1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 //===-- fixunstfdi_test.c - Test __fixunstfdi -----------------------------===//
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 __fixunstfdi for the compiler_rt library.
13 //===----------------------------------------------------------------------===//
17 #if _ARCH_PPC || __aarch64__
21 // Returns: convert a to a unsigned long long, rounding toward zero.
22 // Negative values all become zero.
24 // Assumption: long double is a 128 bit floating point type
25 // du_int is a 64 bit integral type
26 // value in long double is representable in du_int or is negative
27 // (no range checking performed)
29 COMPILER_RT_ABI du_int __fixunstfdi(long double a);
31 int test__fixunstfdi(long double a, du_int expected)
33 du_int x = __fixunstfdi(a);
35 printf("error in __fixunstfdi(%LA) = %llX, expected %llX\n",
40 char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
41 char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
42 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
48 #if _ARCH_PPC || __aarch64__
49 if (test__fixunstfdi(0.0, 0))
52 if (test__fixunstfdi(0.5, 0))
54 if (test__fixunstfdi(0.99, 0))
56 if (test__fixunstfdi(1.0, 1))
58 if (test__fixunstfdi(1.5, 1))
60 if (test__fixunstfdi(1.99, 1))
62 if (test__fixunstfdi(2.0, 2))
64 if (test__fixunstfdi(2.01, 2))
66 if (test__fixunstfdi(-0.5, 0))
68 if (test__fixunstfdi(-0.99, 0))
70 if (test__fixunstfdi(-1.0, 0))
72 if (test__fixunstfdi(-1.5, 0))
74 if (test__fixunstfdi(-1.99, 0))
76 if (test__fixunstfdi(-2.0, 0))
78 if (test__fixunstfdi(-2.01, 0))
81 if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
83 if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
86 if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
88 if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
91 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
93 if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
96 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
98 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
101 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
103 if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
105 if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
107 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
109 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
111 if (test__fixunstfdi(0x1.p+64L, 0xFFFFFFFFFFFFFFFFLL))
114 if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
116 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
118 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))