1// RUN: %clang_builtins %s %librt -o %t && %run %t 2// REQUIRES: x86-target-arch 3 4//===-- floattixf.c - Test __floattixf ------------------------------------===// 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 __floattixf for the compiler_rt library. 13// 14//===----------------------------------------------------------------------===// 15 16#include "int_lib.h" 17#include <float.h> 18#include <stdio.h> 19 20#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE 21 22// Returns: convert a to a long double, rounding toward even. 23 24// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits 25// ti_int is a 128 bit integral type 26 27// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | 28// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 29 30COMPILER_RT_ABI long double __floattixf(ti_int a); 31 32int test__floattixf(ti_int a, long double expected) 33{ 34 long double x = __floattixf(a); 35 if (x != expected) 36 { 37 twords at; 38 at.all = a; 39 printf("error in __floattixf(0x%.16llX%.16llX) = %LA, expected %LA\n", 40 at.s.high, at.s.low, x, expected); 41 } 42 return x != expected; 43} 44 45COMPILE_TIME_ASSERT(sizeof(ti_int) == 2*sizeof(di_int)); 46COMPILE_TIME_ASSERT(sizeof(ti_int)*CHAR_BIT == 128); 47COMPILE_TIME_ASSERT(sizeof(long double)*CHAR_BIT == 128); 48 49#endif 50 51int main() 52{ 53#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE 54 if (test__floattixf(0, 0.0)) 55 return 1; 56 57 if (test__floattixf(1, 1.0)) 58 return 1; 59 if (test__floattixf(2, 2.0)) 60 return 1; 61 if (test__floattixf(20, 20.0)) 62 return 1; 63 if (test__floattixf(-1, -1.0)) 64 return 1; 65 if (test__floattixf(-2, -2.0)) 66 return 1; 67 if (test__floattixf(-20, -20.0)) 68 return 1; 69 70 if (test__floattixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62)) 71 return 1; 72 if (test__floattixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62)) 73 return 1; 74 if (test__floattixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62)) 75 return 1; 76 if (test__floattixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62)) 77 return 1; 78 79 if (test__floattixf(make_ti(0x8000008000000000LL, 0), -0x1.FFFFFEp+126)) 80 return 1; 81 if (test__floattixf(make_ti(0x8000000000000800LL, 0), -0x1.FFFFFFFFFFFFEp+126)) 82 return 1; 83 if (test__floattixf(make_ti(0x8000010000000000LL, 0), -0x1.FFFFFCp+126)) 84 return 1; 85 if (test__floattixf(make_ti(0x8000000000001000LL, 0), -0x1.FFFFFFFFFFFFCp+126)) 86 return 1; 87 88 if (test__floattixf(make_ti(0x8000000000000000LL, 0), -0x1.000000p+127)) 89 return 1; 90 if (test__floattixf(make_ti(0x8000000000000001LL, 0), -0x1.FFFFFFFFFFFFFFFCp+126L)) 91 return 1; 92 93 if (test__floattixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) 94 return 1; 95 96 if (test__floattixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) 97 return 1; 98 if (test__floattixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) 99 return 1; 100 if (test__floattixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) 101 return 1; 102 if (test__floattixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) 103 return 1; 104 if (test__floattixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) 105 return 1; 106 107 if (test__floattixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) 108 return 1; 109 if (test__floattixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) 110 return 1; 111 if (test__floattixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) 112 return 1; 113 if (test__floattixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) 114 return 1; 115 if (test__floattixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) 116 return 1; 117 118 if (test__floattixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) 119 return 1; 120 if (test__floattixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L)) 121 return 1; 122 if (test__floattixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L)) 123 return 1; 124 if (test__floattixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L)) 125 return 1; 126 if (test__floattixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L)) 127 return 1; 128 if (test__floattixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L)) 129 return 1; 130 if (test__floattixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L)) 131 return 1; 132 if (test__floattixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L)) 133 return 1; 134 if (test__floattixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L)) 135 return 1; 136 if (test__floattixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L)) 137 return 1; 138 if (test__floattixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L)) 139 return 1; 140 if (test__floattixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L)) 141 return 1; 142 if (test__floattixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L)) 143 return 1; 144 if (test__floattixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L)) 145 return 1; 146 if (test__floattixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) 147 return 1; 148 149 if (test__floattixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L)) 150 return 1; 151 if (test__floattixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L)) 152 return 1; 153 if (test__floattixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L)) 154 return 1; 155 if (test__floattixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L)) 156 return 1; 157 if (test__floattixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L)) 158 return 1; 159 if (test__floattixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L)) 160 return 1; 161 if (test__floattixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L)) 162 return 1; 163 if (test__floattixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L)) 164 return 1; 165 if (test__floattixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L)) 166 return 1; 167 if (test__floattixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L)) 168 return 1; 169 if (test__floattixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L)) 170 return 1; 171 if (test__floattixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L)) 172 return 1; 173 if (test__floattixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L)) 174 return 1; 175 if (test__floattixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L)) 176 return 1; 177 if (test__floattixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L)) 178 return 1; 179 180 if (test__floattixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L)) 181 return 1; 182 183 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL), 184 0x1.2345678901234562p+108L)) 185 return 1; 186 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL), 187 0x1.2345678901234562p+108L)) 188 return 1; 189 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL), 190 0x1.2345678901234562p+108L)) 191 return 1; 192 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL), 193 0x1.2345678901234564p+108L)) 194 return 1; 195 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL), 196 0x1.2345678901234564p+108L)) 197 return 1; 198 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL), 199 0x1.2345678901234564p+108L)) 200 return 1; 201 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL), 202 0x1.2345678901234564p+108L)) 203 return 1; 204 if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL), 205 0x1.2345678901234566p+108L)) 206 return 1; 207 if (test__floattixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL), 208 0x1.2345678901234566p+108L)) 209 return 1; 210#else 211 printf("skipped\n"); 212#endif 213 return 0; 214} 215