| //===-- Unittests for remquof ---------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "include/math.h" |
| #include "src/math/remquof.h" |
| #include "utils/FPUtil/BasicOperations.h" |
| #include "utils/FPUtil/FPBits.h" |
| #include "utils/FPUtil/TestHelpers.h" |
| #include "utils/MPFRWrapper/MPFRUtils.h" |
| #include "utils/UnitTest/Test.h" |
| |
| using FPBits = __llvm_libc::fputil::FPBits<float>; |
| using UIntType = FPBits::UIntType; |
| |
| namespace mpfr = __llvm_libc::testing::mpfr; |
| |
| static const float zero = FPBits::zero(); |
| static const float negZero = FPBits::negZero(); |
| static const float nan = FPBits::buildNaN(1); |
| static const float inf = FPBits::inf(); |
| static const float negInf = FPBits::negInf(); |
| |
| TEST(RemquofTest, SpecialNumbers) { |
| int exponent; |
| float x, y; |
| |
| y = 1.0f; |
| x = inf; |
| EXPECT_NE(isnan(__llvm_libc::remquof(x, y, &exponent)), 0); |
| x = negInf; |
| EXPECT_NE(isnan(__llvm_libc::remquof(x, y, &exponent)), 0); |
| |
| x = 1.0f; |
| y = zero; |
| EXPECT_NE(isnan(__llvm_libc::remquof(x, y, &exponent)), 0); |
| y = negZero; |
| EXPECT_NE(isnan(__llvm_libc::remquof(x, y, &exponent)), 0); |
| |
| y = nan; |
| x = 1.0f; |
| EXPECT_NE(isnan(__llvm_libc::remquof(x, y, &exponent)), 0); |
| |
| y = 1.0f; |
| x = nan; |
| EXPECT_NE(isnan(__llvm_libc::remquof(x, y, &exponent)), 0); |
| |
| x = nan; |
| y = nan; |
| EXPECT_NE(isnan(__llvm_libc::remquof(x, y, &exponent)), 0); |
| |
| x = zero; |
| y = 1.0f; |
| EXPECT_FP_EQ(__llvm_libc::remquof(x, y, &exponent), zero); |
| |
| x = negZero; |
| y = 1.0f; |
| EXPECT_FP_EQ(__llvm_libc::remquof(x, y, &exponent), negZero); |
| } |
| |
| TEST(RemquofTest, SubnormalRange) { |
| constexpr UIntType count = 1000001; |
| constexpr UIntType step = |
| (FPBits::maxSubnormal - FPBits::minSubnormal) / count; |
| for (UIntType v = FPBits::minSubnormal, w = FPBits::maxSubnormal; |
| v <= FPBits::maxSubnormal && w >= FPBits::minSubnormal; |
| v += step, w -= step) { |
| float x = FPBits(v), y = FPBits(w); |
| mpfr::BinaryOutput<float> result; |
| mpfr::BinaryInput<float> input{x, y}; |
| result.f = __llvm_libc::remquof(x, y, &result.i); |
| ASSERT_MPFR_MATCH(mpfr::Operation::RemQuo, input, result, 0.0); |
| } |
| } |
| |
| TEST(RemquofTest, NormalRange) { |
| constexpr UIntType count = 1000001; |
| constexpr UIntType step = (FPBits::maxNormal - FPBits::minNormal) / count; |
| for (UIntType v = FPBits::minNormal, w = FPBits::maxNormal; |
| v <= FPBits::maxNormal && w >= FPBits::minNormal; v += step, w -= step) { |
| float x = FPBits(v), y = FPBits(w); |
| mpfr::BinaryOutput<float> result; |
| mpfr::BinaryInput<float> input{x, y}; |
| result.f = __llvm_libc::remquof(x, y, &result.i); |
| ASSERT_MPFR_MATCH(mpfr::Operation::RemQuo, input, result, 0.0); |
| } |
| } |