1// RUN: %clang_builtins %s %librt -o %t && %run %t 2//===-- fixunssfsi_test.c - Test __fixunssfsi -----------------------------===// 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 __fixunssfsi 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 int, rounding toward zero. 18// Negative values all become zero. 19 20// Assumption: float is a IEEE 32 bit floating point type 21// su_int is a 32 bit integral type 22// value in float is representable in su_int or is negative 23// (no range checking performed) 24 25// seee eeee emmm mmmm mmmm mmmm mmmm mmmm 26 27COMPILER_RT_ABI su_int __fixunssfsi(float a); 28 29int test__fixunssfsi(float a, su_int expected) 30{ 31 su_int x = __fixunssfsi(a); 32 if (x != expected) 33 printf("error in __fixunssfsi(%A) = %X, expected %X\n", a, x, expected); 34 return x != expected; 35} 36 37char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; 38char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0}; 39 40int main() 41{ 42 if (test__fixunssfsi(0.0F, 0)) 43 return 1; 44 45 if (test__fixunssfsi(0.5F, 0)) 46 return 1; 47 if (test__fixunssfsi(0.99F, 0)) 48 return 1; 49 if (test__fixunssfsi(1.0F, 1)) 50 return 1; 51 if (test__fixunssfsi(1.5F, 1)) 52 return 1; 53 if (test__fixunssfsi(1.99F, 1)) 54 return 1; 55 if (test__fixunssfsi(2.0F, 2)) 56 return 1; 57 if (test__fixunssfsi(2.01F, 2)) 58 return 1; 59 if (test__fixunssfsi(-0.5F, 0)) 60 return 1; 61 if (test__fixunssfsi(-0.99F, 0)) 62 return 1; 63#if !TARGET_LIBGCC 64 if (test__fixunssfsi(-1.0F, 0)) // libgcc ignores "returns 0 for negative input" spec 65 return 1; 66 if (test__fixunssfsi(-1.5F, 0)) 67 return 1; 68 if (test__fixunssfsi(-1.99F, 0)) 69 return 1; 70 if (test__fixunssfsi(-2.0F, 0)) 71 return 1; 72 if (test__fixunssfsi(-2.01F, 0)) 73 return 1; 74#endif 75 76 if (test__fixunssfsi(0x1.000000p+31F, 0x80000000)) 77 return 1; 78 if (test__fixunssfsi(0x1.000000p+32F, 0xFFFFFFFF)) 79 return 1; 80 if (test__fixunssfsi(0x1.FFFFFEp+31F, 0xFFFFFF00)) 81 return 1; 82 if (test__fixunssfsi(0x1.FFFFFEp+30F, 0x7FFFFF80)) 83 return 1; 84 if (test__fixunssfsi(0x1.FFFFFCp+30F, 0x7FFFFF00)) 85 return 1; 86 87#if !TARGET_LIBGCC 88 if (test__fixunssfsi(-0x1.FFFFFEp+30F, 0)) 89 return 1; 90 if (test__fixunssfsi(-0x1.FFFFFCp+30F, 0)) 91 return 1; 92#endif 93 94 return 0; 95} 96