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 
make_ti(di_int h,di_int l)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 
make_tu(du_int h,du_int l)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 
144