, add_AT_specification, AT_ref, set_AT_ref_external,
	AT_loc, AT_loc_list, AT_addr, AT_lbl, add_child_die,
	splice_child_die, attr_checksum, same_dw_val_p,
	break_out_includes, build_abbrev_table, size_of_die, mark_dies,
	unmark_dies, value_format, output_loc_list, output_die,
	output_pubnames, output_aranges, base_type_die, is_base_type,
	modified_type_die, dbx_reg_number, multiple_reg_loc_descriptor,
	mem_loc_descriptor, loc_descriptor, loc_descriptor_from_tree_1,
	field_byte_offset, add_data_member_location_attribute,
	add_const_value_attribute, rtl_for_decl_location,
	add_location_or_const_value_attribute, add_byte_size_attribute,
	add_bit_offset_attribute, add_bit_size_attribute,
	add_abstract_origin_attribute, pop_decl_scope, scope_die_for,
	decl_start_label, gen_formal_parameter_die,
	gen_type_die_for_member, gen_subprogram_die, gen_label_die,
	gen_typedef_die, gen_type_die, gen_tagged_type_instantiation_die,
	force_decl_die, force_type_die, gen_decl_die,
	dwarf2out_imported_module_or_decl, prune_unused_types_prune,
	dwarf2out_finish): Likewise.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@87176 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 14 insertions, 15 deletions

diff --git a/gcc/dbxout.c b/gcc/dbxout.c
index f6948a0bd72..110ed6b3543 100644
--- a/gcc/dbxout.c
+++ b/gcc/dbxout.c
@@ -1683,8 +1683,7 @@ dbxout_type (tree type, int full)
 	    /* We shouldn't be outputting a reference to a type before its
 	       definition unless the type has a tag name.
 	       A typedef name without a tag name should be impossible.  */
-	    if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE)
-	      abort ();
+	    gcc_assert (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE);
 #endif
 	    if (TYPE_NAME (type) != 0)
 	      dbxout_type_name (type);
@@ -1919,7 +1918,7 @@ dbxout_type (tree type, int full)
       break;
 
     default:
-      abort ();
+      gcc_unreachable ();
     }
 }
 
@@ -2040,19 +2039,19 @@ print_wide_int (HOST_WIDE_INT c)
 static void
 dbxout_type_name (tree type)
 {
-  tree t;
-  if (TYPE_NAME (type) == 0)
-    abort ();
-  if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
-    {
-      t = TYPE_NAME (type);
-    }
-  else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
+  tree t = TYPE_NAME (type);
+  
+  gcc_assert (t);
+  switch (TREE_CODE (t))
     {
-      t = DECL_NAME (TYPE_NAME (type));
+    case IDENTIFIER_NODE:
+      break;
+    case TYPE_DECL:
+      t = DECL_NAME (t);
+      break;
+    default:
+      gcc_unreachable ();
     }
-  else
-    abort ();
 
   fprintf (asmfile, "%s", IDENTIFIER_POINTER (t));
   CHARS (IDENTIFIER_LENGTH (t));
@@ -2386,7 +2385,7 @@ dbxout_symbol (tree decl, int local ATTRIBUTE_UNUSED)
     case PARM_DECL:
       /* Parm decls go in their own separate chains
 	 and are output by dbxout_reg_parms and dbxout_parms.  */
-      abort ();
+      gcc_unreachable ();
 
     case RESULT_DECL:
       /* Named return value, treat like a VAR_DECL.  */