Define go_unreachable to replace gcc_unreachable.

From Evan Shaw.

From-SVN: r172882

gcc/go/gofrontend/README

@@ -24,8 +24,6 @@ Issues to be faced in this transition:
     features such as %<%> for appropriate quoting.
   + Localization may be an issue.
 
-* Use of gcc_unreachable.
-
 This compiler works, but the code is a work in progress.  Notably, the
 support for garbage collection is ineffective and needs a complete
 rethinking.  The frontend pays little attention to its memory usage

gcc/go/gofrontend/dataflow.cc

@@ -201,7 +201,7 @@ Dataflow::Compare_vars::operator()(const Named_object* no1,
 
   // We can't have two variables with the same name in the same
   // location.
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Class Dataflow.

gcc/go/gofrontend/expressions.h

@@ -877,15 +877,15 @@ class Parser_expression : public Expression
 
   void
   do_determine_type(const Type_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   void
   do_check_types(Gogo*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   tree
   do_get_tree(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 };
 
 // An expression which is simply a variable.

gcc/go/gofrontend/gogo-tree.cc

@@ -972,7 +972,7 @@ Named_object::get_tree(Gogo* gogo, Named_object* function)
     case NAMED_OBJECT_VAR:
     case NAMED_OBJECT_RESULT_VAR:
     case NAMED_OBJECT_SINK:
-      gcc_unreachable();
+      go_unreachable();
 
     case NAMED_OBJECT_FUNC:
       {
@@ -1005,7 +1005,7 @@ Named_object::get_tree(Gogo* gogo, Named_object* function)
       break;
 
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 
   if (TREE_TYPE(decl) == error_mark_node)
@@ -2424,7 +2424,7 @@ Gogo::interface_method_table_for_type(const Interface_type* interface,
 	fndecl = no->func_declaration_value()->get_or_make_decl(this, no,
 								fnid);
       else
-	gcc_unreachable();
+	go_unreachable();
       fndecl = build_fold_addr_expr(fndecl);
 
       elt = VEC_quick_push(constructor_elt, pointers, NULL);

gcc/go/gofrontend/gogo.cc

@@ -748,7 +748,7 @@ Gogo::start_function(const std::string& name, Function_type* type,
 								  function);
 	    }
 	  else
-	    gcc_unreachable();
+	    go_unreachable();
 	}
       this->package_->bindings()->add_method(ret);
     }
@@ -849,7 +849,7 @@ Gogo::declare_function(const std::string& name, Function_type* type,
 	  return ftype->add_method_declaration(name, type, location);
 	}
       else
-	gcc_unreachable();
+	go_unreachable();
     }
 }
 
@@ -3211,7 +3211,7 @@ Block::traverse(Traverse* traverse)
 	    case Named_object::NAMED_OBJECT_FUNC:
 	    case Named_object::NAMED_OBJECT_FUNC_DECLARATION:
 	      // FIXME: Where will nested functions be found?
-	      gcc_unreachable();
+	      go_unreachable();
 
 	    case Named_object::NAMED_OBJECT_TYPE:
 	      if ((traverse_mask & Traverse::traverse_types) != 0
@@ -3229,10 +3229,10 @@ Block::traverse(Traverse* traverse)
 
 	    case Named_object::NAMED_OBJECT_PACKAGE:
 	    case Named_object::NAMED_OBJECT_SINK:
-	      gcc_unreachable();
+	      go_unreachable();
 
 	    default:
-	      gcc_unreachable();
+	      go_unreachable();
 	    }
 	}
     }
@@ -4109,7 +4109,7 @@ Named_object::location() const
     {
     default:
     case NAMED_OBJECT_UNINITIALIZED:
-      gcc_unreachable();
+      go_unreachable();
 
     case NAMED_OBJECT_UNKNOWN:
       return this->unknown_value()->location();
@@ -4130,7 +4130,7 @@ Named_object::location() const
       return this->result_var_value()->location();
 
     case NAMED_OBJECT_SINK:
-      gcc_unreachable();
+      go_unreachable();
 
     case NAMED_OBJECT_FUNC:
       return this->func_value()->location();
@@ -4153,7 +4153,7 @@ Named_object::export_named_object(Export* exp) const
     default:
     case NAMED_OBJECT_UNINITIALIZED:
     case NAMED_OBJECT_UNKNOWN:
-      gcc_unreachable();
+      go_unreachable();
 
     case NAMED_OBJECT_CONST:
       this->const_value()->export_const(exp, this->name_);
@@ -4179,7 +4179,7 @@ Named_object::export_named_object(Export* exp) const
 
     case NAMED_OBJECT_RESULT_VAR:
     case NAMED_OBJECT_SINK:
-      gcc_unreachable();
+      go_unreachable();
 
     case NAMED_OBJECT_FUNC:
       this->func_value()->export_func(exp, this->name_);
@@ -4199,7 +4199,7 @@ Named_object::get_backend_variable(Gogo* gogo, Named_object* function)
     return this->result_var_value()->get_backend_variable(gogo, function,
 							  this->name_);
   else
-    gcc_unreachable();
+    go_unreachable();
 }
 
 // Class Bindings.
@@ -4280,7 +4280,7 @@ Bindings::remove_binding(Named_object* no)
 	  return;
 	}
     }
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Add a method to the list of objects.  This is not added to the
@@ -4346,7 +4346,7 @@ Bindings::new_definition(Named_object* old_object, Named_object* new_object)
     {
     default:
     case Named_object::NAMED_OBJECT_UNINITIALIZED:
-      gcc_unreachable();
+      go_unreachable();
 
     case Named_object::NAMED_OBJECT_UNKNOWN:
       {
@@ -4386,7 +4386,7 @@ Bindings::new_definition(Named_object* old_object, Named_object* new_object)
       break;
 
     case Named_object::NAMED_OBJECT_SINK:
-      gcc_unreachable();
+      go_unreachable();
 
     case Named_object::NAMED_OBJECT_FUNC:
       if (new_object->is_function_declaration())
@@ -4595,7 +4595,7 @@ Bindings::traverse(Traverse* traverse, bool is_global)
 
 	case Named_object::NAMED_OBJECT_SINK:
 	default:
-	  gcc_unreachable();
+	  go_unreachable();
 	}
     }
 
@@ -4756,41 +4756,41 @@ Traverse::remember_expression(const Expression* expression)
 int
 Traverse::variable(Named_object*)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 int
 Traverse::constant(Named_object*, bool)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 int
 Traverse::function(Named_object*)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 int
 Traverse::block(Block*)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 int
 Traverse::statement(Block*, size_t*, Statement*)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 int
 Traverse::expression(Expression**)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 int
 Traverse::type(Type*)
 {
-  gcc_unreachable();
+  go_unreachable();
 }

gcc/go/gofrontend/lex.cc

@@ -198,7 +198,7 @@ Token::Token(const Token& tok)
       mpfr_init_set(this->u_.float_value, tok.u_.float_value, GMP_RNDN);
       break;
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 }
 
@@ -237,7 +237,7 @@ Token::operator=(const Token& tok)
       mpfr_init_set(this->u_.float_value, tok.u_.float_value, GMP_RNDN);
       break;
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
   return *this;
 }
@@ -422,11 +422,11 @@ Token::print(FILE* file) const
 	  fprintf(file, "]");
 	  break;
 	default:
-	  gcc_unreachable();
+	  go_unreachable();
 	}
       break;
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 }
 

gcc/go/gofrontend/parse.cc

@@ -35,7 +35,7 @@ Parse::Enclosing_var_comparison::operator()(const Enclosing_var& v1,
   // If we get here it means that a single nested function refers to
   // two different variables defined in enclosing functions, and both
   // variables have the same name.  I think this is impossible.
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Class Parse.
@@ -362,7 +362,7 @@ Parse::type_name(bool issue_error)
   else if (named_object->is_unknown() || named_object->is_type_declaration())
     return Type::make_forward_declaration(named_object);
   else
-    gcc_unreachable();
+    go_unreachable();
 }
 
 // ArrayType = "[" [ ArrayLength ] "]" ElementType .
@@ -2323,10 +2323,10 @@ Parse::operand(bool may_be_sink)
 	  case Named_object::NAMED_OBJECT_UNKNOWN:
 	    return Expression::make_unknown_reference(named_object, location);
 	  default:
-	    gcc_unreachable();
+	    go_unreachable();
 	  }
       }
-      gcc_unreachable();
+      go_unreachable();
 
     case Token::TOKEN_STRING:
       ret = Expression::make_string(token->string_value(), token->location());
@@ -3068,7 +3068,7 @@ Parse::expression_may_start_here()
     case Token::TOKEN_IMAGINARY:
       return true;
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 }
 
@@ -3493,7 +3493,7 @@ Parse::inc_dec_stat(Expression* exp)
   else if (token->is_op(OPERATOR_MINUSMINUS))
     this->gogo_->add_statement(Statement::make_dec_statement(exp));
   else
-    gcc_unreachable();
+    go_unreachable();
   this->advance_token();
 }
 
@@ -4858,7 +4858,7 @@ Parse::break_stat()
   else if (enclosing->classification() == Statement::STATEMENT_SELECT)
     label = enclosing->select_statement()->break_label();
   else
-    gcc_unreachable();
+    go_unreachable();
 
   this->gogo_->add_statement(Statement::make_break_statement(label,
 							     location));
@@ -4907,7 +4907,7 @@ Parse::continue_stat()
   else if (enclosing->classification() == Statement::STATEMENT_FOR_RANGE)
     label = enclosing->for_range_statement()->continue_label();
   else
-    gcc_unreachable();
+    go_unreachable();
 
   this->gogo_->add_statement(Statement::make_continue_statement(label,
 								location));

gcc/go/gofrontend/runtime.cc

@@ -86,7 +86,7 @@ runtime_function_type(Runtime_function_type bft)
 	{
 	default:
 	case RFT_VOID:
-	  gcc_unreachable();
+	  go_unreachable();
 
 	case RFT_BOOL:
 	  t = Type::lookup_bool_type();
@@ -193,7 +193,7 @@ convert_to_runtime_function_type(Runtime_function_type bft, Expression* e,
     {
     default:
     case RFT_VOID:
-      gcc_unreachable();
+      go_unreachable();
 
     case RFT_BOOL:
     case RFT_BOOLPTR:

gcc/go/gofrontend/statements.cc

@@ -177,7 +177,7 @@ class Error_statement : public Statement
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 };
 
 // Make an error statement.
@@ -595,14 +595,14 @@ class Assignment_operation_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // The operator (OPERATOR_PLUSEQ, etc.).
@@ -677,7 +677,7 @@ Assignment_operation_statement::do_lower(Gogo*, Named_object*,
       op = OPERATOR_BITCLEAR;
       break;
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 
   Expression* binop = Expression::make_binary(op, lval, this->rhs_, loc);
@@ -722,14 +722,14 @@ class Tuple_assignment_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // Left hand side--a list of lvalues.
@@ -849,14 +849,14 @@ public:
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // Lvalue which receives the value from the map.
@@ -976,14 +976,14 @@ class Map_assignment_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // A reference to the map index which should be set or deleted.
@@ -1090,14 +1090,14 @@ class Tuple_receive_assignment_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // Lvalue which receives the value from the channel.
@@ -1214,14 +1214,14 @@ class Tuple_type_guard_assignment_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   Call_expression*
@@ -1510,14 +1510,14 @@ class Inc_dec_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // The l-value to increment or decrement.
@@ -1830,7 +1830,7 @@ Thunk_statement::simplify_statement(Gogo* gogo, Named_object* function,
       vals->push_back(first_arg);
     }
   else
-    gcc_unreachable();
+    go_unreachable();
 
   if (ce->args() != NULL)
     {
@@ -1866,7 +1866,7 @@ Thunk_statement::simplify_statement(Gogo* gogo, Named_object* function,
   else if (this->classification() == STATEMENT_DEFER)
     s = Statement::make_defer_statement(call, location);
   else
-    gcc_unreachable();
+    go_unreachable();
 
   // The current block should end with the go statement.
   go_assert(block->statements()->size() >= 1);
@@ -2750,7 +2750,7 @@ Case_clauses::Hash_integer_value::operator()(Expression* pe) const
   mpz_t ival;
   mpz_init(ival);
   if (!pe->integer_constant_value(true, ival, &itype))
-    gcc_unreachable();
+    go_unreachable();
   size_t ret = mpz_get_ui(ival);
   mpz_clear(ival);
   return ret;
@@ -2776,7 +2776,7 @@ Case_clauses::Eq_integer_value::operator()(Expression* a, Expression* b) const
   mpz_init(bval);
   if (!a->integer_constant_value(true, aval, &atype)
       || !b->integer_constant_value(true, bval, &btype))
-    gcc_unreachable();
+    go_unreachable();
   bool ret = mpz_cmp(aval, bval) == 0;
   mpz_clear(aval);
   mpz_clear(bval);
@@ -4597,7 +4597,7 @@ For_range_statement::do_lower(Gogo* gogo, Named_object*, Block* enclosing)
 			      index_temp, value_temp, &init, &cond, &iter_init,
 			      &post);
   else
-    gcc_unreachable();
+    go_unreachable();
 
   if (iter_init != NULL)
     body->add_statement(Statement::make_block_statement(iter_init, loc));

gcc/go/gofrontend/statements.h

@@ -990,14 +990,14 @@ class For_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // The initialization statements.  This may be NULL.
@@ -1048,14 +1048,14 @@ class For_range_statement : public Statement
 
   bool
   do_traverse_assignments(Traverse_assignments*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Statement*
   do_lower(Gogo*, Named_object*, Block*);
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   Expression*
@@ -1284,7 +1284,7 @@ class Switch_statement : public Statement
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // The value to switch on.  This may be NULL.
@@ -1430,7 +1430,7 @@ class Type_switch_statement : public Statement
 
   Bstatement*
   do_get_backend(Translate_context*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
  private:
   // The variable holding the value we are switching on.

gcc/go/gofrontend/types.cc

@@ -157,7 +157,7 @@ Type::is_basic_type() const
       return this->base()->is_basic_type();
 
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 }
 
@@ -202,7 +202,7 @@ Type::make_non_abstract_type()
     case TYPE_BOOLEAN:
       return Type::lookup_bool_type();
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 }
 
@@ -407,7 +407,7 @@ Type::are_identical(const Type* t1, const Type* t2, bool errors_are_identical,
       return false;
 
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 }
 
@@ -774,7 +774,7 @@ Type::hash_string(const std::string& s, unsigned int h)
 bool
 Type::do_check_make_expression(Expression_list*, source_location)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Return whether an expression has an integer value.  Report an error
@@ -929,7 +929,7 @@ tree
 Type::do_make_expression_tree(Translate_context*, Expression_list*,
 			      source_location)
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Return a pointer to the type descriptor for this type.
@@ -1194,10 +1194,10 @@ Type::type_functions(const char** hash_fn, const char** equal_fn) const
 
     case Type::TYPE_NAMED:
     case Type::TYPE_FORWARD:
-      gcc_unreachable();
+      go_unreachable();
 
     default:
-      gcc_unreachable();
+      go_unreachable();
     }
 }
 
@@ -1543,7 +1543,7 @@ Type::mangled_name(Gogo* gogo) const
 void
 Type::do_export(Export*) const
 {
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Import a type.
@@ -1627,11 +1627,11 @@ class Void_type : public Type
 
   tree
   do_get_init_tree(Gogo*, tree, bool)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Expression*
   do_type_descriptor(Gogo*, Named_type*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   void
   do_reflection(Gogo*, std::string*) const
@@ -2363,23 +2363,23 @@ class Sink_type : public Type
  protected:
   tree
   do_get_tree(Gogo*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   tree
   do_get_init_tree(Gogo*, tree, bool)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   Expression*
   do_type_descriptor(Gogo*, Named_type*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   void
   do_reflection(Gogo*, std::string*) const
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   void
   do_mangled_name(Gogo*, std::string*) const
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 };
 
 // Make the sink type.
@@ -3298,11 +3298,11 @@ class Nil_type : public Type
 
   Expression*
   do_type_descriptor(Gogo*, Named_type*)
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   void
   do_reflection(Gogo*, std::string*) const
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   void
   do_mangled_name(Gogo*, std::string* ret) const
@@ -3434,7 +3434,7 @@ Struct_field::field_name() const
 	  else if (t->named_type() != NULL)
 	    return t->named_type()->name();
 	  else
-	    gcc_unreachable();
+	    go_unreachable();
 	}
     }
 }
@@ -5837,7 +5837,7 @@ Interface_type::method_index(const std::string& name) const
        ++p, ++ret)
     if (p->name() == name)
       return ret;
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Return whether NAME is an unexported method, for better error
@@ -6621,7 +6621,7 @@ Named_method::do_type() const
   else if (this->named_object_->is_function_declaration())
     return this->named_object_->func_declaration_value()->type();
   else
-    gcc_unreachable();
+    go_unreachable();
 }
 
 // Return the location of the method receiver.
@@ -7024,7 +7024,7 @@ Find_type_use::type(Type* type)
 	case Type::TYPE_NAMED:
 	case Type::TYPE_FORWARD:
 	default:
-	  gcc_unreachable();
+	  go_unreachable();
 	}
     }
 
@@ -7190,7 +7190,7 @@ Named_type::convert(Gogo* gogo)
     case TYPE_CALL_MULTIPLE_RESULT:
     case TYPE_NAMED:
     case TYPE_FORWARD:
-      gcc_unreachable();
+      go_unreachable();
     }
 
   this->named_tree_ = t;
@@ -7294,7 +7294,7 @@ Named_type::create_placeholder(Gogo* gogo)
     case TYPE_CALL_MULTIPLE_RESULT:
     case TYPE_NAMED:
     case TYPE_FORWARD:
-      gcc_unreachable();
+      go_unreachable();
     }
 
   // Create the named type.
@@ -7424,10 +7424,10 @@ Named_type::do_get_tree(Gogo* gogo)
     case TYPE_CALL_MULTIPLE_RESULT:
     case TYPE_NAMED:
     case TYPE_FORWARD:
-      gcc_unreachable();
+      go_unreachable();
     }
 
-  gcc_unreachable();
+  go_unreachable();
 }
 
 // Build a type descriptor for a named type.
@@ -7964,7 +7964,7 @@ Type::method_expects_pointer(const Named_object* no)
   else if (no->is_function_declaration())
     fntype = no->func_declaration_value()->type();
   else
-    gcc_unreachable();
+    go_unreachable();
   return fntype->receiver()->type()->points_to() != NULL;
 }
 
@@ -8061,7 +8061,7 @@ Type::bind_field_or_method(Gogo* gogo, const Type* type, Expression* expr,
 	  else if (st != NULL)
 	    m = st->method_function(name, NULL);
 	  else
-	    gcc_unreachable();
+	    go_unreachable();
 	  go_assert(m != NULL);
 	  if (!m->is_value_method() && expr->type()->points_to() == NULL)
 	    expr = Expression::make_unary(OPERATOR_AND, expr, location);

gcc/go/gofrontend/types.h

@@ -272,7 +272,7 @@ class Interface_method : public Method
   // called, as we always create a stub.
   Named_object*
   do_named_object() const
-  { gcc_unreachable(); }
+  { go_unreachable(); }
 
   // The type of the method.
   Function_type*