1 //===-- fixunsxfti_test.c - Test __fixunsxfti -----------------------------===// 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 __fixunsxfti for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #if __x86_64 15 16 #include "int_lib.h" 17 #include <stdio.h> 18 19 // Returns: convert a to a unsigned long long, rounding toward zero. 20 // Negative values all become zero. 21 22 // Assumption: long double is an intel 80 bit floating point type padded with 6 bytes 23 // tu_int is a 64 bit integral type 24 // value in long double is representable in tu_int or is negative 25 // (no range checking performed) 26 27 // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | 28 // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 29 30 tu_int __fixunsxfti(long double a); 31 32 int test__fixunsxfti(long double a, tu_int expected) 33 { 34 tu_int x = __fixunsxfti(a); 35 if (x != expected) 36 { 37 utwords xt; 38 xt.all = x; 39 utwords expectedt; 40 expectedt.all = expected; 41 printf("error in __fixunsxfti(%LA) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n", 42 a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low); 43 } 44 return x != expected; 45 } 46 47 char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0}; 48 char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0}; 49 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; 50 51 #endif 52 53 int main() 54 { 55 #if __x86_64 56 if (test__fixunsxfti(0.0, 0)) 57 return 1; 58 59 if (test__fixunsxfti(0.5, 0)) 60 return 1; 61 if (test__fixunsxfti(0.99, 0)) 62 return 1; 63 if (test__fixunsxfti(1.0, 1)) 64 return 1; 65 if (test__fixunsxfti(1.5, 1)) 66 return 1; 67 if (test__fixunsxfti(1.99, 1)) 68 return 1; 69 if (test__fixunsxfti(2.0, 2)) 70 return 1; 71 if (test__fixunsxfti(2.01, 2)) 72 return 1; 73 if (test__fixunsxfti(-0.5, 0)) 74 return 1; 75 if (test__fixunsxfti(-0.99, 0)) 76 return 1; 77 if (test__fixunsxfti(-1.0, 0)) 78 return 1; 79 if (test__fixunsxfti(-1.5, 0)) 80 return 1; 81 if (test__fixunsxfti(-1.99, 0)) 82 return 1; 83 if (test__fixunsxfti(-2.0, 0)) 84 return 1; 85 if (test__fixunsxfti(-2.01, 0)) 86 return 1; 87 88 if (test__fixunsxfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL)) 89 return 1; 90 if (test__fixunsxfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL)) 91 return 1; 92 93 if (test__fixunsxfti(-0x1.FFFFFEp+62, 0)) 94 return 1; 95 if (test__fixunsxfti(-0x1.FFFFFCp+62, 0)) 96 return 1; 97 98 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL)) 99 return 1; 100 if (test__fixunsxfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL)) 101 return 1; 102 103 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFp+62, 0)) 104 return 1; 105 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFEp+62, 0)) 106 return 1; 107 108 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL)) 109 return 1; 110 if (test__fixunsxfti(0x1.0000000000000002p+63L, 0x8000000000000001LL)) 111 return 1; 112 if (test__fixunsxfti(0x1.0000000000000000p+63L, 0x8000000000000000LL)) 113 return 1; 114 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL)) 115 return 1; 116 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL)) 117 return 1; 118 119 if (test__fixunsxfti(-0x1.0000000000000000p+63L, 0)) 120 return 1; 121 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFFCp+62L, 0)) 122 return 1; 123 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFF8p+62L, 0)) 124 return 1; 125 126 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+127L, make_ti(0xFFFFFFFFFFFFFFFFLL, 0))) 127 return 1; 128 if (test__fixunsxfti(0x1.0000000000000002p+127L, make_ti(0x8000000000000001LL, 0))) 129 return 1; 130 if (test__fixunsxfti(0x1.0000000000000000p+127L, make_ti(0x8000000000000000LL, 0))) 131 return 1; 132 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL, 0))) 133 return 1; 134 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+126L, make_ti(0x7FFFFFFFFFFFFFFELL, 0))) 135 return 1; 136 137 #else 138 printf("skipped\n"); 139 #endif 140 return 0; 141 } 142
