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