gcc/hwint.h

   1 /* HOST_WIDE_INT definitions for the GNU compiler.
   2    Copyright (C) 1998 Free Software Foundation, Inc.
   3
   4    This file is part of GCC.
   5
   6    Provide definitions for macros which depend on HOST_BITS_PER_INT
   7    and HOST_BITS_PER_LONG.  */
   8
   9 #ifndef GCC_HWINT_H
  10 #define GCC_HWINT_H
  11
  12 /* This describes the machine the compiler is hosted on.  */
  13 #define HOST_BITS_PER_CHAR  CHAR_BIT
  14 #define HOST_BITS_PER_SHORT (CHAR_BIT * SIZEOF_SHORT)
  15 #define HOST_BITS_PER_INT   (CHAR_BIT * SIZEOF_INT)
  16 #define HOST_BITS_PER_LONG  (CHAR_BIT * SIZEOF_LONG)
  17
  18 #ifdef HAVE_LONG_LONG
  19 # define HOST_BITS_PER_LONGLONG (CHAR_BIT * SIZEOF_LONG_LONG)
  20 #else
  21 #ifdef HAVE__INT64
  22 # define HOST_BITS_PER_LONGLONG (CHAR_BIT * SIZEOF___INT64)
  23 #else
  24 /* If we're here and we're GCC, assume this is stage 2+ of a bootstrap
  25    and 'long long' has the width of the *target*'s long long.  */
  26 # if GCC_VERSION > 3000
  27 #  define HOST_BITS_PER_LONGLONG LONG_LONG_TYPE_SIZE
  28 # endif /* gcc */
  29 #endif
  30 #endif /* no long long */
  31
  32 /* Find the largest host integer type and set its size and type.  */
  33
  34 /* Use long long on the host if the target has a wider long type than
  35    the host.  */
  36
  37 #if ! defined HOST_BITS_PER_WIDE_INT \
  38     && defined HOST_BITS_PER_LONGLONG \
  39     && (HOST_BITS_PER_LONGLONG > HOST_BITS_PER_LONG) \
  40     && (defined (LONG_LONG_MAX) || defined (LONGLONG_MAX) \
  41         || defined (LLONG_MAX) || defined (__GNUC__))
  42
  43 # ifdef MAX_LONG_TYPE_SIZE
  44 #  if MAX_LONG_TYPE_SIZE > HOST_BITS_PER_LONG
  45 #   define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONGLONG
  46 #   define HOST_WIDE_INT long long
  47 #  endif
  48 # else
  49 #  if LONG_TYPE_SIZE > HOST_BITS_PER_LONG
  50 #   define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONGLONG
  51 #   define HOST_WIDE_INT long long
  52 #  endif
  53 # endif
  54
  55 #endif
  56
  57 #ifndef HOST_BITS_PER_WIDE_INT
  58
  59 # if HOST_BITS_PER_LONG > HOST_BITS_PER_INT
  60 #  define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG
  61 #  define HOST_WIDE_INT long
  62 # else
  63 #  define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_INT
  64 #  define HOST_WIDE_INT int
  65 # endif
  66
  67 #endif /* ! HOST_BITS_PER_WIDE_INT */
  68
  69 /* Provide defaults for the way to print a HOST_WIDE_INT
  70    in various manners.  */
  71
  72 #ifndef HOST_WIDE_INT_PRINT_DEC
  73 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  74 #  define HOST_WIDE_INT_PRINT_DEC "%d"
  75 # else
  76 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
  77 #   define HOST_WIDE_INT_PRINT_DEC "%ld"
  78 #  else
  79 #   define HOST_WIDE_INT_PRINT_DEC "%lld"
  80 #  endif
  81 # endif
  82 #endif /* ! HOST_WIDE_INT_PRINT_DEC */
  83
  84 #ifndef HOST_WIDE_INT_PRINT_UNSIGNED
  85 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  86 #  define HOST_WIDE_INT_PRINT_UNSIGNED "%u"
  87 # else
  88 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
  89 #   define HOST_WIDE_INT_PRINT_UNSIGNED "%lu"
  90 #  else
  91 #   define HOST_WIDE_INT_PRINT_UNSIGNED "%llu"
  92 #  endif
  93 # endif
  94 #endif /* ! HOST_WIDE_INT_PRINT_UNSIGNED */
  95
  96 #ifndef HOST_WIDE_INT_PRINT_HEX
  97 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  98 #  define HOST_WIDE_INT_PRINT_HEX "0x%x"
  99 # else
 100 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
 101 #   define HOST_WIDE_INT_PRINT_HEX "0x%lx"
 102 #  else
 103 #   define HOST_WIDE_INT_PRINT_HEX "0x%llx"
 104 #  endif
 105 # endif
 106 #endif /* ! HOST_WIDE_INT_PRINT_HEX */
 107
 108 #ifndef HOST_WIDE_INT_PRINT_DOUBLE_HEX
 109 # if HOST_BITS_PER_WIDE_INT == 64
 110 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
 111 #   define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%x%016x"
 112 #  else
 113 #   if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
 114 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%016lx"
 115 #   else
 116 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%llx%016llx"
 117 #   endif
 118 #  endif
 119 # else
 120 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
 121 #   define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%x%08x"
 122 #  else
 123 #   if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
 124 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%08lx"
 125 #   else
 126 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%llx%08llx"
 127 #   endif
 128 #  endif
 129 # endif
 130 #endif /* ! HOST_WIDE_INT_PRINT_DOUBLE_HEX */
 131
 132 /* Find HOST_WIDEST_INT and set its bit size, type and print macros.
 133    It will be the largest integer mode supported by the host which may
 134    (or may not) be larger than HOST_WIDE_INT.  */
 135
 136 #ifndef HOST_WIDEST_INT
 137 #if defined HOST_BITS_PER_LONGLONG \
 138     && HOST_BITS_PER_LONGLONG > HOST_BITS_PER_LONG
 139 #   define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONGLONG
 140 #   define HOST_WIDEST_INT long long
 141 #   define HOST_WIDEST_INT_PRINT_DEC "%lld"
 142 #   define HOST_WIDEST_INT_PRINT_UNSIGNED "%llu"
 143 #   define HOST_WIDEST_INT_PRINT_HEX "0x%llx"
 144 #  else
 145 #   define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONG
 146 #   define HOST_WIDEST_INT long
 147 #   define HOST_WIDEST_INT_PRINT_DEC "%ld"
 148 #   define HOST_WIDEST_INT_PRINT_UNSIGNED "%lu"
 149 #   define HOST_WIDEST_INT_PRINT_HEX "0x%lx"
 150 # endif /* long long wider than long */
 151 #endif /* ! HOST_WIDEST_INT */
 152
 153 #endif /* ! GCC_HWINT_H */