lib/int_types.h

   1 /* ===-- int_lib.h - configuration header for compiler-rt  -----------------===
   2  *
   3  *                     The LLVM Compiler Infrastructure
   4  *
   5  * This file is dual licensed under the MIT and the University of Illinois Open
   6  * Source Licenses. See LICENSE.TXT for details.
   7  *
   8  * ===----------------------------------------------------------------------===
   9  *
  10  * This file is not part of the interface of this library.
  11  *
  12  * This file defines various standard types, most importantly a number of unions
  13  * used to access parts of larger types.
  14  *
  15  * ===----------------------------------------------------------------------===
  16  */
  17
  18 #ifndef INT_TYPES_H
  19 #define INT_TYPES_H
  20
  21 #include "int_endianness.h"
  22
  23 typedef      int si_int;
  24 typedef unsigned su_int;
  25
  26 typedef          long long di_int;
  27 typedef unsigned long long du_int;
  28
  29 typedef union
  30 {
  31     di_int all;
  32     struct
  33     {
  34 #if _YUGA_LITTLE_ENDIAN
  35         su_int low;
  36         si_int high;
  37 #else
  38         si_int high;
  39         su_int low;
  40 #endif /* _YUGA_LITTLE_ENDIAN */
  41     }s;
  42 } dwords;
  43
  44 typedef union
  45 {
  46     du_int all;
  47     struct
  48     {
  49 #if _YUGA_LITTLE_ENDIAN
  50         su_int low;
  51         su_int high;
  52 #else
  53         su_int high;
  54         su_int low;
  55 #endif /* _YUGA_LITTLE_ENDIAN */
  56     }s;
  57 } udwords;
  58
  59 #if __x86_64
  60
  61 typedef int      ti_int __attribute__ ((mode (TI)));
  62 typedef unsigned tu_int __attribute__ ((mode (TI)));
  63
  64 typedef union
  65 {
  66     ti_int all;
  67     struct
  68     {
  69 #if _YUGA_LITTLE_ENDIAN
  70         du_int low;
  71         di_int high;
  72 #else
  73         di_int high;
  74         du_int low;
  75 #endif /* _YUGA_LITTLE_ENDIAN */
  76     }s;
  77 } twords;
  78
  79 typedef union
  80 {
  81     tu_int all;
  82     struct
  83     {
  84 #if _YUGA_LITTLE_ENDIAN
  85         du_int low;
  86         du_int high;
  87 #else
  88         du_int high;
  89         du_int low;
  90 #endif /* _YUGA_LITTLE_ENDIAN */
  91     }s;
  92 } utwords;
  93
  94 static inline ti_int make_ti(di_int h, di_int l) {
  95     twords r;
  96     r.s.high = h;
  97     r.s.low = l;
  98     return r.all;
  99 }
 100
 101 static inline tu_int make_tu(du_int h, du_int l) {
 102     utwords r;
 103     r.s.high = h;
 104     r.s.low = l;
 105     return r.all;
 106 }
 107
 108 #endif /* __x86_64 */
 109
 110 typedef union
 111 {
 112     su_int u;
 113     float f;
 114 } float_bits;
 115
 116 typedef union
 117 {
 118     udwords u;
 119     double  f;
 120 } double_bits;
 121
 122 typedef struct
 123 {
 124 #if _YUGA_LITTLE_ENDIAN
 125     udwords low;
 126     udwords high;
 127 #else
 128     udwords high;
 129     udwords low;
 130 #endif /* _YUGA_LITTLE_ENDIAN */
 131 } uqwords;
 132
 133 typedef union
 134 {
 135     uqwords     u;
 136     long double f;
 137 } long_double_bits;
 138
 139 #endif /* INT_TYPES_H */
 140