1 //===-- fixxfti_test.c - Test __fixxfti -----------------------------------===// 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 tests __fixxfti for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 #ifdef CRT_HAS_128BIT 18 19 // Returns: convert a to a signed long long, rounding toward zero. 20 21 // Assumption: long double is an intel 80 bit floating point type padded with 6 bytes 22 // su_int is a 32 bit integral type 23 // value in long double is representable in ti_int (no range checking performed) 24 25 // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | 26 // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 27 28 COMPILER_RT_ABI ti_int __fixxfti(long double a); 29 30 int test__fixxfti(long double a, ti_int expected) 31 { 32 ti_int x = __fixxfti(a); 33 if (x != expected) 34 { 35 utwords xt; 36 xt.all = x; 37 utwords expectedt; 38 expectedt.all = expected; 39 printf("error in __fixxfti(%LA) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n", 40 a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low); 41 } 42 return x != expected; 43 } 44 45 char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; 46 char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; 47 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; 48 49 #endif 50 51 int main() 52 { 53 #ifdef CRT_HAS_128BIT 54 if (test__fixxfti(0.0, 0)) 55 return 1; 56 57 if (test__fixxfti(0.5, 0)) 58 return 1; 59 if (test__fixxfti(0.99, 0)) 60 return 1; 61 if (test__fixxfti(1.0, 1)) 62 return 1; 63 if (test__fixxfti(1.5, 1)) 64 return 1; 65 if (test__fixxfti(1.99, 1)) 66 return 1; 67 if (test__fixxfti(2.0, 2)) 68 return 1; 69 if (test__fixxfti(2.01, 2)) 70 return 1; 71 if (test__fixxfti(-0.5, 0)) 72 return 1; 73 if (test__fixxfti(-0.99, 0)) 74 return 1; 75 if (test__fixxfti(-1.0, -1)) 76 return 1; 77 if (test__fixxfti(-1.5, -1)) 78 return 1; 79 if (test__fixxfti(-1.99, -1)) 80 return 1; 81 if (test__fixxfti(-2.0, -2)) 82 return 1; 83 if (test__fixxfti(-2.01, -2)) 84 return 1; 85 86 if (test__fixxfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL)) 87 return 1; 88 if (test__fixxfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL)) 89 return 1; 90 91 if (test__fixxfti(-0x1.FFFFFEp+62, make_ti(0xFFFFFFFFFFFFFFFFLL, 92 0x8000008000000000LL))) 93 return 1; 94 if (test__fixxfti(-0x1.FFFFFCp+62, make_ti(0xFFFFFFFFFFFFFFFFLL, 95 0x8000010000000000LL))) 96 return 1; 97 98 if (test__fixxfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL)) 99 return 1; 100 if (test__fixxfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL)) 101 return 1; 102 103 if (test__fixxfti(-0x1.FFFFFFFFFFFFFp+62, make_ti(0xFFFFFFFFFFFFFFFFLL, 104 0x8000000000000400LL))) 105 return 1; 106 if (test__fixxfti(-0x1.FFFFFFFFFFFFEp+62, make_ti(0xFFFFFFFFFFFFFFFFLL, 107 0x8000000000000800LL))) 108 return 1; 109 110 if (test__fixxfti(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL)) 111 return 1; 112 if (test__fixxfti(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL)) 113 return 1; 114 115 if (test__fixxfti(-0x1.0000000000000000p+63L, make_ti(0xFFFFFFFFFFFFFFFFLL, 116 0x8000000000000000LL))) 117 return 1; 118 if (test__fixxfti(-0x1.FFFFFFFFFFFFFFFCp+62L, make_ti(0xFFFFFFFFFFFFFFFFLL, 119 0x8000000000000001LL))) 120 return 1; 121 if (test__fixxfti(-0x1.FFFFFFFFFFFFFFF8p+62L, make_ti(0xFFFFFFFFFFFFFFFFLL, 122 0x8000000000000002LL))) 123 return 1; 124 125 if (test__fixxfti(0x1.FFFFFFFFFFFFFFFEp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL, 126 0x8000000000000000LL))) 127 return 1; 128 if (test__fixxfti(0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL, 129 0x0000000000000000LL))) 130 131 return 1; 132 133 if (test__fixxfti(-0x1.0000000000000000p+127L, make_ti(0x8000000000000000LL, 134 0x0000000000000000LL))) 135 return 1; 136 if (test__fixxfti(-0x1.FFFFFFFFFFFFFFFEp+126L, make_ti(0x8000000000000000LL, 137 0x8000000000000000LL))) 138 return 1; 139 if (test__fixxfti(-0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x8000000000000001LL, 140 0x0000000000000000LL))) 141 return 1; 142 #else 143 printf("skipped\n"); 144 #endif 145 return 0; 146 } 147
