Clear out unused ID_gcc_attribute

Author: tautschnig

src/ansi-c/ansi_c_convert_type.cpp

@@ -116,9 +116,6 @@ void ansi_c_convert_typet::read_rec(const typet &type)
   {
     gcc_attribute_mode=type;
   }
-  else if(type.id()==ID_gcc_attribute)
-  {
-  }
   else if(type.id()==ID_msc_based)
   {
     const exprt &as_expr=static_cast<const exprt &>(static_cast<const irept &>(type));

src/ansi-c/parser.y

@@ -1476,27 +1476,6 @@ aggregate_key:
         | TOK_UNION
         { $$=$1; set($$, ID_union); }
         ;
-        
-gcc_attribute_expression_list:
-          assignment_expression
-        {
-          init($$, ID_expression_list);
-          mto($$, $1);
-        }
-        | gcc_attribute_expression_list ',' assignment_expression
-        {
-          $$=$1;
-          mto($$, $3);
-        }
-        ;
-
-gcc_attribute_expression_list_opt:
-          /* empty */
-        {
-          init($$, ID_expression_list);
-        }
-        | gcc_attribute_expression_list
-        ;
 
 gcc_type_attribute:
           TOK_GCC_ATTRIBUTE_PACKED
@@ -1532,23 +1511,6 @@ gcc_attribute:
         {
           init($$);
         }
-        | TOK_CONST
-        {
-          $$=$1;
-          stack($$).id(ID_gcc_attribute);
-          stack($$).set(ID_identifier, ID_const);
-        }
-        | identifier
-        {
-          $$=$1;
-          stack($$).id(ID_gcc_attribute);
-        }
-        | identifier '(' gcc_attribute_expression_list_opt ')'
-        {
-          $$=$1;
-          stack($$).id(ID_gcc_attribute);
-          stack($$).operands().swap(stack($3).operands());
-        }
         | gcc_type_attribute
         ;
 

src/util/irep_ids.txt

@@ -529,7 +529,6 @@ explicit
 storage_spec
 member_spec
 msc_declspec
-gcc_attribute
 packed
 C_packed #packed
 transparent_union