1 //===-- Unittests for log1pf ----------------------------------------------===//
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/FPUtil/FPBits.h"
11 #include "src/errno/libc_errno.h"
12 #include "src/math/log1pf.h"
13 #include "test/UnitTest/FPMatcher.h"
14 #include "test/UnitTest/Test.h"
15
16 #include <stdint.h>
17
18 using LlvmLibcLog1pfTest = LIBC_NAMESPACE::testing::FPTest<float>;
19
TEST_F(LlvmLibcLog1pfTest,SpecialNumbers)20 TEST_F(LlvmLibcLog1pfTest, SpecialNumbers) {
21 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::log1pf(aNaN));
22 EXPECT_FP_EQ(inf, LIBC_NAMESPACE::log1pf(inf));
23 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log1pf(neg_inf), FE_INVALID);
24 EXPECT_FP_EQ(zero, LIBC_NAMESPACE::log1pf(0.0f));
25 EXPECT_FP_EQ(neg_zero, LIBC_NAMESPACE::log1pf(-0.0f));
26 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log1pf(-1.0f),
27 FE_DIVBYZERO);
28 }
29
30 #ifdef LIBC_TEST_FTZ_DAZ
31
32 using namespace LIBC_NAMESPACE::testing;
33
TEST_F(LlvmLibcLog1pfTest,FTZMode)34 TEST_F(LlvmLibcLog1pfTest, FTZMode) {
35 ModifyMXCSR mxcsr(FTZ);
36
37 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::log1pf(min_denormal));
38 }
39
TEST_F(LlvmLibcLog1pfTest,DAZMode)40 TEST_F(LlvmLibcLog1pfTest, DAZMode) {
41 ModifyMXCSR mxcsr(DAZ);
42
43 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::log1pf(min_denormal));
44 }
45
TEST_F(LlvmLibcLog1pfTest,FTZDAZMode)46 TEST_F(LlvmLibcLog1pfTest, FTZDAZMode) {
47 ModifyMXCSR mxcsr(FTZ | DAZ);
48
49 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::log1pf(min_denormal));
50 }
51
52 #endif
53