1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 //===-- floatuntisf.c - Test __floatuntisf --------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 // This file tests __floatuntisf for the compiler_rt library.
13 //===----------------------------------------------------------------------===//
19 #if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE
21 // Returns: convert a to a float, rounding toward even.
23 // Assumption: float is a IEEE 32 bit floating point type
24 // tu_int is a 128 bit integral type
26 // seee eeee emmm mmmm mmmm mmmm mmmm mmmm
28 COMPILER_RT_ABI float __floatuntisf(tu_int a);
30 int test__floatuntisf(tu_int a, float expected)
32 float x = __floatuntisf(a);
37 printf("error in __floatuntisf(0x%.16llX%.16llX) = %a, expected %a\n",
38 at.s.high, at.s.low, x, expected);
43 COMPILE_TIME_ASSERT(sizeof(tu_int) == 2*sizeof(du_int));
44 COMPILE_TIME_ASSERT(sizeof(tu_int)*CHAR_BIT == 128);
45 COMPILE_TIME_ASSERT(sizeof(float)*CHAR_BIT == 32);
51 #if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE
52 if (test__floatuntisf(0, 0.0F))
55 if (test__floatuntisf(1, 1.0F))
57 if (test__floatuntisf(2, 2.0F))
59 if (test__floatuntisf(20, 20.0F))
62 if (test__floatuntisf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62F))
64 if (test__floatuntisf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62F))
67 if (test__floatuntisf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127F))
69 if (test__floatuntisf(make_ti(0x8000000000000800LL, 0), 0x1.0p+127F))
71 if (test__floatuntisf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127F))
74 if (test__floatuntisf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127F))
77 if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
80 if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50F))
82 if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50F))
85 if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50F))
88 if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50F))
90 if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50F))
92 if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50F))
95 if (test__floatuntisf(0xFFFFFFFFFFFFFFFELL, 0x1p+64F))
97 if (test__floatuntisf(0xFFFFFFFFFFFFFFFFLL, 0x1p+64F))
100 if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
103 if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBAp+50F))
105 if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBAp+50F))
107 if (test__floatuntisf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAp+50F))
109 if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBCp+50F))
111 if (test__floatuntisf(0x0007FB72E8000001LL, 0x1.FEDCBAp+50F))
114 if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCBAp+50F))
116 if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCBAp+50F))
118 if (test__floatuntisf(0x0007FB72E7FFFFFFLL, 0x1.FEDCBAp+50F))
120 if (test__floatuntisf(0x0007FB72E4000001LL, 0x1.FEDCBAp+50F))
122 if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB8p+50F))
125 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCB90000000000001LL),
128 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBA0000000000000LL),
131 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBAFFFFFFFFFFFFFLL),
134 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000000LL),
137 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000001LL),
140 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBBFFFFFFFFFFFFFLL),
143 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000000LL),
146 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000001LL),
149 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000000LL),
152 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000001LL),
155 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBDFFFFFFFFFFFFFLL),
158 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBE0000000000000LL),