1 //===-- Unittests for cospif16 --------------------------------------------===//
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/__support/FPUtil/cast.h"
10 #include "src/errno/libc_errno.h"
11 #include "src/math/cospif16.h"
12 #include "test/UnitTest/FPMatcher.h"
13 #include "test/UnitTest/Test.h"
14
15 using LlvmLibcCospif16Test = LIBC_NAMESPACE::testing::FPTest<float16>;
16
TEST_F(LlvmLibcCospif16Test,SpecialNumbers)17 TEST_F(LlvmLibcCospif16Test, SpecialNumbers) {
18 LIBC_NAMESPACE::libc_errno = 0;
19
20 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::cospif16(aNaN));
21 EXPECT_MATH_ERRNO(0);
22
23 EXPECT_FP_EQ(FPBits::one().get_val(), LIBC_NAMESPACE::cospif16(zero));
24 EXPECT_MATH_ERRNO(0);
25
26 EXPECT_FP_EQ(FPBits::one().get_val(), LIBC_NAMESPACE::cospif16(neg_zero));
27 EXPECT_MATH_ERRNO(0);
28
29 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::cospif16(inf));
30 EXPECT_MATH_ERRNO(EDOM);
31
32 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::cospif16(neg_inf));
33 EXPECT_MATH_ERRNO(EDOM);
34 }
35
TEST_F(LlvmLibcCospif16Test,Integers)36 TEST_F(LlvmLibcCospif16Test, Integers) {
37 EXPECT_FP_EQ(FPBits::one().get_val(),
38 LIBC_NAMESPACE::cospif16(
39 LIBC_NAMESPACE::fputil::cast<float16>(-0x420.0p0)));
40 EXPECT_FP_EQ(FPBits::one().get_val(),
41 LIBC_NAMESPACE::cospif16(
42 LIBC_NAMESPACE::fputil::cast<float16>(-0x1.4p+14)));
43 EXPECT_FP_EQ(FPBits::one(Sign::NEG).get_val(),
44 LIBC_NAMESPACE::cospif16(
45 LIBC_NAMESPACE::fputil::cast<float16>(0x421.0p0)));
46 EXPECT_FP_EQ(FPBits::one(Sign::NEG).get_val(),
47 LIBC_NAMESPACE::cospif16(
48 LIBC_NAMESPACE::fputil::cast<float16>(0x333.0p0)));
49 EXPECT_FP_EQ(zero, LIBC_NAMESPACE::cospif16(
50 LIBC_NAMESPACE::fputil::cast<float16>(-0x1.28p4)));
51 EXPECT_FP_EQ(zero, LIBC_NAMESPACE::cospif16(
52 LIBC_NAMESPACE::fputil::cast<float16>(-0x1.ffcp9)));
53 EXPECT_FP_EQ(zero, LIBC_NAMESPACE::cospif16(
54 LIBC_NAMESPACE::fputil::cast<float16>(0x1.01p7)));
55 EXPECT_FP_EQ(zero, LIBC_NAMESPACE::cospif16(
56 LIBC_NAMESPACE::fputil::cast<float16>(0x1.f6cp9)));
57 }
58