1 //===-- fixunssfdi_test.c - Test __fixunssfdi -----------------------------===// 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 __fixunssfdi for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 // Returns: convert a to a unsigned long long, rounding toward zero. 18 // Negative values all become zero. 19 20 // Assumption: float is a IEEE 32 bit floating point type 21 // du_int is a 64 bit integral type 22 // value in float is representable in du_int or is negative 23 // (no range checking performed) 24 25 // seee eeee emmm mmmm mmmm mmmm mmmm mmmm 26 27 du_int __fixunssfdi(float a); 28 29 int test__fixunssfdi(float a, du_int expected) 30 { 31 du_int x = __fixunssfdi(a); 32 if (x != expected) 33 printf("error in __fixunssfdi(%A) = %llX, expected %llX\n", 34 a, x, expected); 35 return x != expected; 36 } 37 38 char assumption_1[sizeof(du_int) == 2*sizeof(si_int)] = {0}; 39 char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; 40 char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0}; 41 42 int main() 43 { 44 if (test__fixunssfdi(0.0F, 0)) 45 return 1; 46 47 if (test__fixunssfdi(0.5F, 0)) 48 return 1; 49 if (test__fixunssfdi(0.99F, 0)) 50 return 1; 51 if (test__fixunssfdi(1.0F, 1)) 52 return 1; 53 if (test__fixunssfdi(1.5F, 1)) 54 return 1; 55 if (test__fixunssfdi(1.99F, 1)) 56 return 1; 57 if (test__fixunssfdi(2.0F, 2)) 58 return 1; 59 if (test__fixunssfdi(2.01F, 2)) 60 return 1; 61 if (test__fixunssfdi(-0.5F, 0)) 62 return 1; 63 if (test__fixunssfdi(-0.99F, 0)) 64 return 1; 65 #if !TARGET_LIBGCC 66 if (test__fixunssfdi(-1.0F, 0)) // libgcc ignores "returns 0 for negative input" spec 67 return 1; 68 if (test__fixunssfdi(-1.5F, 0)) 69 return 1; 70 if (test__fixunssfdi(-1.99F, 0)) 71 return 1; 72 if (test__fixunssfdi(-2.0F, 0)) 73 return 1; 74 if (test__fixunssfdi(-2.01F, 0)) 75 return 1; 76 #endif 77 78 if (test__fixunssfdi(0x1.FFFFFEp+63F, 0xFFFFFF0000000000LL)) 79 return 1; 80 if (test__fixunssfdi(0x1.000000p+63F, 0x8000000000000000LL)) 81 return 1; 82 if (test__fixunssfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL)) 83 return 1; 84 if (test__fixunssfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL)) 85 return 1; 86 87 #if !TARGET_LIBGCC 88 if (test__fixunssfdi(-0x1.FFFFFEp+62F, 0x0000000000000000LL)) 89 return 1; 90 if (test__fixunssfdi(-0x1.FFFFFCp+62F, 0x0000000000000000LL)) 91 return 1; 92 #endif 93 94 return 0; 95 } 96
