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[libc][NFC] Add template tests for a bunch of math functions.
Namely, template tests have been added for the following functions: ceil, copysign, fabs, fmax, fmin, floor, trunc, round.
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Siva Chandra Reddy
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Apr 16, 2021
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,84 @@ | ||
| //===-- Utility class to test ceil[f|l] -------------------------*- C++ -*-===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #include "utils/FPUtil/TestHelpers.h" | ||
| #include "utils/MPFRWrapper/MPFRUtils.h" | ||
| #include "utils/UnitTest/Test.h" | ||
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| #include <math.h> | ||
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| namespace mpfr = __llvm_libc::testing::mpfr; | ||
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| template <typename T> class CeilTest : public __llvm_libc::testing::Test { | ||
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| DECLARE_SPECIAL_CONSTANTS(T) | ||
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| public: | ||
| typedef T (*CeilFunc)(T); | ||
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| void testSpecialNumbers(CeilFunc func) { | ||
| EXPECT_FP_EQ(zero, func(zero)); | ||
| EXPECT_FP_EQ(negZero, func(negZero)); | ||
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| EXPECT_FP_EQ(inf, func(inf)); | ||
| EXPECT_FP_EQ(negInf, func(negInf)); | ||
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| EXPECT_FP_EQ(aNaN, func(aNaN)); | ||
| } | ||
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| void testRoundedNumbers(CeilFunc func) { | ||
| EXPECT_FP_EQ(T(1.0), func(T(1.0))); | ||
| EXPECT_FP_EQ(T(-1.0), func(T(-1.0))); | ||
| EXPECT_FP_EQ(T(10.0), func(T(10.0))); | ||
| EXPECT_FP_EQ(T(-10.0), func(T(-10.0))); | ||
| EXPECT_FP_EQ(T(1234.0), func(T(1234.0))); | ||
| EXPECT_FP_EQ(T(-1234.0), func(T(-1234.0))); | ||
| } | ||
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| void testFractions(CeilFunc func) { | ||
| EXPECT_FP_EQ(T(1.0), func(T(0.5))); | ||
| EXPECT_FP_EQ(T(-0.0), func(T(-0.5))); | ||
| EXPECT_FP_EQ(T(1.0), func(T(0.115))); | ||
| EXPECT_FP_EQ(T(-0.0), func(T(-0.115))); | ||
| EXPECT_FP_EQ(T(1.0), func(T(0.715))); | ||
| EXPECT_FP_EQ(T(-0.0), func(T(-0.715))); | ||
| EXPECT_FP_EQ(T(2.0), func(T(1.3))); | ||
| EXPECT_FP_EQ(T(-1.0), func(T(-1.3))); | ||
| EXPECT_FP_EQ(T(2.0), func(T(1.5))); | ||
| EXPECT_FP_EQ(T(-1.0), func(T(-1.5))); | ||
| EXPECT_FP_EQ(T(2.0), func(T(1.75))); | ||
| EXPECT_FP_EQ(T(-1.0), func(T(-1.75))); | ||
| EXPECT_FP_EQ(T(11.0), func(T(10.32))); | ||
| EXPECT_FP_EQ(T(-10.0), func(T(-10.32))); | ||
| EXPECT_FP_EQ(T(11.0), func(T(10.65))); | ||
| EXPECT_FP_EQ(T(-10.0), func(T(-10.65))); | ||
| EXPECT_FP_EQ(T(1235.0), func(T(1234.38))); | ||
| EXPECT_FP_EQ(T(-1234.0), func(T(-1234.38))); | ||
| EXPECT_FP_EQ(T(1235.0), func(T(1234.96))); | ||
| EXPECT_FP_EQ(T(-1234.0), func(T(-1234.96))); | ||
| } | ||
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| void testRange(CeilFunc func) { | ||
| constexpr UIntType count = 10000000; | ||
| constexpr UIntType step = UIntType(-1) / count; | ||
| for (UIntType i = 0, v = 0; i <= count; ++i, v += step) { | ||
| T x = T(FPBits(v)); | ||
| if (isnan(x) || isinf(x)) | ||
| continue; | ||
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| ASSERT_MPFR_MATCH(mpfr::Operation::Ceil, x, func(x), 0.0); | ||
| } | ||
| } | ||
| }; | ||
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| #define LIST_CEIL_TESTS(T, func) \ | ||
| using LlvmLibcCeilTest = CeilTest<T>; \ | ||
| TEST_F(LlvmLibcCeilTest, SpecialNumbers) { testSpecialNumbers(&func); } \ | ||
| TEST_F(LlvmLibcCeilTest, RoundedNubmers) { testRoundedNumbers(&func); } \ | ||
| TEST_F(LlvmLibcCeilTest, Fractions) { testFractions(&func); } \ | ||
| TEST_F(LlvmLibcCeilTest, Range) { testRange(&func); } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| //===-- Utility class to test copysign[f|l] ---------------------*- C++ -*-===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #include "utils/FPUtil/TestHelpers.h" | ||
| #include "utils/MPFRWrapper/MPFRUtils.h" | ||
| #include "utils/UnitTest/Test.h" | ||
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| #include <math.h> | ||
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| namespace mpfr = __llvm_libc::testing::mpfr; | ||
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| template <typename T> class CopySignTest : public __llvm_libc::testing::Test { | ||
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| DECLARE_SPECIAL_CONSTANTS(T) | ||
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| public: | ||
| typedef T (*CopySignFunc)(T, T); | ||
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| void testSpecialNumbers(CopySignFunc func) { | ||
| EXPECT_FP_EQ(aNaN, func(aNaN, -1.0)); | ||
| EXPECT_FP_EQ(aNaN, func(aNaN, 1.0)); | ||
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| EXPECT_FP_EQ(negInf, func(inf, -1.0)); | ||
| EXPECT_FP_EQ(inf, func(negInf, 1.0)); | ||
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| EXPECT_FP_EQ(negZero, func(zero, -1.0)); | ||
| EXPECT_FP_EQ(zero, func(negZero, 1.0)); | ||
| } | ||
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| void testRange(CopySignFunc func) { | ||
| constexpr UIntType count = 10000000; | ||
| constexpr UIntType step = UIntType(-1) / count; | ||
| for (UIntType i = 0, v = 0; i <= count; ++i, v += step) { | ||
| T x = T(FPBits(v)); | ||
| if (isnan(x) || isinf(x)) | ||
| continue; | ||
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| double res1 = func(x, -x); | ||
| ASSERT_FP_EQ(res1, -x); | ||
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| double res2 = func(x, x); | ||
| ASSERT_FP_EQ(res2, x); | ||
| } | ||
| } | ||
| }; | ||
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| #define LIST_COPYSIGN_TESTS(T, func) \ | ||
| using LlvmLibcCopySignTest = CopySignTest<T>; \ | ||
| TEST_F(LlvmLibcCopySignTest, SpecialNumbers) { testSpecialNumbers(&func); } \ | ||
| TEST_F(LlvmLibcCopySignTest, Range) { testRange(&func); } |
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