Subversion Repositories openrisc_2011-10-31

/* HOST_WIDE_INT definitions for the GNU compiler.

   Copyright (C) 1998, 2002, 2004 Free Software Foundation, Inc.

   This file is part of GCC.

   Provide definitions for macros which depend on HOST_BITS_PER_INT

   and HOST_BITS_PER_LONG.  */

#ifndef GCC_HWINT_H

#define GCC_HWINT_H

/* This describes the machine the compiler is hosted on.  */

#define HOST_BITS_PER_CHAR  CHAR_BIT

#define HOST_BITS_PER_SHORT (CHAR_BIT * SIZEOF_SHORT)

#define HOST_BITS_PER_INT   (CHAR_BIT * SIZEOF_INT)

#define HOST_BITS_PER_LONG  (CHAR_BIT * SIZEOF_LONG)

/* The string that should be inserted into a printf style format to

   indicate a "long long" operand.  */

#ifndef HOST_LONG_LONG_FORMAT 

#define HOST_LONG_LONG_FORMAT "ll"

#endif

/* If HAVE_LONG_LONG and SIZEOF_LONG_LONG aren't defined, but

   GCC_VERSION >= 3000, assume this is the second or later stage of a

   bootstrap, we do have long long, and it's 64 bits.  (This is

   required by C99; we do have some ports that violate that assumption

   but they're all cross-compile-only.)  Just in case, force a

   constraint violation if that assumption is incorrect.  */

#if !defined HAVE_LONG_LONG

# if GCC_VERSION >= 3000

#  define HAVE_LONG_LONG 1

#  define SIZEOF_LONG_LONG 8

extern char sizeof_long_long_must_be_8[sizeof(long long) == 8 ? 1 : -1];

# endif

#endif

#ifdef HAVE_LONG_LONG

# define HOST_BITS_PER_LONGLONG (CHAR_BIT * SIZEOF_LONG_LONG)

#endif

#ifdef HAVE___INT64

# define HOST_BITS_PER___INT64 (CHAR_BIT * SIZEOF___INT64)

#endif

/* Set HOST_WIDE_INT.  This should be the widest efficient host

   integer type.  It can be 32 or 64 bits, except that if we are

   targeting a machine with 64-bit size_t then it has to be 64 bits.

   With a sane ABI, 'long' is the largest efficient host integer type.

   Thus, we use that unless we have to use 'long long' or '__int64'

   because we're targeting a 64-bit machine from a 32-bit host.  */

#if HOST_BITS_PER_LONG >= 64 || !defined NEED_64BIT_HOST_WIDE_INT

#   define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG

#   define HOST_WIDE_INT long

#else

# if HOST_BITS_PER_LONGLONG >= 64

#   define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONGLONG

#   define HOST_WIDE_INT long long

# else

#  if HOST_BITS_PER___INT64 >= 64

#   define HOST_BITS_PER_WIDE_INT HOST_BITS_PER___INT64

#   define HOST_WIDE_INT __int64

#  else

    #error "Unable to find a suitable type for HOST_WIDE_INT"

#  endif

# endif

#endif

/* Various printf format strings for HOST_WIDE_INT.  */

#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG

# define HOST_WIDE_INT_PRINT "l"

# define HOST_WIDE_INT_PRINT_C "L"

  /* 'long' might be 32 or 64 bits, and the number of leading zeroes

     must be tweaked accordingly.  */

# if HOST_BITS_PER_WIDE_INT == 64

#  define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%016lx"

# else

#  define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%08lx"

# endif

#else

# define HOST_WIDE_INT_PRINT HOST_LONG_LONG_FORMAT

# define HOST_WIDE_INT_PRINT_C "LL"

  /* We can assume that 'long long' is at least 64 bits.  */

# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \

    "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x"

#endif /* HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG */

#define HOST_WIDE_INT_PRINT_DEC "%" HOST_WIDE_INT_PRINT "d"

#define HOST_WIDE_INT_PRINT_DEC_C HOST_WIDE_INT_PRINT_DEC HOST_WIDE_INT_PRINT_C

#define HOST_WIDE_INT_PRINT_UNSIGNED "%" HOST_WIDE_INT_PRINT "u"

#define HOST_WIDE_INT_PRINT_HEX "0x%" HOST_WIDE_INT_PRINT "x"

/* Set HOST_WIDEST_INT.  This is a 64-bit type unless the compiler

   in use has no 64-bit type at all; in that case it's 32 bits.  */

#if HOST_BITS_PER_WIDE_INT >= 64 \

    || (HOST_BITS_PER_LONGLONG < 64 && HOST_BITS_PER___INT64 < 64)

# define HOST_WIDEST_INT                      HOST_WIDE_INT

# define HOST_BITS_PER_WIDEST_INT             HOST_BITS_PER_WIDE_INT

# define HOST_WIDEST_INT_PRINT_DEC            HOST_WIDE_INT_PRINT_DEC

# define HOST_WIDEST_INT_PRINT_DEC_C          HOST_WIDE_INT_PRINT_DEC_C

# define HOST_WIDEST_INT_PRINT_UNSIGNED       HOST_WIDE_INT_PRINT_UNSIGNED

# define HOST_WIDEST_INT_PRINT_HEX            HOST_WIDE_INT_PRINT_HEX

# define HOST_WIDEST_INT_PRINT_DOUBLE_HEX     HOST_WIDE_INT_PRINT_DOUBLE_HEX

#else

# if HOST_BITS_PER_LONGLONG >= 64

#  define HOST_BITS_PER_WIDEST_INT            HOST_BITS_PER_LONGLONG

#  define HOST_WIDEST_INT                     long long

# else

#  if HOST_BITS_PER___INT64 >= 64

#   define HOST_BITS_PER_WIDEST_INT           HOST_BITS_PER___INT64

#   define HOST_WIDEST_INT                    __int64

#  else

    #error "This line should be impossible to reach"

#  endif

# endif

# define HOST_WIDEST_INT_PRINT_DEC            "%" HOST_LONG_LONG_FORMAT "d"

# define HOST_WIDEST_INT_PRINT_DEC_C          "%" HOST_LONG_LONG_FORMAT "dLL"

# define HOST_WIDEST_INT_PRINT_UNSIGNED       "%" HOST_LONG_LONG_FORMAT "u"

# define HOST_WIDEST_INT_PRINT_HEX            "0x%" HOST_LONG_LONG_FORMAT "x"

# define HOST_WIDEST_INT_PRINT_DOUBLE_HEX     \

    "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x"

#endif

/* Define HOST_WIDEST_FAST_INT to the widest integer type supported

   efficiently in hardware.  (That is, the widest integer type that fits

   in a hardware register.)  Normally this is "long" but on some hosts it

   should be "long long" or "__int64".  This is no convenient way to

   autodect this, so such systems must set a flag in config.host; see there

   for details.  */

#ifdef USE_LONG_LONG_FOR_WIDEST_FAST_INT

#  ifdef HAVE_LONG_LONG

#    define HOST_WIDEST_FAST_INT long long

#    define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONGLONG

#  elif defined (HAVE___INT64)

#    define HOST_WIDEST_FAST_INT __int64

#    define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER___INT64

#  else

#    error "Your host said it wantted to use long long or __int64 but neither"

#    error "exist"

#  endif

#else

#  define HOST_WIDEST_FAST_INT long

#  define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONG

#endif

#endif /* ! GCC_HWINT_H */