1// RUN: %clang_builtins %s %librt -o %t && %run %t 2//===-- fixunssfdi_test.c - Test __fixunssfdi -----------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 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 27COMPILER_RT_ABI du_int __fixunssfdi(float a); 28 29int 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 38char assumption_1[sizeof(du_int) == 2*sizeof(si_int)] = {0}; 39char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; 40char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0}; 41 42int 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