1 //===-- Unittests for cospif ----------------------------------------------===//
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 "src/errno/libc_errno.h"
10 #include "src/math/cospif.h"
11 #include "test/UnitTest/FPMatcher.h"
12
13 #include <stdint.h>
14
15 using LlvmLibcCospifTest = LIBC_NAMESPACE::testing::FPTest<float>;
16
TEST_F(LlvmLibcCospifTest,SpecialNumbers)17 TEST_F(LlvmLibcCospifTest, SpecialNumbers) {
18 LIBC_NAMESPACE::libc_errno = 0;
19
20 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::cospif(aNaN));
21 EXPECT_MATH_ERRNO(0);
22
23 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(0.0f));
24 EXPECT_MATH_ERRNO(0);
25
26 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(-0.0f));
27 EXPECT_MATH_ERRNO(0);
28
29 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::cospif(inf));
30 EXPECT_MATH_ERRNO(EDOM);
31
32 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::cospif(neg_inf));
33 EXPECT_MATH_ERRNO(EDOM);
34 }
35
36 #ifdef LIBC_TEST_FTZ_DAZ
37
38 using namespace LIBC_NAMESPACE::testing;
39
TEST_F(LlvmLibcCospifTest,FTZMode)40 TEST_F(LlvmLibcCospifTest, FTZMode) {
41 ModifyMXCSR mxcsr(FTZ);
42
43 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(min_denormal));
44 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(max_denormal));
45 }
46
TEST_F(LlvmLibcCospifTest,DAZMode)47 TEST_F(LlvmLibcCospifTest, DAZMode) {
48 ModifyMXCSR mxcsr(DAZ);
49
50 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(min_denormal));
51 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(max_denormal));
52 }
53
TEST_F(LlvmLibcCospifTest,FTZDAZMode)54 TEST_F(LlvmLibcCospifTest, FTZDAZMode) {
55 ModifyMXCSR mxcsr(FTZ | DAZ);
56
57 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(min_denormal));
58 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::cospif(max_denormal));
59 }
60
61 #endif
62