1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
//===-- Unittests for atan2f ----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "hdr/math_macros.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/math/atan2f.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"
using LlvmLibcAtan2fTest = LIBC_NAMESPACE::testing::FPTest<float>;
TEST_F(LlvmLibcAtan2fTest, SpecialNumbers) {
EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::atan2f(sNaN, sNaN),
FE_INVALID);
EXPECT_MATH_ERRNO(0);
EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::atan2f(sNaN, 1.0f),
FE_INVALID);
EXPECT_MATH_ERRNO(0);
EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::atan2f(1.0f, sNaN),
FE_INVALID);
EXPECT_MATH_ERRNO(0);
// TODO: Strengthen errno,exception checks and remove these assert macros
// after new matchers/test fixtures are added see:
// https://github.com/llvm/llvm-project/issues/90653.
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::atan2f(aNaN, zero));
// TODO: Uncomment these checks later, RoundingMode affects running
// tests in this way https://github.com/llvm/llvm-project/issues/90653.
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::atan2f(1.0f, aNaN));
// See above TODO
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::atan2f(zero, zero));
// See above TODO
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(-0.0f, LIBC_NAMESPACE::atan2f(-0.0f, zero));
// See above TODO
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::atan2f(1.0f, inf));
// See above TODO
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(-0.0f, LIBC_NAMESPACE::atan2f(-1.0f, inf));
// See above TODO
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
}
#ifdef LIBC_TEST_FTZ_DAZ
using namespace LIBC_NAMESPACE::testing;
TEST_F(LlvmLibcAtan2fTest, FTZMode) {
ModifyMXCSR mxcsr(FTZ);
EXPECT_FP_EQ(0x1.921fb6p-1f,
LIBC_NAMESPACE::atan2f(min_denormal, min_denormal));
EXPECT_FP_EQ(0x1.000002p-23f,
LIBC_NAMESPACE::atan2f(min_denormal, max_denormal));
EXPECT_FP_EQ(0x1.921fb4p0f,
LIBC_NAMESPACE::atan2f(max_denormal, min_denormal));
EXPECT_FP_EQ(0x1.921fb6p-1f,
LIBC_NAMESPACE::atan2f(max_denormal, max_denormal));
}
TEST_F(LlvmLibcAtan2fTest, DAZMode) {
ModifyMXCSR mxcsr(DAZ);
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(min_denormal, min_denormal));
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(min_denormal, max_denormal));
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(max_denormal, min_denormal));
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(max_denormal, max_denormal));
}
TEST_F(LlvmLibcAtan2fTest, FTZDAZMode) {
ModifyMXCSR mxcsr(FTZ | DAZ);
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(min_denormal, min_denormal));
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(min_denormal, max_denormal));
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(max_denormal, min_denormal));
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atan2f(max_denormal, max_denormal));
}
#endif
|
