1 //===-- fixunssfti_test.c - Test __fixunssfti -----------------------------===// 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 __fixunssfti 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: float is a IEEE 32 bit floating point type 23 // tu_int is a 64 bit integral type 24 // value in float is representable in tu_int or is negative 25 // (no range checking performed) 26 27 // seee eeee emmm mmmm mmmm mmmm mmmm mmmm 28 29 tu_int __fixunssfti(float a); 30 31 int test__fixunssfti(float a, tu_int expected) 32 { 33 tu_int x = __fixunssfti(a); 34 if (x != expected) 35 { 36 utwords xt; 37 xt.all = x; 38 utwords expectedt; 39 expectedt.all = expected; 40 printf("error in __fixunssfti(%A) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n", 41 a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low); 42 } 43 return x != expected; 44 } 45 46 char assumption_1[sizeof(tu_int) == 2*sizeof(di_int)] = {0}; 47 char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; 48 char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0}; 49 50 #endif 51 52 int main() 53 { 54 #if __x86_64 55 if (test__fixunssfti(0.0F, 0)) 56 return 1; 57 58 if (test__fixunssfti(0.5F, 0)) 59 return 1; 60 if (test__fixunssfti(0.99F, 0)) 61 return 1; 62 if (test__fixunssfti(1.0F, 1)) 63 return 1; 64 if (test__fixunssfti(1.5F, 1)) 65 return 1; 66 if (test__fixunssfti(1.99F, 1)) 67 return 1; 68 if (test__fixunssfti(2.0F, 2)) 69 return 1; 70 if (test__fixunssfti(2.01F, 2)) 71 return 1; 72 if (test__fixunssfti(-0.5F, 0)) 73 return 1; 74 if (test__fixunssfti(-0.99F, 0)) 75 return 1; 76 #if !TARGET_LIBGCC 77 if (test__fixunssfti(-1.0F, 0)) // libgcc ignores "returns 0 for negative input" spec 78 return 1; 79 if (test__fixunssfti(-1.5F, 0)) 80 return 1; 81 if (test__fixunssfti(-1.99F, 0)) 82 return 1; 83 if (test__fixunssfti(-2.0F, 0)) 84 return 1; 85 if (test__fixunssfti(-2.01F, 0)) 86 return 1; 87 #endif 88 89 if (test__fixunssfti(0x1.FFFFFEp+63F, 0xFFFFFF0000000000LL)) 90 return 1; 91 if (test__fixunssfti(0x1.000000p+63F, 0x8000000000000000LL)) 92 return 1; 93 if (test__fixunssfti(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL)) 94 return 1; 95 if (test__fixunssfti(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL)) 96 return 1; 97 98 if (test__fixunssfti(0x1.FFFFFEp+127F, make_ti(0xFFFFFF0000000000LL, 0))) 99 return 1; 100 if (test__fixunssfti(0x1.000000p+127F, make_ti(0x8000000000000000LL, 0))) 101 return 1; 102 if (test__fixunssfti(0x1.FFFFFEp+126F, make_ti(0x7FFFFF8000000000LL, 0))) 103 return 1; 104 if (test__fixunssfti(0x1.FFFFFCp+126F, make_ti(0x7FFFFF0000000000LL, 0))) 105 return 1; 106 107 #if !TARGET_LIBGCC 108 if (test__fixunssfti(-0x1.FFFFFEp+62F, 0x0000000000000000LL)) 109 return 1; 110 if (test__fixunssfti(-0x1.FFFFFCp+62F, 0x0000000000000000LL)) 111 return 1; 112 if (test__fixunssfti(-0x1.FFFFFEp+126F, 0x0000000000000000LL)) 113 return 1; 114 if (test__fixunssfti(-0x1.FFFFFCp+126F, 0x0000000000000000LL)) 115 return 1; 116 #endif 117 118 #endif 119 return 0; 120 } 121
