1 // RUN: %clang_builtins %s %librt -o %t && %run %t
3 //===-- floattidf.c - Test __floattidf ------------------------------------===//
5 // The LLVM Compiler Infrastructure
7 // This file is dual licensed under the MIT and the University of Illinois Open
8 // Source Licenses. See LICENSE.TXT for details.
10 //===----------------------------------------------------------------------===//
12 // This file tests __floattidf for the compiler_rt library.
14 //===----------------------------------------------------------------------===//
22 // Returns: convert a to a double, rounding toward even.
24 // Assumption: double is a IEEE 64 bit floating point type
25 // ti_int is a 64 bit integral type
27 // seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
29 COMPILER_RT_ABI double __floattidf(ti_int a);
31 int test__floattidf(ti_int a, double expected)
33 double x = __floattidf(a);
38 printf("error in __floattidf(0x%.16llX%.16llX) = %a, expected %a\n",
39 at.s.high, at.s.low, x, expected);
44 char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
45 char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};
46 char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0};
53 if (test__floattidf(0, 0.0))
56 if (test__floattidf(1, 1.0))
58 if (test__floattidf(2, 2.0))
60 if (test__floattidf(20, 20.0))
62 if (test__floattidf(-1, -1.0))
64 if (test__floattidf(-2, -2.0))
66 if (test__floattidf(-20, -20.0))
69 if (test__floattidf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
71 if (test__floattidf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
73 if (test__floattidf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
75 if (test__floattidf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
78 if (test__floattidf(make_ti(0x8000008000000000LL, 0), -0x1.FFFFFEp+126))
80 if (test__floattidf(make_ti(0x8000000000000800LL, 0), -0x1.FFFFFFFFFFFFEp+126))
82 if (test__floattidf(make_ti(0x8000010000000000LL, 0), -0x1.FFFFFCp+126))
84 if (test__floattidf(make_ti(0x8000000000001000LL, 0), -0x1.FFFFFFFFFFFFCp+126))
87 if (test__floattidf(make_ti(0x8000000000000000LL, 0), -0x1.000000p+127))
89 if (test__floattidf(make_ti(0x8000000000000001LL, 0), -0x1.000000p+127))
92 if (test__floattidf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
95 if (test__floattidf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
97 if (test__floattidf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
99 if (test__floattidf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
101 if (test__floattidf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
103 if (test__floattidf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
106 if (test__floattidf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
108 if (test__floattidf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
110 if (test__floattidf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
112 if (test__floattidf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
114 if (test__floattidf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
117 if (test__floattidf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
119 if (test__floattidf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496Dp+57))
121 if (test__floattidf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496Ep+57))
123 if (test__floattidf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496Ep+57))
125 if (test__floattidf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496Ep+57))
127 if (test__floattidf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496Ep+57))
129 if (test__floattidf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496Ep+57))
131 if (test__floattidf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496Ep+57))
133 if (test__floattidf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496Ep+57))
135 if (test__floattidf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496Ep+57))
137 if (test__floattidf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496Ep+57))
139 if (test__floattidf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496Fp+57))
141 if (test__floattidf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496Fp+57))
143 if (test__floattidf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496Fp+57))
145 if (test__floattidf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
148 if (test__floattidf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121))
150 if (test__floattidf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496Dp+121))
152 if (test__floattidf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496Ep+121))
154 if (test__floattidf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496Ep+121))
156 if (test__floattidf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496Ep+121))
158 if (test__floattidf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496Ep+121))
160 if (test__floattidf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496Ep+121))
162 if (test__floattidf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496Ep+121))
164 if (test__floattidf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496Ep+121))
166 if (test__floattidf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496Ep+121))
168 if (test__floattidf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496Ep+121))
170 if (test__floattidf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496Fp+121))
172 if (test__floattidf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496Fp+121))
174 if (test__floattidf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496Fp+121))
176 if (test__floattidf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121))