| 1 | //===-- Unittests for acosf -----------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "hdr/math_macros.h" |
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| 10 | #include "src/__support/FPUtil/FPBits.h" |
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| 11 | #include "src/__support/libc_errno.h" |
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| 12 | #include "src/math/acosf.h" |
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| 13 | #include "test/UnitTest/FPMatcher.h" |
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| 14 | #include "test/UnitTest/Test.h" |
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| 15 | |
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| 16 | #include <stdint.h> |
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| 17 | |
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| 18 | using LlvmLibcAcosfTest = LIBC_NAMESPACE::testing::FPTest<float>; |
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| 19 | |
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| 20 | TEST_F(LlvmLibcAcosfTest, SpecialNumbers) { |
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| 21 | libc_errno = 0; |
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| 22 | |
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| 23 | EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::acosf(sNaN), FE_INVALID); |
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| 24 | EXPECT_MATH_ERRNO(0); |
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| 25 | |
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| 26 | EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acosf(aNaN)); |
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| 27 | EXPECT_MATH_ERRNO(0); |
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| 28 | |
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| 29 | EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acosf(inf)); |
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| 30 | EXPECT_MATH_ERRNO(EDOM); |
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| 31 | |
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| 32 | EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acosf(neg_inf)); |
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| 33 | EXPECT_MATH_ERRNO(EDOM); |
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| 34 | |
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| 35 | EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::acosf(1.0f)); |
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| 36 | EXPECT_MATH_ERRNO(0); |
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| 37 | |
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| 38 | EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acosf(2.0f)); |
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| 39 | EXPECT_MATH_ERRNO(EDOM); |
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| 40 | |
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| 41 | EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acosf(-2.0f)); |
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| 42 | EXPECT_MATH_ERRNO(EDOM); |
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| 43 | } |
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| 44 | |
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| 45 | #ifdef LIBC_TEST_FTZ_DAZ |
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| 46 | |
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| 47 | using namespace LIBC_NAMESPACE::testing; |
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| 48 | |
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| 49 | TEST_F(LlvmLibcAcosfTest, FTZMode) { |
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| 50 | ModifyMXCSR mxcsr(FTZ); |
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| 51 | |
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| 52 | EXPECT_FP_EQ(0x1.921fb6p0f, LIBC_NAMESPACE::acosf(min_denormal)); |
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| 53 | } |
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| 54 | |
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| 55 | TEST_F(LlvmLibcAcosfTest, DAZMode) { |
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| 56 | ModifyMXCSR mxcsr(DAZ); |
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| 57 | |
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| 58 | EXPECT_FP_EQ(0x1.921fb6p0f, LIBC_NAMESPACE::acosf(min_denormal)); |
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| 59 | } |
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| 60 | |
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| 61 | TEST_F(LlvmLibcAcosfTest, FTZDAZMode) { |
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| 62 | ModifyMXCSR mxcsr(FTZ | DAZ); |
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| 63 | |
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| 64 | EXPECT_FP_EQ(0x1.921fb6p0f, LIBC_NAMESPACE::acosf(min_denormal)); |
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| 65 | } |
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| 66 | |
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| 67 | #endif |
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| 68 | |
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