src/compiler-rt/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 /* MIPS64 issue: PR 20098 */
  60 #if defined(__LP64__) && !(defined(__mips__) && defined(__clang__))
  61 #define CRT_HAS_128BIT
  62 #endif
  63
  64 #ifdef CRT_HAS_128BIT
  65 typedef int      ti_int __attribute__ ((mode (TI)));
  66 typedef unsigned tu_int __attribute__ ((mode (TI)));
  67
  68 typedef union
  69 {
  70     ti_int all;
  71     struct
  72     {
  73 #if _YUGA_LITTLE_ENDIAN
  74         du_int low;
  75         di_int high;
  76 #else
  77         di_int high;
  78         du_int low;
  79 #endif /* _YUGA_LITTLE_ENDIAN */
  80     }s;
  81 } twords;
  82
  83 typedef union
  84 {
  85     tu_int all;
  86     struct
  87     {
  88 #if _YUGA_LITTLE_ENDIAN
  89         du_int low;
  90         du_int high;
  91 #else
  92         du_int high;
  93         du_int low;
  94 #endif /* _YUGA_LITTLE_ENDIAN */
  95     }s;
  96 } utwords;
  97
  98 static __inline ti_int make_ti(di_int h, di_int l) {
  99     twords r;
 100     r.s.high = h;
 101     r.s.low = l;
 102     return r.all;
 103 }
 104
 105 static __inline tu_int make_tu(du_int h, du_int l) {
 106     utwords r;
 107     r.s.high = h;
 108     r.s.low = l;
 109     return r.all;
 110 }
 111
 112 #endif /* CRT_HAS_128BIT */
 113
 114 typedef union
 115 {
 116     su_int u;
 117     float f;
 118 } float_bits;
 119
 120 typedef union
 121 {
 122     udwords u;
 123     double  f;
 124 } double_bits;
 125
 126 typedef struct
 127 {
 128 #if _YUGA_LITTLE_ENDIAN
 129     udwords low;
 130     udwords high;
 131 #else
 132     udwords high;
 133     udwords low;
 134 #endif /* _YUGA_LITTLE_ENDIAN */
 135 } uqwords;
 136
 137 typedef union
 138 {
 139     uqwords     u;
 140     long double f;
 141 } long_double_bits;
 142
 143 #if __STDC_VERSION__ >= 199901L
 144 typedef float _Complex Fcomplex;
 145 typedef double _Complex Dcomplex;
 146 typedef long double _Complex Lcomplex;
 147
 148 #define COMPLEX_REAL(x) __real__(x)
 149 #define COMPLEX_IMAGINARY(x) __imag__(x)
 150 #else
 151 typedef struct { float real, imaginary; } Fcomplex;
 152
 153 typedef struct { double real, imaginary; } Dcomplex;
 154
 155 typedef struct { long double real, imaginary; } Lcomplex;
 156
 157 #define COMPLEX_REAL(x) (x).real
 158 #define COMPLEX_IMAGINARY(x) (x).imaginary
 159 #endif
 160 #endif /* INT_TYPES_H */
 161