1 //===-- Unittests for coshf -----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "hdr/math_macros.h"
10 #include "src/__support/CPP/array.h"
11 #include "src/__support/FPUtil/FPBits.h"
12 #include "src/errno/libc_errno.h"
13 #include "src/math/coshf.h"
14 #include "test/UnitTest/FPMatcher.h"
15 #include "test/UnitTest/Test.h"
16
17 #include <stdint.h>
18
19 using LlvmLibcCoshfTest = LIBC_NAMESPACE::testing::FPTest<float>;
20
TEST_F(LlvmLibcCoshfTest,SpecialNumbers)21 TEST_F(LlvmLibcCoshfTest, SpecialNumbers) {
22 LIBC_NAMESPACE::libc_errno = 0;
23
24 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::coshf(aNaN));
25 EXPECT_MATH_ERRNO(0);
26
27 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::coshf(inf));
28 EXPECT_MATH_ERRNO(0);
29
30 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::coshf(neg_inf));
31 EXPECT_MATH_ERRNO(0);
32
33 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::coshf(0.0f));
34 EXPECT_MATH_ERRNO(0);
35
36 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::coshf(-0.0f));
37 EXPECT_MATH_ERRNO(0);
38 }
39
TEST_F(LlvmLibcCoshfTest,Overflow)40 TEST_F(LlvmLibcCoshfTest, Overflow) {
41 LIBC_NAMESPACE::libc_errno = 0;
42 EXPECT_FP_EQ_WITH_EXCEPTION(
43 inf, LIBC_NAMESPACE::coshf(FPBits(0x7f7fffffU).get_val()), FE_OVERFLOW);
44 EXPECT_MATH_ERRNO(ERANGE);
45
46 EXPECT_FP_EQ_WITH_EXCEPTION(
47 inf, LIBC_NAMESPACE::coshf(FPBits(0x42cffff8U).get_val()), FE_OVERFLOW);
48 EXPECT_MATH_ERRNO(ERANGE);
49
50 EXPECT_FP_EQ_WITH_EXCEPTION(
51 inf, LIBC_NAMESPACE::coshf(FPBits(0x42d00008U).get_val()), FE_OVERFLOW);
52 EXPECT_MATH_ERRNO(ERANGE);
53 }
54
55 #ifdef LIBC_TEST_FTZ_DAZ
56
57 using namespace LIBC_NAMESPACE::testing;
58
TEST_F(LlvmLibcCoshfTest,FTZMode)59 TEST_F(LlvmLibcCoshfTest, FTZMode) {
60 ModifyMXCSR mxcsr(FTZ);
61
62 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(min_denormal));
63 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(max_denormal));
64 }
65
TEST_F(LlvmLibcCoshfTest,DAZMode)66 TEST_F(LlvmLibcCoshfTest, DAZMode) {
67 ModifyMXCSR mxcsr(DAZ);
68
69 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(min_denormal));
70 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(max_denormal));
71 }
72
TEST_F(LlvmLibcCoshfTest,FTZDAZMode)73 TEST_F(LlvmLibcCoshfTest, FTZDAZMode) {
74 ModifyMXCSR mxcsr(FTZ | DAZ);
75
76 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(min_denormal));
77 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(max_denormal));
78 }
79
80 #endif
81