1 /* ===-- int_lib.h - configuration header for compiler-rt -----------------=== 2 * 3 * The LLVM Compiler Infrastructure 4 * 5 * This file is distributed under the University of Illinois Open Source 6 * License. See LICENSE.TXT for details. 7 * 8 * ===----------------------------------------------------------------------=== 9 * 10 * This file is a configuration header for compiler-rt. 11 * This file is not part of the interface of this library. 12 * 13 * ===----------------------------------------------------------------------=== 14 */ 15 16 #ifndef INT_LIB_H 17 #define INT_LIB_H 18 19 /* Assumption: signed integral is 2's complement */ 20 /* Assumption: right shift of signed negative is arithmetic shift */ 21 22 #include <limits.h> 23 #include "endianness.h" 24 #include <math.h> 25 26 #if !defined(INFINITY) && defined(HUGE_VAL) 27 #define INFINITY HUGE_VAL 28 #endif /* INFINITY */ 29 30 typedef int si_int; 31 typedef unsigned su_int; 32 33 typedef long long di_int; 34 typedef unsigned long long du_int; 35 36 typedef union 37 { 38 di_int all; 39 struct 40 { 41 #if _YUGA_LITTLE_ENDIAN 42 su_int low; 43 si_int high; 44 #else 45 si_int high; 46 su_int low; 47 #endif /* _YUGA_LITTLE_ENDIAN */ 48 }s; 49 } dwords; 50 51 typedef union 52 { 53 du_int all; 54 struct 55 { 56 #if _YUGA_LITTLE_ENDIAN 57 su_int low; 58 su_int high; 59 #else 60 su_int high; 61 su_int low; 62 #endif /* _YUGA_LITTLE_ENDIAN */ 63 }s; 64 } udwords; 65 66 #if __x86_64 67 68 typedef int ti_int __attribute__ ((mode (TI))); 69 typedef unsigned tu_int __attribute__ ((mode (TI))); 70 71 typedef union 72 { 73 ti_int all; 74 struct 75 { 76 #if _YUGA_LITTLE_ENDIAN 77 du_int low; 78 di_int high; 79 #else 80 di_int high; 81 du_int low; 82 #endif /* _YUGA_LITTLE_ENDIAN */ 83 }s; 84 } twords; 85 86 typedef union 87 { 88 tu_int all; 89 struct 90 { 91 #if _YUGA_LITTLE_ENDIAN 92 du_int low; 93 du_int high; 94 #else 95 du_int high; 96 du_int low; 97 #endif /* _YUGA_LITTLE_ENDIAN */ 98 }s; 99 } utwords; 100 make_ti(di_int h,di_int l)101static inline ti_int make_ti(di_int h, di_int l) { 102 twords r; 103 r.s.high = h; 104 r.s.low = l; 105 return r.all; 106 } 107 make_tu(du_int h,du_int l)108static inline tu_int make_tu(du_int h, du_int l) { 109 utwords r; 110 r.s.high = h; 111 r.s.low = l; 112 return r.all; 113 } 114 115 #endif /* __x86_64 */ 116 117 typedef union 118 { 119 su_int u; 120 float f; 121 } float_bits; 122 123 typedef union 124 { 125 udwords u; 126 double f; 127 } double_bits; 128 129 typedef struct 130 { 131 #if _YUGA_LITTLE_ENDIAN 132 udwords low; 133 udwords high; 134 #else 135 udwords high; 136 udwords low; 137 #endif /* _YUGA_LITTLE_ENDIAN */ 138 } uqwords; 139 140 typedef union 141 { 142 uqwords u; 143 long double f; 144 } long_double_bits; 145 146 #endif /* INT_LIB_H */ 147