/msp430-gcc-3.2.3/gcc-3.2.3/gcc/c-parse.y

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/*WARNING: This file is automatically generated!*/
/* YACC parser for C syntax and for Objective C.  -*-c-*-
   Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996,
   1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING.  If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.  */

/* This file defines the grammar of C and that of Objective C.
   ifobjc ... end ifobjc  conditionals contain code for Objective C only.
   ifc ... end ifc  conditionals contain code for C only.
   Sed commands in Makefile.in are used to convert this file into
   c-parse.y and into objc-parse.y.  */

/* To whomever it may concern: I have heard that such a thing was once
   written by AT&T, but I have never seen it.  */

%expect 10 /* shift/reduce conflicts, and no reduce/reduce conflicts.  */

%{
#include "config.h"
#include "system.h"
#include "tree.h"
#include "input.h"
#include "cpplib.h"
#include "intl.h"
#include "timevar.h"
#include "c-lex.h"
#include "c-tree.h"
#include "c-pragma.h"
#include "flags.h"
#include "output.h"
#include "toplev.h"
#include "ggc.h"
  
#ifdef MULTIBYTE_CHARS
#include <locale.h>
#endif


/* Like YYERROR but do call yyerror.  */
#define YYERROR1 { yyerror ("syntax error"); YYERROR; }

/* Cause the "yydebug" variable to be defined.  */
#define YYDEBUG 1

/* Rename the "yyparse" function so that we can override it elsewhere.  */
#define yyparse yyparse_1
%}

%start program

%union {long itype; tree ttype; enum tree_code code;
	const char *filename; int lineno; }

/* All identifiers that are not reserved words
   and are not declared typedefs in the current block */
%token IDENTIFIER

/* All identifiers that are declared typedefs in the current block.
   In some contexts, they are treated just like IDENTIFIER,
   but they can also serve as typespecs in declarations.  */
%token TYPENAME

/* Reserved words that specify storage class.
   yylval contains an IDENTIFIER_NODE which indicates which one.  */
%token SCSPEC

/* Reserved words that specify type.
   yylval contains an IDENTIFIER_NODE which indicates which one.  */
%token TYPESPEC

/* Reserved words that qualify type: "const", "volatile", or "restrict".
   yylval contains an IDENTIFIER_NODE which indicates which one.  */
%token TYPE_QUAL

/* Character or numeric constants.
   yylval is the node for the constant.  */
%token CONSTANT

/* String constants in raw form.
   yylval is a STRING_CST node.  */
%token STRING

/* "...", used for functions with variable arglists.  */
%token ELLIPSIS

/* the reserved words */
/* SCO include files test "ASM", so use something else. */
%token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
%token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
%token ATTRIBUTE EXTENSION LABEL
%token REALPART IMAGPART VA_ARG CHOOSE_EXPR TYPES_COMPATIBLE_P
%token PTR_VALUE PTR_BASE PTR_EXTENT

/* function name can be a string const or a var decl. */
%token STRING_FUNC_NAME VAR_FUNC_NAME

/* Add precedence rules to solve dangling else s/r conflict */
%nonassoc IF
%nonassoc ELSE

/* Define the operator tokens and their precedences.
   The value is an integer because, if used, it is the tree code
   to use in the expression made from the operator.  */

%right <code> ASSIGN '='
%right <code> '?' ':'
%left <code> OROR
%left <code> ANDAND
%left <code> '|'
%left <code> '^'
%left <code> '&'
%left <code> EQCOMPARE
%left <code> ARITHCOMPARE
%left <code> LSHIFT RSHIFT
%left <code> '+' '-'
%left <code> '*' '/' '%'
%right <code> UNARY PLUSPLUS MINUSMINUS
%left HYPERUNARY
%left <code> POINTSAT '.' '(' '['

/* The Objective-C keywords.  These are included in C and in
   Objective C, so that the token codes are the same in both.  */
%token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
%token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS

%type <code> unop
%type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
%type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF

%type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
%type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
%type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
%type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
%type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
%type <ttype> declspecs_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
%type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
%type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
%type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
%type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_ea
%type <ttype> declspecs_ts declspecs_nots
%type <ttype> declspecs_ts_nosa declspecs_nots_nosa
%type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
%type <ttype> maybe_type_quals_attrs typespec_nonattr typespec_attr
%type <ttype> typespec_reserved_nonattr typespec_reserved_attr
%type <ttype> typespec_nonreserved_nonattr

%type <ttype> SCSPEC TYPESPEC TYPE_QUAL maybe_type_qual
%type <ttype> initdecls notype_initdecls initdcl notype_initdcl
%type <ttype> init maybeasm
%type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
%type <ttype> maybe_attribute attributes attribute attribute_list attrib
%type <ttype> any_word extension

%type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
%type <ttype> do_stmt_start poplevel stmt label

%type <ttype> c99_block_start c99_block_end
%type <ttype> declarator
%type <ttype> notype_declarator after_type_declarator
%type <ttype> parm_declarator
%type <ttype> parm_declarator_starttypename parm_declarator_nostarttypename
%type <ttype> array_declarator

%type <ttype> structsp_attr structsp_nonattr
%type <ttype> component_decl_list component_decl_list2
%type <ttype> component_decl components components_notype component_declarator
%type <ttype> component_notype_declarator
%type <ttype> enumlist enumerator
%type <ttype> struct_head union_head enum_head
%type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
%type <ttype> direct_absdcl1 absdcl_maybe_attribute
%type <ttype> xexpr parms parm firstparm identifiers

%type <ttype> parmlist parmlist_1 parmlist_2
%type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
%type <ttype> identifiers_or_typenames

%type <itype> setspecs setspecs_fp

%type <filename> save_filename
%type <lineno> save_lineno


%{
/* Number of statements (loosely speaking) and compound statements 
   seen so far.  */
static int stmt_count;
static int compstmt_count;
  
/* Input file and line number of the end of the body of last simple_if;
   used by the stmt-rule immediately after simple_if returns.  */
static const char *if_stmt_file;
static int if_stmt_line;

/* List of types and structure classes of the current declaration.  */
static tree current_declspecs = NULL_TREE;
static tree prefix_attributes = NULL_TREE;

/* List of all the attributes applying to the identifier currently being
   declared; includes prefix_attributes and possibly some more attributes
   just after a comma.  */
static tree all_prefix_attributes = NULL_TREE;

/* Stack of saved values of current_declspecs, prefix_attributes and
   all_prefix_attributes.  */
static tree declspec_stack;

/* PUSH_DECLSPEC_STACK is called from setspecs; POP_DECLSPEC_STACK
   should be called from the productions making use of setspecs.  */
#define PUSH_DECLSPEC_STACK						 \
  do {									 \
    declspec_stack = tree_cons (build_tree_list (prefix_attributes,	 \
						 all_prefix_attributes), \
				current_declspecs,			 \
				declspec_stack);			 \
  } while (0)

#define POP_DECLSPEC_STACK						\
  do {									\
    current_declspecs = TREE_VALUE (declspec_stack);			\
    prefix_attributes = TREE_PURPOSE (TREE_PURPOSE (declspec_stack));	\
    all_prefix_attributes = TREE_VALUE (TREE_PURPOSE (declspec_stack));	\
    declspec_stack = TREE_CHAIN (declspec_stack);			\
  } while (0)

/* For __extension__, save/restore the warning flags which are
   controlled by __extension__.  */
#define SAVE_WARN_FLAGS()			\
	size_int (pedantic			\
		  | (warn_pointer_arith << 1)	\
		  | (warn_traditional << 2))

#define RESTORE_WARN_FLAGS(tval)		\
  do {						\
    int val = tree_low_cst (tval, 0);		\
    pedantic = val & 1;				\
    warn_pointer_arith = (val >> 1) & 1;	\
    warn_traditional = (val >> 2) & 1;		\
  } while (0)


#define OBJC_NEED_RAW_IDENTIFIER(VAL)	/* nothing */

/* Tell yyparse how to print a token's value, if yydebug is set.  */

#define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)

static void yyprint	  PARAMS ((FILE *, int, YYSTYPE));
static void yyerror	  PARAMS ((const char *));
static int yylexname	  PARAMS ((void));
static inline int _yylex  PARAMS ((void));
static int  yylex	  PARAMS ((void));
static void init_reswords PARAMS ((void));

/* Add GC roots for variables local to this file.  */
void
c_parse_init ()
{
  init_reswords ();

  ggc_add_tree_root (&declspec_stack, 1);
  ggc_add_tree_root (&current_declspecs, 1);
  ggc_add_tree_root (&prefix_attributes, 1);
  ggc_add_tree_root (&all_prefix_attributes, 1);
}

%}

%%
program: /* empty */
		{ if (pedantic)
		    pedwarn ("ISO C forbids an empty source file");
		  finish_file ();
		}
	| extdefs
		{
		  /* In case there were missing closebraces,
		     get us back to the global binding level.  */
		  while (! global_bindings_p ())
		    poplevel (0, 0, 0);
		  finish_fname_decls ();
                  finish_file ();
		}
	;

/* the reason for the strange actions in this rule
 is so that notype_initdecls when reached via datadef
 can find a valid list of type and sc specs in $0. */

extdefs:
	{$<ttype>$ = NULL_TREE; } extdef
	| extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
	;

extdef:
	fndef
	| datadef
	| ASM_KEYWORD '(' expr ')' ';'
		{ STRIP_NOPS ($3);
		  if ((TREE_CODE ($3) == ADDR_EXPR
		       && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
		      || TREE_CODE ($3) == STRING_CST)
		    assemble_asm ($3);
		  else
		    error ("argument of `asm' is not a constant string"); }
	| extension extdef
		{ RESTORE_WARN_FLAGS ($1); }
	;

datadef:
	  setspecs notype_initdecls ';'
		{ if (pedantic)
		    error ("ISO C forbids data definition with no type or storage class");
		  else if (!flag_traditional)
		    warning ("data definition has no type or storage class"); 

		  POP_DECLSPEC_STACK; }
        | declspecs_nots setspecs notype_initdecls ';'
		{ POP_DECLSPEC_STACK; }
	| declspecs_ts setspecs initdecls ';'
		{ POP_DECLSPEC_STACK; }
	| declspecs ';'
	  { shadow_tag ($1); }
	| error ';'
	| error '}'
	| ';'
		{ if (pedantic)
		    pedwarn ("ISO C does not allow extra `;' outside of a function"); }
	;

fndef:
	  declspecs_ts setspecs declarator
		{ if (! start_function (current_declspecs, $3,
					all_prefix_attributes))
		    YYERROR1;
		}
	  old_style_parm_decls
		{ store_parm_decls (); }
	  save_filename save_lineno compstmt_or_error
		{ DECL_SOURCE_FILE (current_function_decl) = $7;
		  DECL_SOURCE_LINE (current_function_decl) = $8;
		  finish_function (0, 1); 
		  POP_DECLSPEC_STACK; }
	| declspecs_ts setspecs declarator error
		{ POP_DECLSPEC_STACK; }
	| declspecs_nots setspecs notype_declarator
		{ if (! start_function (current_declspecs, $3,
					all_prefix_attributes))
		    YYERROR1;
		}
	  old_style_parm_decls
		{ store_parm_decls (); }
	  save_filename save_lineno compstmt_or_error
		{ DECL_SOURCE_FILE (current_function_decl) = $7;
		  DECL_SOURCE_LINE (current_function_decl) = $8;
		  finish_function (0, 1); 
		  POP_DECLSPEC_STACK; }
	| declspecs_nots setspecs notype_declarator error
		{ POP_DECLSPEC_STACK; }
	| setspecs notype_declarator
		{ if (! start_function (NULL_TREE, $2,
					all_prefix_attributes))
		    YYERROR1;
		}
	  old_style_parm_decls
		{ store_parm_decls (); }
	  save_filename save_lineno compstmt_or_error
		{ DECL_SOURCE_FILE (current_function_decl) = $6;
		  DECL_SOURCE_LINE (current_function_decl) = $7;
		  finish_function (0, 1); 
		  POP_DECLSPEC_STACK; }
	| setspecs notype_declarator error
		{ POP_DECLSPEC_STACK; }
	;

identifier:
	IDENTIFIER
	| TYPENAME
	;

unop:     '&'
		{ $$ = ADDR_EXPR; }
	| '-'
		{ $$ = NEGATE_EXPR; }
	| '+'
		{ $$ = CONVERT_EXPR;
  if (warn_traditional && !in_system_header)
    warning ("traditional C rejects the unary plus operator");
		}
	| PLUSPLUS
		{ $$ = PREINCREMENT_EXPR; }
	| MINUSMINUS
		{ $$ = PREDECREMENT_EXPR; }
	| '~'
		{ $$ = BIT_NOT_EXPR; }
	| '!'
		{ $$ = TRUTH_NOT_EXPR; }
	;

expr:	nonnull_exprlist
		{ $$ = build_compound_expr ($1); }
	;

exprlist:
	  /* empty */
		{ $$ = NULL_TREE; }
	| nonnull_exprlist
	;

nonnull_exprlist:
	expr_no_commas
		{ $$ = build_tree_list (NULL_TREE, $1); }
	| nonnull_exprlist ',' expr_no_commas
		{ chainon ($1, build_tree_list (NULL_TREE, $3)); }
	;

unary_expr:
	primary
	| '*' cast_expr   %prec UNARY
		{ $$ = build_indirect_ref ($2, "unary *"); }
	/* __extension__ turns off -pedantic for following primary.  */
	| extension cast_expr	  %prec UNARY
		{ $$ = $2;
		  RESTORE_WARN_FLAGS ($1); }
	| unop cast_expr  %prec UNARY
		{ $$ = build_unary_op ($1, $2, 0);
		  overflow_warning ($$); }
	/* Refer to the address of a label as a pointer.  */
	| ANDAND identifier
		{ $$ = finish_label_address_expr ($2); }
/* This seems to be impossible on some machines, so let's turn it off.
   You can use __builtin_next_arg to find the anonymous stack args.
	| '&' ELLIPSIS
		{ tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
		  $$ = error_mark_node;
		  if (TREE_VALUE (tree_last (types)) == void_type_node)
		    error ("`&...' used in function with fixed number of arguments");
		  else
		    {
		      if (pedantic)
			pedwarn ("ISO C forbids `&...'");
		      $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
		      $$ = build_unary_op (ADDR_EXPR, $$, 0);
		    } }
*/
	| sizeof unary_expr  %prec UNARY
		{ skip_evaluation--;
		  if (TREE_CODE ($2) == COMPONENT_REF
		      && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
		    error ("`sizeof' applied to a bit-field");
		  $$ = c_sizeof (TREE_TYPE ($2)); }
	| sizeof '(' typename ')'  %prec HYPERUNARY
		{ skip_evaluation--;
		  $$ = c_sizeof (groktypename ($3)); }
	| alignof unary_expr  %prec UNARY
		{ skip_evaluation--;
		  $$ = c_alignof_expr ($2); }
	| alignof '(' typename ')'  %prec HYPERUNARY
		{ skip_evaluation--;
		  $$ = c_alignof (groktypename ($3)); }
	| REALPART cast_expr %prec UNARY
		{ $$ = build_unary_op (REALPART_EXPR, $2, 0); }
	| IMAGPART cast_expr %prec UNARY
		{ $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
	;

sizeof:
	SIZEOF { skip_evaluation++; }
	;

alignof:
	ALIGNOF { skip_evaluation++; }
	;

typeof:
	TYPEOF { skip_evaluation++; }
	;

cast_expr:
	unary_expr
	| '(' typename ')' cast_expr  %prec UNARY
		{ $$ = c_cast_expr ($2, $4); }
	;

expr_no_commas:
	  cast_expr
	| expr_no_commas '+' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas '-' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas '*' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas '/' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas '%' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas LSHIFT expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas RSHIFT expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas ARITHCOMPARE expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas EQCOMPARE expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas '&' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas '|' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas '^' expr_no_commas
		{ $$ = parser_build_binary_op ($2, $1, $3); }
	| expr_no_commas ANDAND
		{ $1 = truthvalue_conversion (default_conversion ($1));
		  skip_evaluation += $1 == boolean_false_node; }
	  expr_no_commas
		{ skip_evaluation -= $1 == boolean_false_node;
		  $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
	| expr_no_commas OROR
		{ $1 = truthvalue_conversion (default_conversion ($1));
		  skip_evaluation += $1 == boolean_true_node; }
	  expr_no_commas
		{ skip_evaluation -= $1 == boolean_true_node;
		  $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
	| expr_no_commas '?'
		{ $1 = truthvalue_conversion (default_conversion ($1));
		  skip_evaluation += $1 == boolean_false_node; }
          expr ':'
		{ skip_evaluation += (($1 == boolean_true_node)
				      - ($1 == boolean_false_node)); }
	  expr_no_commas
		{ skip_evaluation -= $1 == boolean_true_node;
		  $$ = build_conditional_expr ($1, $4, $7); }
	| expr_no_commas '?'
		{ if (pedantic)
		    pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
		  /* Make sure first operand is calculated only once.  */
		  $<ttype>2 = save_expr ($1);
		  $1 = truthvalue_conversion (default_conversion ($<ttype>2));
		  skip_evaluation += $1 == boolean_true_node; }
	  ':' expr_no_commas
		{ skip_evaluation -= $1 == boolean_true_node;
		  $$ = build_conditional_expr ($1, $<ttype>2, $5); }
	| expr_no_commas '=' expr_no_commas
		{ char class;
		  $$ = build_modify_expr ($1, NOP_EXPR, $3);
		  class = TREE_CODE_CLASS (TREE_CODE ($$));
		  if (IS_EXPR_CODE_CLASS (class))
		    C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
		}
	| expr_no_commas ASSIGN expr_no_commas
		{ char class;
		  $$ = build_modify_expr ($1, $2, $3);
		  /* This inhibits warnings in truthvalue_conversion.  */
		  class = TREE_CODE_CLASS (TREE_CODE ($$));
		  if (IS_EXPR_CODE_CLASS (class))
		    C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
		}
	;

primary:
	IDENTIFIER
		{
		  if (yychar == YYEMPTY)
		    yychar = YYLEX;
		  $$ = build_external_ref ($1, yychar == '(');
		}
	| CONSTANT
	| string
		{ $$ = combine_strings ($1); }
	| VAR_FUNC_NAME
		{ $$ = fname_decl (C_RID_CODE ($$), $$); }
	| '(' typename ')' '{' 
		{ start_init (NULL_TREE, NULL, 0);
		  $2 = groktypename ($2);
		  really_start_incremental_init ($2); }
	  initlist_maybe_comma '}'  %prec UNARY
		{ tree constructor = pop_init_level (0);
		  tree type = $2;
		  finish_init ();

		  if (pedantic && ! flag_isoc99)
		    pedwarn ("ISO C89 forbids compound literals");
		  $$ = build_compound_literal (type, constructor);
		}
	| '(' expr ')'
		{ char class = TREE_CODE_CLASS (TREE_CODE ($2));
		  if (IS_EXPR_CODE_CLASS (class))
		    C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
		  $$ = $2; }
	| '(' error ')'
		{ $$ = error_mark_node; }
	| compstmt_primary_start compstmt_nostart ')'
                 { tree saved_last_tree;

		   if (pedantic)
		     pedwarn ("ISO C forbids braced-groups within expressions");
		  pop_label_level ();

		  saved_last_tree = COMPOUND_BODY ($1);
		  RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
		  last_tree = saved_last_tree;
		  TREE_CHAIN (last_tree) = NULL_TREE;
		  if (!last_expr_type)
		    last_expr_type = void_type_node;
		  $$ = build1 (STMT_EXPR, last_expr_type, $1);
		  TREE_SIDE_EFFECTS ($$) = 1;
		}
	| compstmt_primary_start error ')'
		{
		  pop_label_level ();
		  last_tree = COMPOUND_BODY ($1);
		  TREE_CHAIN (last_tree) = NULL_TREE;
		  $$ = error_mark_node;
		}
	| primary '(' exprlist ')'   %prec '.'
		{ $$ = build_function_call ($1, $3); }
	| VA_ARG '(' expr_no_commas ',' typename ')'
		{ $$ = build_va_arg ($3, groktypename ($5)); }

      | CHOOSE_EXPR '(' expr_no_commas ',' expr_no_commas ',' expr_no_commas ')'
		{
                  tree c;

                  c = fold ($3);
                  STRIP_NOPS (c);
                  if (TREE_CODE (c) != INTEGER_CST)
                    error ("first argument to __builtin_choose_expr not a constant");
                  $$ = integer_zerop (c) ? $7 : $5;
		}
      | TYPES_COMPATIBLE_P '(' typename ',' typename ')'
		{
		  tree e1, e2;

		  e1 = TYPE_MAIN_VARIANT (groktypename ($3));
		  e2 = TYPE_MAIN_VARIANT (groktypename ($5));

		  $$ = comptypes (e1, e2)
		    ? build_int_2 (1, 0) : build_int_2 (0, 0);
		}
	| primary '[' expr ']'   %prec '.'
		{ $$ = build_array_ref ($1, $3); }
	| primary '.' identifier
		{
		      $$ = build_component_ref ($1, $3);
		}
	| primary POINTSAT identifier
		{
                  tree expr = build_indirect_ref ($1, "->");

			$$ = build_component_ref (expr, $3);
		}
	| primary PLUSPLUS
		{ $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
	| primary MINUSMINUS
		{ $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
	;

/* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it.  */
string:
	  STRING
	| string STRING
		{
                  static int last_lineno = 0;
                  static const char *last_input_filename = 0;
                  $$ = chainon ($1, $2);
		  if (warn_traditional && !in_system_header
		      && (lineno != last_lineno || !last_input_filename ||
			  strcmp (last_input_filename, input_filename)))
		    {
		      warning ("traditional C rejects string concatenation");
		      last_lineno = lineno;
		      last_input_filename = input_filename;
		    }
		}
	;


old_style_parm_decls:
	/* empty */
	| datadecls
	| datadecls ELLIPSIS
		/* ... is used here to indicate a varargs function.  */
		{ c_mark_varargs ();
		  if (pedantic)
		    pedwarn ("ISO C does not permit use of `varargs.h'"); }
	;

/* The following are analogous to lineno_decl, decls and decl
   except that they do not allow nested functions.
   They are used for old-style parm decls.  */
lineno_datadecl:
	  save_filename save_lineno datadecl
		{ }
	;

datadecls:
	lineno_datadecl
	| errstmt
	| datadecls lineno_datadecl
	| lineno_datadecl errstmt
	;

/* We don't allow prefix attributes here because they cause reduce/reduce
   conflicts: we can't know whether we're parsing a function decl with
   attribute suffix, or function defn with attribute prefix on first old
   style parm.  */
datadecl:
	declspecs_ts_nosa setspecs initdecls ';'
		{ POP_DECLSPEC_STACK; }
	| declspecs_nots_nosa setspecs notype_initdecls ';'
		{ POP_DECLSPEC_STACK; }
	| declspecs_ts_nosa ';'
		{ shadow_tag_warned ($1, 1);
		  pedwarn ("empty declaration"); }
	| declspecs_nots_nosa ';'
		{ pedwarn ("empty declaration"); }
	;

/* This combination which saves a lineno before a decl
   is the normal thing to use, rather than decl itself.
   This is to avoid shift/reduce conflicts in contexts
   where statement labels are allowed.  */
lineno_decl:
	  save_filename save_lineno decl
		{ }
	;

/* records the type and storage class specs to use for processing
   the declarators that follow.
   Maintains a stack of outer-level values of current_declspecs,
   for the sake of parm declarations nested in function declarators.  */
setspecs: /* empty */
		{ pending_xref_error ();
		  PUSH_DECLSPEC_STACK;
		  split_specs_attrs ($<ttype>0,
				     &current_declspecs, &prefix_attributes);
		  all_prefix_attributes = prefix_attributes; }
	;

/* Possibly attributes after a comma, which should reset all_prefix_attributes
   to prefix_attributes with these ones chained on the front.  */
maybe_resetattrs:
	  maybe_attribute
		{ all_prefix_attributes = chainon ($1, prefix_attributes); }
	;

decl:
	declspecs_ts setspecs initdecls ';'
		{ POP_DECLSPEC_STACK; }
	| declspecs_nots setspecs notype_initdecls ';'
		{ POP_DECLSPEC_STACK; }
	| declspecs_ts setspecs nested_function
		{ POP_DECLSPEC_STACK; }
	| declspecs_nots setspecs notype_nested_function
		{ POP_DECLSPEC_STACK; }
	| declspecs ';'
		{ shadow_tag ($1); }
	| extension decl
		{ RESTORE_WARN_FLAGS ($1); }
	;

/* A list of declaration specifiers.  These are:

   - Storage class specifiers (SCSPEC), which for GCC currently include
   function specifiers ("inline").

   - Type specifiers (typespec_*).

   - Type qualifiers (TYPE_QUAL).

   - Attribute specifier lists (attributes).

   These are stored as a TREE_LIST; the head of the list is the last
   item in the specifier list.  Each entry in the list has either a
   TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
   is a single other specifier or qualifier; and a TREE_CHAIN that is the
   rest of the list.  TREE_STATIC is set on the list if something other
   than a storage class specifier or attribute has been seen; this is used
   to warn for the obsolescent usage of storage class specifiers other than
   at the start of the list.  (Doing this properly would require function
   specifiers to be handled separately from storage class specifiers.)

   The various cases below are classified according to:

   (a) Whether a storage class specifier is included or not; some
   places in the grammar disallow storage class specifiers (_sc or _nosc).

   (b) Whether a type specifier has been seen; after a type specifier,
   a typedef name is an identifier to redeclare (_ts or _nots).

   (c) Whether the list starts with an attribute; in certain places,
   the grammar requires specifiers that don't start with an attribute
   (_sa or _nosa).

   (d) Whether the list ends with an attribute (or a specifier such that
   any following attribute would have been parsed as part of that specifier);
   this avoids shift-reduce conflicts in the parsing of attributes
   (_ea or _noea).

   TODO:

   (i) Distinguish between function specifiers and storage class specifiers,
   at least for the purpose of warnings about obsolescent usage.

   (ii) Halve the number of productions here by eliminating the _sc/_nosc
   distinction and instead checking where required that storage class
   specifiers aren't present.  */

/* Declspecs which contain at least one type specifier or typedef name.
   (Just `const' or `volatile' is not enough.)
   A typedef'd name following these is taken as a name to be declared.
   Declspecs have a non-NULL TREE_VALUE, attributes do not.  */

declspecs_nosc_nots_nosa_noea:
	  TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_nosa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_nosa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

declspecs_nosc_nots_nosa_ea:
	  declspecs_nosc_nots_nosa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_nosc_nots_sa_noea:
	  declspecs_nosc_nots_sa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_sa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

declspecs_nosc_nots_sa_ea:
	  attributes
		{ $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
		  TREE_STATIC ($$) = 0; }
	| declspecs_nosc_nots_sa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_nosc_ts_nosa_noea:
	  typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_nosa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_nosa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_nosa_noea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_nosa_ea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

declspecs_nosc_ts_nosa_ea:
	  typespec_attr
		{ $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_nosa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_nosc_ts_nosa_noea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_nosa_ea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_nosa_noea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_nosa_ea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

declspecs_nosc_ts_sa_noea:
	  declspecs_nosc_ts_sa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_sa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_sa_noea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_sa_ea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

declspecs_nosc_ts_sa_ea:
	  declspecs_nosc_ts_sa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_nosc_ts_sa_noea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_sa_ea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_sa_noea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_sa_ea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

declspecs_sc_nots_nosa_noea:
	  SCSPEC
		{ $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
		  TREE_STATIC ($$) = 0; }
	| declspecs_sc_nots_nosa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_nosa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_nosa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_nosc_nots_nosa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_nots_nosa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_nots_nosa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_sc_nots_nosa_ea:
	  declspecs_sc_nots_nosa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_sc_nots_sa_noea:
	  declspecs_sc_nots_sa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_sa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_nots_sa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_nosc_nots_sa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_nots_sa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_nots_sa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_sc_nots_sa_ea:
	  declspecs_sc_nots_sa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_sc_ts_nosa_noea:
	  declspecs_sc_ts_nosa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_nosa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_nosa_noea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_nosa_ea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_nosa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_nosc_ts_nosa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_ts_nosa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_ts_nosa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_sc_ts_nosa_ea:
	  declspecs_sc_ts_nosa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_ts_nosa_noea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_nosa_ea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_nosa_noea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_nosa_ea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

declspecs_sc_ts_sa_noea:
	  declspecs_sc_ts_sa_noea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_sa_ea TYPE_QUAL
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_sa_noea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_sa_ea typespec_reserved_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_sa_noea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_sa_ea typespec_nonattr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_nosc_ts_sa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_nosc_ts_sa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_ts_sa_noea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_ts_sa_ea SCSPEC
		{ if (extra_warnings && TREE_STATIC ($1))
		    warning ("`%s' is not at beginning of declaration",
			     IDENTIFIER_POINTER ($2));
		  $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	;

declspecs_sc_ts_sa_ea:
	  declspecs_sc_ts_sa_noea attributes
		{ $$ = tree_cons ($2, NULL_TREE, $1);
		  TREE_STATIC ($$) = TREE_STATIC ($1); }
	| declspecs_sc_ts_sa_noea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_ts_sa_ea typespec_reserved_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_sa_noea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	| declspecs_sc_nots_sa_ea typespec_attr
		{ $$ = tree_cons (NULL_TREE, $2, $1);
		  TREE_STATIC ($$) = 1; }
	;

/* Particular useful classes of declspecs.  */
declspecs_ts:
	  declspecs_nosc_ts_nosa_noea
	| declspecs_nosc_ts_nosa_ea
	| declspecs_nosc_ts_sa_noea
	| declspecs_nosc_ts_sa_ea
	| declspecs_sc_ts_nosa_noea
	| declspecs_sc_ts_nosa_ea
	| declspecs_sc_ts_sa_noea
	| declspecs_sc_ts_sa_ea
	;

declspecs_nots:
	  declspecs_nosc_nots_nosa_noea
	| declspecs_nosc_nots_nosa_ea
	| declspecs_nosc_nots_sa_noea
	| declspecs_nosc_nots_sa_ea
	| declspecs_sc_nots_nosa_noea
	| declspecs_sc_nots_nosa_ea
	| declspecs_sc_nots_sa_noea
	| declspecs_sc_nots_sa_ea
	;

declspecs_ts_nosa:
	  declspecs_nosc_ts_nosa_noea
	| declspecs_nosc_ts_nosa_ea
	| declspecs_sc_ts_nosa_noea
	| declspecs_sc_ts_nosa_ea
	;

declspecs_nots_nosa:
	  declspecs_nosc_nots_nosa_noea
	| declspecs_nosc_nots_nosa_ea
	| declspecs_sc_nots_nosa_noea
	| declspecs_sc_nots_nosa_ea
	;

declspecs_nosc_ts:
	  declspecs_nosc_ts_nosa_noea
	| declspecs_nosc_ts_nosa_ea
	| declspecs_nosc_ts_sa_noea
	| declspecs_nosc_ts_sa_ea
	;

declspecs_nosc_nots:
	  declspecs_nosc_nots_nosa_noea
	| declspecs_nosc_nots_nosa_ea
	| declspecs_nosc_nots_sa_noea
	| declspecs_nosc_nots_sa_ea
	;

declspecs_nosc:
	  declspecs_nosc_ts_nosa_noea
	| declspecs_nosc_ts_nosa_ea
	| declspecs_nosc_ts_sa_noea
	| declspecs_nosc_ts_sa_ea
	| declspecs_nosc_nots_nosa_noea
	| declspecs_nosc_nots_nosa_ea
	| declspecs_nosc_nots_sa_noea
	| declspecs_nosc_nots_sa_ea
	;

declspecs:
	  declspecs_nosc_nots_nosa_noea
	| declspecs_nosc_nots_nosa_ea
	| declspecs_nosc_nots_sa_noea
	| declspecs_nosc_nots_sa_ea
	| declspecs_nosc_ts_nosa_noea
	| declspecs_nosc_ts_nosa_ea
	| declspecs_nosc_ts_sa_noea
	| declspecs_nosc_ts_sa_ea
	| declspecs_sc_nots_nosa_noea
	| declspecs_sc_nots_nosa_ea
	| declspecs_sc_nots_sa_noea
	| declspecs_sc_nots_sa_ea
	| declspecs_sc_ts_nosa_noea
	| declspecs_sc_ts_nosa_ea
	| declspecs_sc_ts_sa_noea
	| declspecs_sc_ts_sa_ea
	;

/* A (possibly empty) sequence of type qualifiers and attributes.  */
maybe_type_quals_attrs:
	  /* empty */
		{ $$ = NULL_TREE; }
	| declspecs_nosc_nots
		{ $$ = $1; }
	;

/* A type specifier (but not a type qualifier).
   Once we have seen one of these in a declaration,
   if a typedef name appears then it is being redeclared.

   The _reserved versions start with a reserved word and may appear anywhere
   in the declaration specifiers; the _nonreserved versions may only
   appear before any other type specifiers, and after that are (if names)
   being redeclared.

   FIXME: should the _nonreserved version be restricted to names being
   redeclared only?  The other entries there relate only the GNU extensions
   and Objective C, and are historically parsed thus, and don't make sense
   after other type specifiers, but it might be cleaner to count them as
   _reserved.

   _attr means: specifiers that either end with attributes,
   or are such that any following attributes would
   be parsed as part of the specifier.

   _nonattr: specifiers.  */

typespec_nonattr:
	  typespec_reserved_nonattr
	| typespec_nonreserved_nonattr
	;

typespec_attr:
	  typespec_reserved_attr
	;

typespec_reserved_nonattr:
	  TYPESPEC
		{ OBJC_NEED_RAW_IDENTIFIER (1);	}
	| structsp_nonattr
	;

typespec_reserved_attr:
	  structsp_attr
	;

typespec_nonreserved_nonattr:
	  TYPENAME
		{ /* For a typedef name, record the meaning, not the name.
		     In case of `foo foo, bar;'.  */
		  $$ = lookup_name ($1); }
	| typeof '(' expr ')'
		{ skip_evaluation--; $$ = TREE_TYPE ($3); }
	| typeof '(' typename ')'
		{ skip_evaluation--; $$ = groktypename ($3); }
	;

/* typespec_nonreserved_attr does not exist.  */

initdecls:
	initdcl
	| initdecls ',' maybe_resetattrs initdcl
	;

notype_initdecls:
	notype_initdcl
	| notype_initdecls ',' maybe_resetattrs notype_initdcl
	;

maybeasm:
	  /* empty */
		{ $$ = NULL_TREE; }
	| ASM_KEYWORD '(' string ')'
		{ if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
		  $$ = $3;
		}
	;

initdcl:
	  declarator maybeasm maybe_attribute '='
		{ $<ttype>$ = start_decl ($1, current_declspecs, 1,
					  chainon ($3, all_prefix_attributes));
		  start_init ($<ttype>$, $2, global_bindings_p ()); }
	  init
/* Note how the declaration of the variable is in effect while its init is parsed! */
		{ finish_init ();
		  finish_decl ($<ttype>5, $6, $2); }
	| declarator maybeasm maybe_attribute
		{ tree d = start_decl ($1, current_declspecs, 0,
				       chainon ($3, all_prefix_attributes));
		  finish_decl (d, NULL_TREE, $2); 
                }
	;

notype_initdcl:
	  notype_declarator maybeasm maybe_attribute '='
		{ $<ttype>$ = start_decl ($1, current_declspecs, 1,
					  chainon ($3, all_prefix_attributes));
		  start_init ($<ttype>$, $2, global_bindings_p ()); }
	  init
/* Note how the declaration of the variable is in effect while its init is parsed! */
		{ finish_init ();
		  finish_decl ($<ttype>5, $6, $2); }
	| notype_declarator maybeasm maybe_attribute
		{ tree d = start_decl ($1, current_declspecs, 0,
				       chainon ($3, all_prefix_attributes));
		  finish_decl (d, NULL_TREE, $2); }
	;
/* the * rules are dummies to accept the Apollo extended syntax
   so that the header files compile. */
maybe_attribute:
      /* empty */
  		{ $$ = NULL_TREE; }
	| attributes
		{ $$ = $1; }
	;
 
attributes:
      attribute
		{ $$ = $1; }
	| attributes attribute
		{ $$ = chainon ($1, $2); }
	;

attribute:
      ATTRIBUTE '(' '(' attribute_list ')' ')'
		{ $$ = $4; }
	;

attribute_list:
      attrib
		{ $$ = $1; }
	| attribute_list ',' attrib
		{ $$ = chainon ($1, $3); }
	;
 
attrib:
    /* empty */
		{ $$ = NULL_TREE; }
	| any_word
		{ $$ = build_tree_list ($1, NULL_TREE); }
	| any_word '(' IDENTIFIER ')'
		{ $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
	| any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
		{ $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
	| any_word '(' exprlist ')'
		{ $$ = build_tree_list ($1, $3); }
	;

/* This still leaves out most reserved keywords,
   shouldn't we include them?  */

any_word:
	  identifier
	| SCSPEC
	| TYPESPEC
	| TYPE_QUAL
	;

/* Initializers.  `init' is the entry point.  */

init:
	expr_no_commas
	| '{'
		{ really_start_incremental_init (NULL_TREE); }
	  initlist_maybe_comma '}'
		{ $$ = pop_init_level (0); }
	| error
		{ $$ = error_mark_node; }
	;

/* `initlist_maybe_comma' is the guts of an initializer in braces.  */
initlist_maybe_comma:
	  /* empty */
		{ if (pedantic)
		    pedwarn ("ISO C forbids empty initializer braces"); }
	| initlist1 maybecomma
	;

initlist1:
	  initelt
	| initlist1 ',' initelt
	;

/* `initelt' is a single element of an initializer.
   It may use braces.  */
initelt:
	  designator_list '=' initval
		{ if (pedantic && ! flag_isoc99)
		    pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
	| designator initval
		{ if (pedantic)
		    pedwarn ("obsolete use of designated initializer without `='"); }
	| identifier ':'
		{ set_init_label ($1);
		  if (pedantic)
		    pedwarn ("obsolete use of designated initializer with `:'"); }
	  initval
		{}
	| initval
	;

initval:
	  '{'
		{ push_init_level (0); }
	  initlist_maybe_comma '}'
		{ process_init_element (pop_init_level (0)); }
	| expr_no_commas
		{ process_init_element ($1); }
	| error
	;

designator_list:
	  designator
	| designator_list designator
	;

designator:
	  '.' identifier
		{ set_init_label ($2); }
	/* These are for labeled elements.  The syntax for an array element
	   initializer conflicts with the syntax for an Objective-C message,
	   so don't include these productions in the Objective-C grammar.  */
	| '[' expr_no_commas ELLIPSIS expr_no_commas ']'
		{ set_init_index ($2, $4);
		  if (pedantic)
		    pedwarn ("ISO C forbids specifying range of elements to initialize"); }
	| '[' expr_no_commas ']'
		{ set_init_index ($2, NULL_TREE); }
	;

nested_function:
	  declarator
		{ if (pedantic)
		    pedwarn ("ISO C forbids nested functions");

		  push_function_context ();
		  if (! start_function (current_declspecs, $1,
					all_prefix_attributes))
		    {
		      pop_function_context ();
		      YYERROR1;
		    }
		}
	   old_style_parm_decls
		{ store_parm_decls (); }
/* This used to use compstmt_or_error.
   That caused a bug with input `f(g) int g {}',
   where the use of YYERROR1 above caused an error
   which then was handled by compstmt_or_error.
   There followed a repeated execution of that same rule,
   which called YYERROR1 again, and so on.  */
	  save_filename save_lineno compstmt
		{ tree decl = current_function_decl;
		  DECL_SOURCE_FILE (decl) = $5;
		  DECL_SOURCE_LINE (decl) = $6;
		  finish_function (1, 1);
		  pop_function_context (); 
		  add_decl_stmt (decl); }
	;

notype_nested_function:
	  notype_declarator
		{ if (pedantic)
		    pedwarn ("ISO C forbids nested functions");

		  push_function_context ();
		  if (! start_function (current_declspecs, $1,
					all_prefix_attributes))
		    {
		      pop_function_context ();
		      YYERROR1;
		    }
		}
	  old_style_parm_decls
		{ store_parm_decls (); }
/* This used to use compstmt_or_error.
   That caused a bug with input `f(g) int g {}',
   where the use of YYERROR1 above caused an error
   which then was handled by compstmt_or_error.
   There followed a repeated execution of that same rule,
   which called YYERROR1 again, and so on.  */
	  save_filename save_lineno compstmt
		{ tree decl = current_function_decl;
		  DECL_SOURCE_FILE (decl) = $5;
		  DECL_SOURCE_LINE (decl) = $6;
		  finish_function (1, 1);
		  pop_function_context (); 
		  add_decl_stmt (decl); }
	;

/* Any kind of declarator (thus, all declarators allowed
   after an explicit typespec).  */

declarator:
	  after_type_declarator
	| notype_declarator
	;

/* A declarator that is allowed only after an explicit typespec.  */

after_type_declarator:
	  '(' maybe_attribute after_type_declarator ')'
		{ $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
	| after_type_declarator '(' parmlist_or_identifiers  %prec '.'
		{ $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
/*	| after_type_declarator '(' error ')'  %prec '.'
		{ $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
		  poplevel (0, 0, 0); }  */
	| after_type_declarator array_declarator  %prec '.'
		{ $$ = set_array_declarator_type ($2, $1, 0); }
	| '*' maybe_type_quals_attrs after_type_declarator  %prec UNARY
		{ $$ = make_pointer_declarator ($2, $3); }
	| TYPENAME
	;

/* Kinds of declarator that can appear in a parameter list
   in addition to notype_declarator.  This is like after_type_declarator
   but does not allow a typedef name in parentheses as an identifier
   (because it would conflict with a function with that typedef as arg).  */
parm_declarator:
	  parm_declarator_starttypename
	| parm_declarator_nostarttypename
	;

parm_declarator_starttypename:
	  parm_declarator_starttypename '(' parmlist_or_identifiers  %prec '.'
		{ $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
/*	| parm_declarator_starttypename '(' error ')'  %prec '.'
		{ $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
		  poplevel (0, 0, 0); }  */
	| parm_declarator_starttypename array_declarator  %prec '.'
		{ $$ = set_array_declarator_type ($2, $1, 0); }
	| TYPENAME
	;

parm_declarator_nostarttypename:
	  parm_declarator_nostarttypename '(' parmlist_or_identifiers  %prec '.'
		{ $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
/*	| parm_declarator_nostarttypename '(' error ')'  %prec '.'
		{ $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
		  poplevel (0, 0, 0); }  */
	| parm_declarator_nostarttypename array_declarator  %prec '.'
		{ $$ = set_array_declarator_type ($2, $1, 0); }
	| '*' maybe_type_quals_attrs parm_declarator_starttypename  %prec UNARY
		{ $$ = make_pointer_declarator ($2, $3); }
	| '*' maybe_type_quals_attrs parm_declarator_nostarttypename  %prec UNARY
		{ $$ = make_pointer_declarator ($2, $3); }
	| '(' maybe_attribute parm_declarator_nostarttypename ')'
		{ $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
	;

/* A declarator allowed whether or not there has been
   an explicit typespec.  These cannot redeclare a typedef-name.  */

notype_declarator:
	  notype_declar…