1// RUN: %clang_builtins %s %librt -o %t && %run %t 2// REQUIRES: x86-target-arch 3 4//===-- fixunsxfti_test.c - Test __fixunsxfti -----------------------------===// 5// 6// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 7// See https://llvm.org/LICENSE.txt for license information. 8// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 9// 10//===----------------------------------------------------------------------===// 11// 12// This file tests __fixunsxfti for the compiler_rt library. 13// 14//===----------------------------------------------------------------------===// 15 16#include "int_lib.h" 17#include <stdio.h> 18 19#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE 20 21// Returns: convert a to a unsigned long long, rounding toward zero. 22// Negative values all become zero. 23 24// Assumption: long double is an intel 80 bit floating point type padded with 6 bytes 25// tu_int is a 64 bit integral type 26// value in long double is representable in tu_int or is negative 27// (no range checking performed) 28 29// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | 30// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 31 32COMPILER_RT_ABI tu_int __fixunsxfti(long double a); 33 34int test__fixunsxfti(long double a, tu_int expected) 35{ 36 tu_int x = __fixunsxfti(a); 37 if (x != expected) 38 { 39 utwords xt; 40 xt.all = x; 41 utwords expectedt; 42 expectedt.all = expected; 43 printf("error in __fixunsxfti(%LA) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n", 44 a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low); 45 } 46 return x != expected; 47} 48 49char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0}; 50char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0}; 51char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; 52 53#endif 54 55int main() 56{ 57#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE 58 if (test__fixunsxfti(0.0, 0)) 59 return 1; 60 61 if (test__fixunsxfti(0.5, 0)) 62 return 1; 63 if (test__fixunsxfti(0.99, 0)) 64 return 1; 65 if (test__fixunsxfti(1.0, 1)) 66 return 1; 67 if (test__fixunsxfti(1.5, 1)) 68 return 1; 69 if (test__fixunsxfti(1.99, 1)) 70 return 1; 71 if (test__fixunsxfti(2.0, 2)) 72 return 1; 73 if (test__fixunsxfti(2.01, 2)) 74 return 1; 75 if (test__fixunsxfti(-0.5, 0)) 76 return 1; 77 if (test__fixunsxfti(-0.99, 0)) 78 return 1; 79 if (test__fixunsxfti(-1.0, 0)) 80 return 1; 81 if (test__fixunsxfti(-1.5, 0)) 82 return 1; 83 if (test__fixunsxfti(-1.99, 0)) 84 return 1; 85 if (test__fixunsxfti(-2.0, 0)) 86 return 1; 87 if (test__fixunsxfti(-2.01, 0)) 88 return 1; 89 90 if (test__fixunsxfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL)) 91 return 1; 92 if (test__fixunsxfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL)) 93 return 1; 94 95 if (test__fixunsxfti(-0x1.FFFFFEp+62, 0)) 96 return 1; 97 if (test__fixunsxfti(-0x1.FFFFFCp+62, 0)) 98 return 1; 99 100 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL)) 101 return 1; 102 if (test__fixunsxfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL)) 103 return 1; 104 105 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFp+62, 0)) 106 return 1; 107 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFEp+62, 0)) 108 return 1; 109 110 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL)) 111 return 1; 112 if (test__fixunsxfti(0x1.0000000000000002p+63L, 0x8000000000000001LL)) 113 return 1; 114 if (test__fixunsxfti(0x1.0000000000000000p+63L, 0x8000000000000000LL)) 115 return 1; 116 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL)) 117 return 1; 118 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL)) 119 return 1; 120 121 if (test__fixunsxfti(-0x1.0000000000000000p+63L, 0)) 122 return 1; 123 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFFCp+62L, 0)) 124 return 1; 125 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFF8p+62L, 0)) 126 return 1; 127 128 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+127L, make_ti(0xFFFFFFFFFFFFFFFFLL, 0))) 129 return 1; 130 if (test__fixunsxfti(0x1.0000000000000002p+127L, make_ti(0x8000000000000001LL, 0))) 131 return 1; 132 if (test__fixunsxfti(0x1.0000000000000000p+127L, make_ti(0x8000000000000000LL, 0))) 133 return 1; 134 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL, 0))) 135 return 1; 136 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+126L, make_ti(0x7FFFFFFFFFFFFFFELL, 0))) 137 return 1; 138 139#else 140 printf("skipped\n"); 141#endif 142 return 0; 143} 144