lib/builtins/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 __LP64__
  60 #define CRT_HAS_128BIT
  61 #endif
  62
  63 #ifdef CRT_HAS_128BIT
  64 typedef int      ti_int __attribute__ ((mode (TI)));
  65 typedef unsigned tu_int __attribute__ ((mode (TI)));
  66
  67 typedef union
  68 {
  69     ti_int all;
  70     struct
  71     {
  72 #if _YUGA_LITTLE_ENDIAN
  73         du_int low;
  74         di_int high;
  75 #else
  76         di_int high;
  77         du_int low;
  78 #endif /* _YUGA_LITTLE_ENDIAN */
  79     }s;
  80 } twords;
  81
  82 typedef union
  83 {
  84     tu_int all;
  85     struct
  86     {
  87 #if _YUGA_LITTLE_ENDIAN
  88         du_int low;
  89         du_int high;
  90 #else
  91         du_int high;
  92         du_int low;
  93 #endif /* _YUGA_LITTLE_ENDIAN */
  94     }s;
  95 } utwords;
  96
  97 static inline ti_int make_ti(di_int h, di_int l) {
  98     twords r;
  99     r.s.high = h;
 100     r.s.low = l;
 101     return r.all;
 102 }
 103
 104 static inline tu_int make_tu(du_int h, du_int l) {
 105     utwords r;
 106     r.s.high = h;
 107     r.s.low = l;
 108     return r.all;
 109 }
 110
 111 #endif /* CRT_HAS_128BIT */
 112
 113 typedef union
 114 {
 115     su_int u;
 116     float f;
 117 } float_bits;
 118
 119 typedef union
 120 {
 121     udwords u;
 122     double  f;
 123 } double_bits;
 124
 125 typedef struct
 126 {
 127 #if _YUGA_LITTLE_ENDIAN
 128     udwords low;
 129     udwords high;
 130 #else
 131     udwords high;
 132     udwords low;
 133 #endif /* _YUGA_LITTLE_ENDIAN */
 134 } uqwords;
 135
 136 typedef union
 137 {
 138     uqwords     u;
 139     long double f;
 140 } long_double_bits;
 141
 142 #endif /* INT_TYPES_H */
 143