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gerrit-public.fairphone.software / platform / external / compiler-rt / dec793732650d7d4d5f66511ec59f04a451315fa / . / test / builtins / Unit / fixunstfdi_test.c
blob: 60ea503d2778985f97a892013e4e7f0e7076bdbc [file] [log] [blame]
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]1//===-- fixunstfdi_test.c - Test __fixunstfdi -----------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
Howard Hinnant9ad441f2010-11-16 22:13:33 +0000[diff] [blame]5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]7//
8//===----------------------------------------------------------------------===//
9//
10// This file tests __fixunstfdi for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
Pirama Arumuga Nainar7c915052015-04-08 08:58:29 -0700[diff] [blame]14#include <stdio.h>
15
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]16#if _ARCH_PPC
17
18#include "int_lib.h"
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]19
20// Returns: convert a to a unsigned long long, rounding toward zero.
21// Negative values all become zero.
22
23// Assumption: long double is a ppc 128 bit floating point type
24// du_int is a 64 bit integral type
25// value in long double is representable in du_int or is negative
26// (no range checking performed)
27
Pirama Arumuga Nainarcdce50b2015-07-01 12:26:56 -0700[diff] [blame]28COMPILER_RT_ABI du_int __fixunstfdi(long double a);
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]29
30int test__fixunstfdi(long double a, du_int expected)
31{
32 du_int x = __fixunstfdi(a);
33 if (x != expected)
34 printf("error in __fixunstfdi(%LA) = %llX, expected %llX\n",
35 a, x, expected);
36 return x != expected;
37}
38
39char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
40char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
41char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
42
43#endif
44
45int main()
46{
47#if _ARCH_PPC
48 if (test__fixunstfdi(0.0, 0))
49 return 1;
50
51 if (test__fixunstfdi(0.5, 0))
52 return 1;
53 if (test__fixunstfdi(0.99, 0))
54 return 1;
55 if (test__fixunstfdi(1.0, 1))
56 return 1;
57 if (test__fixunstfdi(1.5, 1))
58 return 1;
59 if (test__fixunstfdi(1.99, 1))
60 return 1;
61 if (test__fixunstfdi(2.0, 2))
62 return 1;
63 if (test__fixunstfdi(2.01, 2))
64 return 1;
65 if (test__fixunstfdi(-0.5, 0))
66 return 1;
67 if (test__fixunstfdi(-0.99, 0))
68 return 1;
69 if (test__fixunstfdi(-1.0, 0))
70 return 1;
71 if (test__fixunstfdi(-1.5, 0))
72 return 1;
73 if (test__fixunstfdi(-1.99, 0))
74 return 1;
75 if (test__fixunstfdi(-2.0, 0))
76 return 1;
77 if (test__fixunstfdi(-2.01, 0))
78 return 1;
79
80 if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
81 return 1;
82 if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
83 return 1;
84
85 if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
86 return 1;
87 if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
88 return 1;
89
90 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
91 return 1;
92 if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
93 return 1;
94
95 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
96 return 1;
97 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
98 return 1;
99
100 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
101 return 1;
102 if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
103 return 1;
104 if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
105 return 1;
106 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
107 return 1;
108 if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
109 return 1;
110
111 if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
112 return 1;
113 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
114 return 1;
115 if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
116 return 1;
117
Joerg Sonnenberger74828152011-05-29 21:43:29 +0000[diff] [blame]118#else
119 printf("skipped\n");
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]120#endif
121 return 0;
122}