1 //===-- fixsfdi_test.c - Test __fixsfdi -----------------------------------===// 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 __fixsfdi for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 // Returns: convert a to a signed long long, rounding toward zero. 18 19 // Assumption: float is a IEEE 32 bit floating point type 20 // su_int is a 32 bit integral type 21 // value in float is representable in di_int (no range checking performed) 22 23 // seee eeee emmm mmmm mmmm mmmm mmmm mmmm 24 25 di_int __fixsfdi(float a); 26 27 int test__fixsfdi(float a, di_int expected) 28 { 29 di_int x = __fixsfdi(a); 30 if (x != expected) 31 printf("error in __fixsfdi(%A) = %llX, expected %llX\n", a, x, expected); 32 return x != expected; 33 } 34 35 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0}; 36 char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; 37 char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0}; 38 39 int main() 40 { 41 if (test__fixsfdi(0.0F, 0)) 42 return 1; 43 44 if (test__fixsfdi(0.5F, 0)) 45 return 1; 46 if (test__fixsfdi(0.99F, 0)) 47 return 1; 48 if (test__fixsfdi(1.0F, 1)) 49 return 1; 50 if (test__fixsfdi(1.5F, 1)) 51 return 1; 52 if (test__fixsfdi(1.99F, 1)) 53 return 1; 54 if (test__fixsfdi(2.0F, 2)) 55 return 1; 56 if (test__fixsfdi(2.01F, 2)) 57 return 1; 58 if (test__fixsfdi(-0.5F, 0)) 59 return 1; 60 if (test__fixsfdi(-0.99F, 0)) 61 return 1; 62 if (test__fixsfdi(-1.0F, -1)) 63 return 1; 64 if (test__fixsfdi(-1.5F, -1)) 65 return 1; 66 if (test__fixsfdi(-1.99F, -1)) 67 return 1; 68 if (test__fixsfdi(-2.0F, -2)) 69 return 1; 70 if (test__fixsfdi(-2.01F, -2)) 71 return 1; 72 73 if (test__fixsfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL)) 74 return 1; 75 if (test__fixsfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL)) 76 return 1; 77 78 if (test__fixsfdi(-0x1.FFFFFEp+62F, 0x8000008000000000LL)) 79 return 1; 80 if (test__fixsfdi(-0x1.FFFFFCp+62F, 0x8000010000000000LL)) 81 return 1; 82 83 return 0; 84 } 85
