1 //===-- Unittests for cbrtf -----------------------------------------------===//
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/math/cbrtf.h"
10 #include "test/UnitTest/FPMatcher.h"
11 #include "test/UnitTest/Test.h"
12
13 using LlvmLibcCbrtfTest = LIBC_NAMESPACE::testing::FPTest<float>;
14
15 using LIBC_NAMESPACE::testing::tlog;
16
TEST_F(LlvmLibcCbrtfTest,SpecialNumbers)17 TEST_F(LlvmLibcCbrtfTest, SpecialNumbers) {
18 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::cbrtf(aNaN));
19 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::cbrtf(inf));
20 EXPECT_FP_EQ_ALL_ROUNDING(neg_inf, LIBC_NAMESPACE::cbrtf(neg_inf));
21 EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::cbrtf(zero));
22 EXPECT_FP_EQ_ALL_ROUNDING(neg_zero, LIBC_NAMESPACE::cbrtf(neg_zero));
23 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::cbrtf(1.0f));
24 EXPECT_FP_EQ_ALL_ROUNDING(-1.0f, LIBC_NAMESPACE::cbrtf(-1.0f));
25 EXPECT_FP_EQ_ALL_ROUNDING(2.0f, LIBC_NAMESPACE::cbrtf(8.0f));
26 EXPECT_FP_EQ_ALL_ROUNDING(-2.0f, LIBC_NAMESPACE::cbrtf(-8.0f));
27 EXPECT_FP_EQ_ALL_ROUNDING(3.0f, LIBC_NAMESPACE::cbrtf(27.0f));
28 EXPECT_FP_EQ_ALL_ROUNDING(-3.0f, LIBC_NAMESPACE::cbrtf(-27.0f));
29 EXPECT_FP_EQ_ALL_ROUNDING(5.0f, LIBC_NAMESPACE::cbrtf(125.0f));
30 EXPECT_FP_EQ_ALL_ROUNDING(-5.0f, LIBC_NAMESPACE::cbrtf(-125.0f));
31 EXPECT_FP_EQ_ALL_ROUNDING(0x1.0p42f, LIBC_NAMESPACE::cbrtf(0x1.0p126f));
32 EXPECT_FP_EQ_ALL_ROUNDING(-0x1.0p42f, LIBC_NAMESPACE::cbrtf(-0x1.0p126f));
33 }
34
35 #ifdef LIBC_TEST_FTZ_DAZ
36
37 using namespace LIBC_NAMESPACE::testing;
38
TEST_F(LlvmLibcCbrtfTest,FTZMode)39 TEST_F(LlvmLibcCbrtfTest, FTZMode) {
40 ModifyMXCSR mxcsr(FTZ);
41
42 EXPECT_FP_EQ(0x1.428a3p-50f, LIBC_NAMESPACE::cbrtf(min_denormal));
43 EXPECT_FP_EQ(0x1.fffffep-43f, LIBC_NAMESPACE::cbrtf(max_denormal));
44 }
45
TEST_F(LlvmLibcCbrtfTest,DAZMode)46 TEST_F(LlvmLibcCbrtfTest, DAZMode) {
47 ModifyMXCSR mxcsr(DAZ);
48
49 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::cbrtf(min_denormal));
50 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::cbrtf(max_denormal));
51 }
52
TEST_F(LlvmLibcCbrtfTest,FTZDAZMode)53 TEST_F(LlvmLibcCbrtfTest, FTZDAZMode) {
54 ModifyMXCSR mxcsr(FTZ | DAZ);
55
56 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::cbrtf(min_denormal));
57 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::cbrtf(max_denormal));
58 }
59
60 #endif
61