| //===-- Unittests for hypotf ----------------------------------------------===// |
| // |
| // 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 "src/math/hypotf.h" |
| #include "utils/FPUtil/FPBits.h" |
| #include "utils/FPUtil/TestHelpers.h" |
| #include "utils/MPFRWrapper/MPFRUtils.h" |
| #include "utils/UnitTest/Test.h" |
| #include <math.h> |
| |
| using FPBits = __llvm_libc::fputil::FPBits<float>; |
| using UIntType = FPBits::UIntType; |
| |
| namespace mpfr = __llvm_libc::testing::mpfr; |
| |
| DECLARE_SPECIAL_CONSTANTS(float) |
| |
| TEST(HypotfTest, SpecialNumbers) { |
| EXPECT_FP_EQ(__llvm_libc::hypotf(inf, nan), inf); |
| EXPECT_FP_EQ(__llvm_libc::hypotf(nan, negInf), inf); |
| EXPECT_FP_EQ(__llvm_libc::hypotf(zero, inf), inf); |
| EXPECT_FP_EQ(__llvm_libc::hypotf(negInf, negZero), inf); |
| |
| EXPECT_FP_EQ(__llvm_libc::hypotf(nan, nan), nan); |
| EXPECT_FP_EQ(__llvm_libc::hypotf(nan, zero), nan); |
| EXPECT_FP_EQ(__llvm_libc::hypotf(negZero, nan), nan); |
| |
| EXPECT_FP_EQ(__llvm_libc::hypotf(negZero, zero), zero); |
| } |
| |
| TEST(HypotfTest, 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); |
| float result = __llvm_libc::hypotf(x, y); |
| mpfr::BinaryInput<float> input{x, y}; |
| ASSERT_MPFR_MATCH(mpfr::Operation::Hypot, input, result, 0.5); |
| } |
| } |
| |
| TEST(HypotfTest, 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); |
| float result = __llvm_libc::hypotf(x, y); |
| ; |
| mpfr::BinaryInput<float> input{x, y}; |
| ASSERT_MPFR_MATCH(mpfr::Operation::Hypot, input, result, 0.5); |
| } |
| } |