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freebsd-skq/contrib/gcc/cexp.y

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Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Parse C expressions for CCCP.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
Copyright (C) 1987, 1992, 94 - 97, 1998 Free Software Foundation.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
what you give them. Help stamp out software-hoarding!
Adapted from expread.y of GDB by Paul Rubin, July 1986. */
/* Parse a C expression from text in a string */
%{
#include "config.h"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifdef __STDC__
# include <stdarg.h>
#else
# include <varargs.h>
#endif
#define PRINTF_PROTO(ARGS, m, n) PVPROTO (ARGS) ATTRIBUTE_PRINTF(m, n)
#define PRINTF_PROTO_1(ARGS) PRINTF_PROTO(ARGS, 1, 2)
#include "system.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include <setjmp.h>
/* #define YYDEBUG 1 */
#ifdef MULTIBYTE_CHARS
#include <locale.h>
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "gansidecl.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
typedef unsigned char U_CHAR;
/* This is used for communicating lists of keywords with cccp.c. */
struct arglist {
struct arglist *next;
U_CHAR *name;
int length;
int argno;
};
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Find the largest host integer type and set its size and type.
Watch out: on some crazy hosts `long' is shorter than `int'. */
#ifndef HOST_WIDE_INT
# if HAVE_INTTYPES_H
# include <inttypes.h>
# define HOST_WIDE_INT intmax_t
# define unsigned_HOST_WIDE_INT uintmax_t
# else
# if (HOST_BITS_PER_LONG <= HOST_BITS_PER_INT && HOST_BITS_PER_LONGLONG <= HOST_BITS_PER_INT)
# define HOST_WIDE_INT int
# else
# if (HOST_BITS_PER_LONGLONG <= HOST_BITS_PER_LONG || ! (defined LONG_LONG_MAX || defined LLONG_MAX))
# define HOST_WIDE_INT long
# else
# define HOST_WIDE_INT long long
# endif
# endif
# endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifndef unsigned_HOST_WIDE_INT
#define unsigned_HOST_WIDE_INT unsigned HOST_WIDE_INT
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifndef HOST_BITS_PER_WIDE_INT
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#define HOST_BITS_PER_WIDE_INT (CHAR_BIT * sizeof (HOST_WIDE_INT))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
HOST_WIDE_INT parse_c_expression PROTO((char *, int));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static int yylex PROTO((void));
static void yyerror PROTO((char *)) __attribute__ ((noreturn));
static HOST_WIDE_INT expression_value;
#ifdef TEST_EXP_READER
static int expression_signedp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
static jmp_buf parse_return_error;
/* Nonzero means count most punctuation as part of a name. */
static int keyword_parsing = 0;
/* Nonzero means do not evaluate this expression.
This is a count, since unevaluated expressions can nest. */
static int skip_evaluation;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Nonzero means warn if undefined identifiers are evaluated. */
static int warn_undef;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* some external tables of character types */
extern unsigned char is_idstart[], is_idchar[], is_space[];
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Flag for -pedantic. */
extern int pedantic;
/* Flag for -traditional. */
extern int traditional;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* Flag for -lang-c89. */
extern int c89;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#ifndef CHAR_TYPE_SIZE
#define CHAR_TYPE_SIZE BITS_PER_UNIT
#endif
#ifndef INT_TYPE_SIZE
#define INT_TYPE_SIZE BITS_PER_WORD
#endif
#ifndef LONG_TYPE_SIZE
#define LONG_TYPE_SIZE BITS_PER_WORD
#endif
#ifndef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE INT_TYPE_SIZE
#endif
#ifndef MAX_CHAR_TYPE_SIZE
#define MAX_CHAR_TYPE_SIZE CHAR_TYPE_SIZE
#endif
#ifndef MAX_INT_TYPE_SIZE
#define MAX_INT_TYPE_SIZE INT_TYPE_SIZE
#endif
#ifndef MAX_LONG_TYPE_SIZE
#define MAX_LONG_TYPE_SIZE LONG_TYPE_SIZE
#endif
#ifndef MAX_WCHAR_TYPE_SIZE
#define MAX_WCHAR_TYPE_SIZE WCHAR_TYPE_SIZE
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#define MAX_CHAR_TYPE_MASK (MAX_CHAR_TYPE_SIZE < HOST_BITS_PER_WIDE_INT \
? (~ (~ (HOST_WIDE_INT) 0 << MAX_CHAR_TYPE_SIZE)) \
: ~ (HOST_WIDE_INT) 0)
#define MAX_WCHAR_TYPE_MASK (MAX_WCHAR_TYPE_SIZE < HOST_BITS_PER_WIDE_INT \
? ~ (~ (HOST_WIDE_INT) 0 << MAX_WCHAR_TYPE_SIZE) \
: ~ (HOST_WIDE_INT) 0)
/* Suppose A1 + B1 = SUM1, using 2's complement arithmetic ignoring overflow.
Suppose A, B and SUM have the same respective signs as A1, B1, and SUM1.
Suppose SIGNEDP is negative if the result is signed, zero if unsigned.
Then this yields nonzero if overflow occurred during the addition.
Overflow occurs if A and B have the same sign, but A and SUM differ in sign,
and SIGNEDP is negative.
Use `^' to test whether signs differ, and `< 0' to isolate the sign. */
#define overflow_sum_sign(a, b, sum, signedp) \
((~((a) ^ (b)) & ((a) ^ (sum)) & (signedp)) < 0)
struct constant;
GENERIC_PTR xmalloc PROTO((size_t));
HOST_WIDE_INT parse_escape PROTO((char **, HOST_WIDE_INT));
int check_assertion PROTO((U_CHAR *, int, int, struct arglist *));
struct hashnode *lookup PROTO((U_CHAR *, int, int));
void error PRINTF_PROTO_1((char *, ...));
void pedwarn PRINTF_PROTO_1((char *, ...));
void warning PRINTF_PROTO_1((char *, ...));
static int parse_number PROTO((int));
static HOST_WIDE_INT left_shift PROTO((struct constant *, unsigned_HOST_WIDE_INT));
static HOST_WIDE_INT right_shift PROTO((struct constant *, unsigned_HOST_WIDE_INT));
static void integer_overflow PROTO((void));
/* `signedp' values */
#define SIGNED (~0)
#define UNSIGNED 0
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
%}
%union {
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
struct constant {HOST_WIDE_INT value; int signedp;} integer;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
struct name {U_CHAR *address; int length;} name;
struct arglist *keywords;
}
%type <integer> exp exp1 start
%type <keywords> keywords
%token <integer> INT CHAR
%token <name> NAME
%token <integer> ERROR
%right '?' ':'
%left ','
%left OR
%left AND
%left '|'
%left '^'
%left '&'
%left EQUAL NOTEQUAL
%left '<' '>' LEQ GEQ
%left LSH RSH
%left '+' '-'
%left '*' '/' '%'
%right UNARY
/* %expect 40 */
%%
start : exp1
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{
expression_value = $1.value;
#ifdef TEST_EXP_READER
expression_signedp = $1.signedp;
#endif
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
;
/* Expressions, including the comma operator. */
exp1 : exp
| exp1 ',' exp
{ if (pedantic)
pedwarn ("comma operator in operand of `#if'");
$$ = $3; }
;
/* Expressions, not including the comma operator. */
exp : '-' exp %prec UNARY
{ $$.value = - $2.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $2.signedp;
if (($$.value & $2.value & $$.signedp) < 0)
integer_overflow (); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| '!' exp %prec UNARY
{ $$.value = ! $2.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| '+' exp %prec UNARY
{ $$ = $2; }
| '~' exp %prec UNARY
{ $$.value = ~ $2.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $2.signedp; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| '#' NAME
{ $$.value = check_assertion ($2.address, $2.length,
0, NULL_PTR);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| '#' NAME
{ keyword_parsing = 1; }
'(' keywords ')'
{ $$.value = check_assertion ($2.address, $2.length,
1, $5);
keyword_parsing = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| '(' exp1 ')'
{ $$ = $2; }
;
/* Binary operators in order of decreasing precedence. */
exp : exp '*' exp
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ $$.signedp = $1.signedp & $3.signedp;
if ($$.signedp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
$$.value = $1.value * $3.value;
if ($1.value
&& ($$.value / $1.value != $3.value
|| ($$.value & $1.value & $3.value) < 0))
integer_overflow ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
else
$$.value = ((unsigned_HOST_WIDE_INT) $1.value
* $3.value); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '/' exp
{ if ($3.value == 0)
{
if (!skip_evaluation)
error ("division by zero in #if");
$3.value = 1;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $1.signedp & $3.signedp;
if ($$.signedp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
$$.value = $1.value / $3.value;
if (($$.value & $1.value & $3.value) < 0)
integer_overflow ();
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
}
else
$$.value = ((unsigned_HOST_WIDE_INT) $1.value
/ $3.value); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '%' exp
{ if ($3.value == 0)
{
if (!skip_evaluation)
error ("division by zero in #if");
$3.value = 1;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $1.signedp & $3.signedp;
if ($$.signedp)
$$.value = $1.value % $3.value;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.value = ((unsigned_HOST_WIDE_INT) $1.value
% $3.value); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '+' exp
{ $$.value = $1.value + $3.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $1.signedp & $3.signedp;
if (overflow_sum_sign ($1.value, $3.value,
$$.value, $$.signedp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
integer_overflow (); }
| exp '-' exp
{ $$.value = $1.value - $3.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $1.signedp & $3.signedp;
if (overflow_sum_sign ($$.value, $3.value,
$1.value, $$.signedp))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
integer_overflow (); }
| exp LSH exp
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ $$.signedp = $1.signedp;
if (($3.value & $3.signedp) < 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
$$.value = right_shift (&$1, -$3.value);
else
$$.value = left_shift (&$1, $3.value); }
| exp RSH exp
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ $$.signedp = $1.signedp;
if (($3.value & $3.signedp) < 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
$$.value = left_shift (&$1, -$3.value);
else
$$.value = right_shift (&$1, $3.value); }
| exp EQUAL exp
{ $$.value = ($1.value == $3.value);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp NOTEQUAL exp
{ $$.value = ($1.value != $3.value);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp LEQ exp
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ $$.signedp = SIGNED;
if ($1.signedp & $3.signedp)
$$.value = $1.value <= $3.value;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.value = ((unsigned_HOST_WIDE_INT) $1.value
<= $3.value); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp GEQ exp
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ $$.signedp = SIGNED;
if ($1.signedp & $3.signedp)
$$.value = $1.value >= $3.value;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.value = ((unsigned_HOST_WIDE_INT) $1.value
>= $3.value); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '<' exp
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ $$.signedp = SIGNED;
if ($1.signedp & $3.signedp)
$$.value = $1.value < $3.value;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.value = ((unsigned_HOST_WIDE_INT) $1.value
< $3.value); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '>' exp
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ $$.signedp = SIGNED;
if ($1.signedp & $3.signedp)
$$.value = $1.value > $3.value;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.value = ((unsigned_HOST_WIDE_INT) $1.value
> $3.value); }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '&' exp
{ $$.value = $1.value & $3.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $1.signedp & $3.signedp; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '^' exp
{ $$.value = $1.value ^ $3.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $1.signedp & $3.signedp; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '|' exp
{ $$.value = $1.value | $3.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $1.signedp & $3.signedp; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp AND
{ skip_evaluation += !$1.value; }
exp
{ skip_evaluation -= !$1.value;
$$.value = ($1.value && $4.value);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp OR
{ skip_evaluation += !!$1.value; }
exp
{ skip_evaluation -= !!$1.value;
$$.value = ($1.value || $4.value);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| exp '?'
{ skip_evaluation += !$1.value; }
exp ':'
{ skip_evaluation += !!$1.value - !$1.value; }
exp
{ skip_evaluation -= !!$1.value;
$$.value = $1.value ? $4.value : $7.value;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
$$.signedp = $4.signedp & $7.signedp; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
| INT
{ $$ = yylval.integer; }
| CHAR
{ $$ = yylval.integer; }
| NAME
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
{ if (warn_undef && !skip_evaluation)
warning ("`%.*s' is not defined",
$1.length, $1.address);
$$.value = 0;
$$.signedp = SIGNED; }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
;
keywords :
{ $$ = 0; }
| '(' keywords ')' keywords
{ struct arglist *temp;
$$ = (struct arglist *) xmalloc (sizeof (struct arglist));
$$->next = $2;
$$->name = (U_CHAR *) "(";
$$->length = 1;
temp = $$;
while (temp != 0 && temp->next != 0)
temp = temp->next;
temp->next = (struct arglist *) xmalloc (sizeof (struct arglist));
temp->next->next = $4;
temp->next->name = (U_CHAR *) ")";
temp->next->length = 1; }
| NAME keywords
{ $$ = (struct arglist *) xmalloc (sizeof (struct arglist));
$$->name = $1.address;
$$->length = $1.length;
$$->next = $2; }
;
%%
/* During parsing of a C expression, the pointer to the next character
is in this variable. */
static char *lexptr;
/* Take care of parsing a number (anything that starts with a digit).
Set yylval and return the token type; update lexptr.
LEN is the number of characters in it. */
/* maybe needs to actually deal with floating point numbers */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static int
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
parse_number (olen)
int olen;
{
register char *p = lexptr;
register int c;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
register unsigned_HOST_WIDE_INT n = 0, nd, max_over_base;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
register int base = 10;
register int len = olen;
register int overflow = 0;
register int digit, largest_digit = 0;
int spec_long = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
yylval.integer.signedp = SIGNED;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (*p == '0') {
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
base = 8;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (len >= 3 && (p[1] == 'x' || p[1] == 'X')) {
p += 2;
base = 16;
len -= 2;
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
max_over_base = (unsigned_HOST_WIDE_INT) -1 / base;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (; len > 0; len--) {
c = *p++;
if (c >= '0' && c <= '9')
digit = c - '0';
else if (base == 16 && c >= 'a' && c <= 'f')
digit = c - 'a' + 10;
else if (base == 16 && c >= 'A' && c <= 'F')
digit = c - 'A' + 10;
else {
/* `l' means long, and `u' means unsigned. */
while (1) {
if (c == 'l' || c == 'L')
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (!pedantic < spec_long)
yyerror ("too many `l's in integer constant");
spec_long++;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (c == 'u' || c == 'U')
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (! yylval.integer.signedp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
yyerror ("two `u's in integer constant");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
yylval.integer.signedp = UNSIGNED;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else {
if (c == '.' || c == 'e' || c == 'E' || c == 'p' || c == 'P')
yyerror ("Floating point numbers not allowed in #if expressions");
else {
char *buf = (char *) alloca (p - lexptr + 40);
sprintf (buf, "missing white space after number `%.*s'",
(int) (p - lexptr - 1), lexptr);
yyerror (buf);
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (--len == 0)
break;
c = *p++;
}
/* Don't look for any more digits after the suffixes. */
break;
}
if (largest_digit < digit)
largest_digit = digit;
nd = n * base + digit;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
overflow |= (max_over_base < n) | (nd < n);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
n = nd;
}
if (base <= largest_digit)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pedwarn ("integer constant contains digits beyond the radix");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (overflow)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pedwarn ("integer constant out of range");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If too big to be signed, consider it unsigned. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (((HOST_WIDE_INT) n & yylval.integer.signedp) < 0)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
if (base == 10)
warning ("integer constant is so large that it is unsigned");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
yylval.integer.signedp = UNSIGNED;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
lexptr = p;
yylval.integer.value = n;
return INT;
}
struct token {
char *operator;
int token;
};
static struct token tokentab2[] = {
{"&&", AND},
{"||", OR},
{"<<", LSH},
{">>", RSH},
{"==", EQUAL},
{"!=", NOTEQUAL},
{"<=", LEQ},
{">=", GEQ},
{"++", ERROR},
{"--", ERROR},
{NULL, ERROR}
};
/* Read one token, getting characters through lexptr. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static int
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
yylex ()
{
register int c;
register int namelen;
register unsigned char *tokstart;
register struct token *toktab;
int wide_flag;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
HOST_WIDE_INT mask;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
retry:
tokstart = (unsigned char *) lexptr;
c = *tokstart;
/* See if it is a special token of length 2. */
if (! keyword_parsing)
for (toktab = tokentab2; toktab->operator != NULL; toktab++)
if (c == *toktab->operator && tokstart[1] == toktab->operator[1]) {
lexptr += 2;
if (toktab->token == ERROR)
{
char *buf = (char *) alloca (40);
sprintf (buf, "`%s' not allowed in operand of `#if'", toktab->operator);
yyerror (buf);
}
return toktab->token;
}
switch (c) {
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case '\n':
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 0;
case ' ':
case '\t':
case '\r':
lexptr++;
goto retry;
case 'L':
/* Capital L may start a wide-string or wide-character constant. */
if (lexptr[1] == '\'')
{
lexptr++;
wide_flag = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
mask = MAX_WCHAR_TYPE_MASK;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
goto char_constant;
}
if (lexptr[1] == '"')
{
lexptr++;
wide_flag = 1;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
mask = MAX_WCHAR_TYPE_MASK;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
goto string_constant;
}
break;
case '\'':
wide_flag = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
mask = MAX_CHAR_TYPE_MASK;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
char_constant:
lexptr++;
if (keyword_parsing) {
char *start_ptr = lexptr - 1;
while (1) {
c = *lexptr++;
if (c == '\\')
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
c = parse_escape (&lexptr, mask);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (c == '\'')
break;
}
yylval.name.address = tokstart;
yylval.name.length = lexptr - start_ptr;
return NAME;
}
/* This code for reading a character constant
handles multicharacter constants and wide characters.
It is mostly copied from c-lex.c. */
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
register HOST_WIDE_INT result = 0;
register int num_chars = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
unsigned width = MAX_CHAR_TYPE_SIZE;
int max_chars;
char *token_buffer;
if (wide_flag)
{
width = MAX_WCHAR_TYPE_SIZE;
#ifdef MULTIBYTE_CHARS
max_chars = MB_CUR_MAX;
#else
max_chars = 1;
#endif
}
else
max_chars = MAX_LONG_TYPE_SIZE / width;
token_buffer = (char *) alloca (max_chars + 1);
while (1)
{
c = *lexptr++;
if (c == '\'' || c == EOF)
break;
if (c == '\\')
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
c = parse_escape (&lexptr, mask);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
num_chars++;
/* Merge character into result; ignore excess chars. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (num_chars <= max_chars)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (width < HOST_BITS_PER_WIDE_INT)
result = (result << width) | c;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
result = c;
token_buffer[num_chars - 1] = c;
}
}
token_buffer[num_chars] = 0;
if (c != '\'')
error ("malformatted character constant");
else if (num_chars == 0)
error ("empty character constant");
else if (num_chars > max_chars)
{
num_chars = max_chars;
error ("character constant too long");
}
else if (num_chars != 1 && ! traditional)
warning ("multi-character character constant");
/* If char type is signed, sign-extend the constant. */
if (! wide_flag)
{
int num_bits = num_chars * width;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (lookup ((U_CHAR *) "__CHAR_UNSIGNED__",
sizeof ("__CHAR_UNSIGNED__") - 1, -1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
|| ((result >> (num_bits - 1)) & 1) == 0)
yylval.integer.value
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= result & (~ (unsigned_HOST_WIDE_INT) 0
>> (HOST_BITS_PER_WIDE_INT - num_bits));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else
yylval.integer.value
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
= result | ~(~ (unsigned_HOST_WIDE_INT) 0
>> (HOST_BITS_PER_WIDE_INT - num_bits));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
{
#ifdef MULTIBYTE_CHARS
/* Set the initial shift state and convert the next sequence. */
result = 0;
/* In all locales L'\0' is zero and mbtowc will return zero,
so don't use it. */
if (num_chars > 1
|| (num_chars == 1 && token_buffer[0] != '\0'))
{
wchar_t wc;
(void) mbtowc (NULL_PTR, NULL_PTR, 0);
if (mbtowc (& wc, token_buffer, num_chars) == num_chars)
result = wc;
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pedwarn ("Ignoring invalid multibyte character");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
#endif
yylval.integer.value = result;
}
}
/* This is always a signed type. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
yylval.integer.signedp = SIGNED;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return CHAR;
/* some of these chars are invalid in constant expressions;
maybe do something about them later */
case '/':
case '+':
case '-':
case '*':
case '%':
case '|':
case '&':
case '^':
case '~':
case '!':
case '@':
case '<':
case '>':
case '[':
case ']':
case '.':
case '?':
case ':':
case '=':
case '{':
case '}':
case ',':
case '#':
if (keyword_parsing)
break;
case '(':
case ')':
lexptr++;
return c;
case '"':
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
mask = MAX_CHAR_TYPE_MASK;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
string_constant:
if (keyword_parsing) {
char *start_ptr = lexptr;
lexptr++;
while (1) {
c = *lexptr++;
if (c == '\\')
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
c = parse_escape (&lexptr, mask);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (c == '"')
break;
}
yylval.name.address = tokstart;
yylval.name.length = lexptr - start_ptr;
return NAME;
}
yyerror ("string constants not allowed in #if expressions");
return ERROR;
}
if (c >= '0' && c <= '9' && !keyword_parsing) {
/* It's a number */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
for (namelen = 1; ; namelen++) {
int d = tokstart[namelen];
if (! ((is_idchar[d] || d == '.')
|| ((d == '-' || d == '+')
&& (c == 'e' || c == 'E'
|| ((c == 'p' || c == 'P') && ! c89))
&& ! traditional)))
break;
c = d;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return parse_number (namelen);
}
/* It is a name. See how long it is. */
if (keyword_parsing) {
for (namelen = 0;; namelen++) {
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (is_space[tokstart[namelen]])
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
if (tokstart[namelen] == '(' || tokstart[namelen] == ')')
break;
if (tokstart[namelen] == '"' || tokstart[namelen] == '\'')
break;
}
} else {
if (!is_idstart[c]) {
yyerror ("Invalid token in expression");
return ERROR;
}
for (namelen = 0; is_idchar[tokstart[namelen]]; namelen++)
;
}
lexptr += namelen;
yylval.name.address = tokstart;
yylval.name.length = namelen;
return NAME;
}
/* Parse a C escape sequence. STRING_PTR points to a variable
containing a pointer to the string to parse. That pointer
is updated past the characters we use. The value of the
escape sequence is returned.
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
RESULT_MASK is used to mask out the result;
an error is reported if bits are lost thereby.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
A negative value means the sequence \ newline was seen,
which is supposed to be equivalent to nothing at all.
If \ is followed by a null character, we return a negative
value and leave the string pointer pointing at the null character.
If \ is followed by 000, we return 0 and leave the string pointer
after the zeros. A value of 0 does not mean end of string. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
HOST_WIDE_INT
parse_escape (string_ptr, result_mask)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
char **string_ptr;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
HOST_WIDE_INT result_mask;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
register int c = *(*string_ptr)++;
switch (c)
{
case 'a':
return TARGET_BELL;
case 'b':
return TARGET_BS;
case 'e':
case 'E':
if (pedantic)
pedwarn ("non-ANSI-standard escape sequence, `\\%c'", c);
return 033;
case 'f':
return TARGET_FF;
case 'n':
return TARGET_NEWLINE;
case 'r':
return TARGET_CR;
case 't':
return TARGET_TAB;
case 'v':
return TARGET_VT;
case '\n':
return -2;
case 0:
(*string_ptr)--;
return 0;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
register HOST_WIDE_INT i = c - '0';
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
register int count = 0;
while (++count < 3)
{
c = *(*string_ptr)++;
if (c >= '0' && c <= '7')
i = (i << 3) + c - '0';
else
{
(*string_ptr)--;
break;
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (i != (i & result_mask))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
i &= result_mask;
pedwarn ("octal escape sequence out of range");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return i;
}
case 'x':
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
register unsigned_HOST_WIDE_INT i = 0, overflow = 0;
register int digits_found = 0, digit;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
for (;;)
{
c = *(*string_ptr)++;
if (c >= '0' && c <= '9')
digit = c - '0';
else if (c >= 'a' && c <= 'f')
digit = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
digit = c - 'A' + 10;
else
{
(*string_ptr)--;
break;
}
overflow |= i ^ (i << 4 >> 4);
i = (i << 4) + digit;
digits_found = 1;
}
if (!digits_found)
yyerror ("\\x used with no following hex digits");
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (overflow | (i != (i & result_mask)))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
i &= result_mask;
pedwarn ("hex escape sequence out of range");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return i;
}
default:
return c;
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static void
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
yyerror (s)
char *s;
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
error ("%s", s);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
skip_evaluation = 0;
longjmp (parse_return_error, 1);
}
static void
integer_overflow ()
{
if (!skip_evaluation && pedantic)
pedwarn ("integer overflow in preprocessor expression");
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static HOST_WIDE_INT
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
left_shift (a, b)
struct constant *a;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
unsigned_HOST_WIDE_INT b;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
/* It's unclear from the C standard whether shifts can overflow.
The following code ignores overflow; perhaps a C standard
interpretation ruling is needed. */
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (b >= HOST_BITS_PER_WIDE_INT)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return 0;
else
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
return (unsigned_HOST_WIDE_INT) a->value << b;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static HOST_WIDE_INT
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
right_shift (a, b)
struct constant *a;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
unsigned_HOST_WIDE_INT b;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (b >= HOST_BITS_PER_WIDE_INT)
return a->signedp ? a->value >> (HOST_BITS_PER_WIDE_INT - 1) : 0;
else if (a->signedp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return a->value >> b;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
return (unsigned_HOST_WIDE_INT) a->value >> b;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* This page contains the entry point to this file. */
/* Parse STRING as an expression, and complain if this fails
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
to use up all of the contents of STRING.
STRING may contain '\0' bytes; it is terminated by the first '\n'
outside a string constant, so that we can diagnose '\0' properly.
If WARN_UNDEFINED is nonzero, warn if undefined identifiers are evaluated.
We do not support C comments. They should be removed before
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
this function is called. */
HOST_WIDE_INT
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
parse_c_expression (string, warn_undefined)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
char *string;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
int warn_undefined;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
lexptr = string;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
warn_undef = warn_undefined;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* if there is some sort of scanning error, just return 0 and assume
the parsing routine has printed an error message somewhere.
there is surely a better thing to do than this. */
if (setjmp (parse_return_error))
return 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (yyparse () != 0)
abort ();
if (*lexptr != '\n')
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
error ("Junk after end of expression.");
return expression_value; /* set by yyparse () */
}
#ifdef TEST_EXP_READER
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#if YYDEBUG
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
extern int yydebug;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#endif
int pedantic;
int traditional;
int main PROTO((int, char **));
static void initialize_random_junk PROTO((void));
static void print_unsigned_host_wide_int PROTO((unsigned_HOST_WIDE_INT));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Main program for testing purposes. */
int
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
main (argc, argv)
int argc;
char **argv;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
int n, c;
char buf[1024];
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
unsigned_HOST_WIDE_INT u;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
pedantic = 1 < argc;
traditional = 2 < argc;
#if YYDEBUG
yydebug = 3 < argc;
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
initialize_random_junk ();
for (;;) {
printf ("enter expression: ");
n = 0;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
while ((buf[n] = c = getchar ()) != '\n' && c != EOF)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
n++;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
if (c == EOF)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
parse_c_expression (buf, 1);
printf ("parser returned ");
u = (unsigned_HOST_WIDE_INT) expression_value;
if (expression_value < 0 && expression_signedp) {
u = -u;
printf ("-");
}
if (u == 0)
printf ("0");
else
print_unsigned_host_wide_int (u);
if (! expression_signedp)
printf("u");
printf ("\n");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
return 0;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static void
print_unsigned_host_wide_int (u)
unsigned_HOST_WIDE_INT u;
{
if (u) {
print_unsigned_host_wide_int (u / 10);
putchar ('0' + (int) (u % 10));
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* table to tell if char can be part of a C identifier. */
unsigned char is_idchar[256];
/* table to tell if char can be first char of a c identifier. */
unsigned char is_idstart[256];
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* table to tell if c is horizontal or vertical space. */
unsigned char is_space[256];
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/*
* initialize random junk in the hash table and maybe other places
*/
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
static void
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
initialize_random_junk ()
{
register int i;
/*
* Set up is_idchar and is_idstart tables. These should be
* faster than saying (is_alpha (c) || c == '_'), etc.
* Must do set up these things before calling any routines tthat
* refer to them.
*/
for (i = 'a'; i <= 'z'; i++) {
++is_idchar[i - 'a' + 'A'];
++is_idchar[i];
++is_idstart[i - 'a' + 'A'];
++is_idstart[i];
}
for (i = '0'; i <= '9'; i++)
++is_idchar[i];
++is_idchar['_'];
++is_idstart['_'];
++is_idchar['$'];
++is_idstart['$'];
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
++is_space[' '];
++is_space['\t'];
++is_space['\v'];
++is_space['\f'];
++is_space['\n'];
++is_space['\r'];
}
void
error VPROTO ((char * msg, ...))
{
#ifndef __STDC__
char * msg;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
va_list args;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
VA_START (args, msg);
#ifndef __STDC__
msg = va_arg (args, char *);
#endif
fprintf (stderr, "error: ");
vfprintf (stderr, msg, args);
fprintf (stderr, "\n");
va_end (args);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
pedwarn VPROTO ((char * msg, ...))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifndef __STDC__
char * msg;
#endif
va_list args;
VA_START (args, msg);
#ifndef __STDC__
msg = va_arg (args, char *);
#endif
fprintf (stderr, "pedwarn: ");
vfprintf (stderr, msg, args);
fprintf (stderr, "\n");
va_end (args);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
void
warning VPROTO ((char * msg, ...))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#ifndef __STDC__
char * msg;
#endif
va_list args;
VA_START (args, msg);
#ifndef __STDC__
msg = va_arg (args, char *);
#endif
fprintf (stderr, "warning: ");
vfprintf (stderr, msg, args);
fprintf (stderr, "\n");
va_end (args);
}
int
check_assertion (name, sym_length, tokens_specified, tokens)
U_CHAR *name;
int sym_length;
int tokens_specified;
struct arglist *tokens;
{
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
struct hashnode *
lookup (name, len, hash)
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
U_CHAR *name;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
int len;
int hash;
{
return (DEFAULT_SIGNED_CHAR) ? 0 : ((struct hashnode *) -1);
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
GENERIC_PTR
xmalloc (size)
size_t size;
{
return (GENERIC_PTR) malloc (size);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#endif
Reference in New Issue Copy Permalink