1*65cf7afbSOverMighty //===-- Exhaustive test for logf16 ----------------------------------------===// 2*65cf7afbSOverMighty // 3*65cf7afbSOverMighty // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*65cf7afbSOverMighty // See https://llvm.org/LICENSE.txt for license information. 5*65cf7afbSOverMighty // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*65cf7afbSOverMighty // 7*65cf7afbSOverMighty //===----------------------------------------------------------------------===// 8*65cf7afbSOverMighty 9*65cf7afbSOverMighty #include "src/math/logf16.h" 10*65cf7afbSOverMighty #include "test/UnitTest/FPMatcher.h" 11*65cf7afbSOverMighty #include "test/UnitTest/Test.h" 12*65cf7afbSOverMighty #include "utils/MPFRWrapper/MPFRUtils.h" 13*65cf7afbSOverMighty 14*65cf7afbSOverMighty using LlvmLibcLogf16Test = LIBC_NAMESPACE::testing::FPTest<float16>; 15*65cf7afbSOverMighty 16*65cf7afbSOverMighty namespace mpfr = LIBC_NAMESPACE::testing::mpfr; 17*65cf7afbSOverMighty 18*65cf7afbSOverMighty // Range: [0, Inf]; 19*65cf7afbSOverMighty static constexpr uint16_t POS_START = 0x0000U; 20*65cf7afbSOverMighty static constexpr uint16_t POS_STOP = 0x7c00U; 21*65cf7afbSOverMighty 22*65cf7afbSOverMighty // Range: [-Inf, 0]; 23*65cf7afbSOverMighty static constexpr uint16_t NEG_START = 0x8000U; 24*65cf7afbSOverMighty static constexpr uint16_t NEG_STOP = 0xfc00U; 25*65cf7afbSOverMighty 26*65cf7afbSOverMighty TEST_F(LlvmLibcLogf16Test, PositiveRange) { 27*65cf7afbSOverMighty for (uint16_t v = POS_START; v <= POS_STOP; ++v) { 28*65cf7afbSOverMighty float16 x = FPBits(v).get_val(); 29*65cf7afbSOverMighty EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Log, x, 30*65cf7afbSOverMighty LIBC_NAMESPACE::logf16(x), 0.5); 31*65cf7afbSOverMighty } 32*65cf7afbSOverMighty } 33*65cf7afbSOverMighty 34*65cf7afbSOverMighty TEST_F(LlvmLibcLogf16Test, NegativeRange) { 35*65cf7afbSOverMighty for (uint16_t v = NEG_START; v <= NEG_STOP; ++v) { 36*65cf7afbSOverMighty float16 x = FPBits(v).get_val(); 37*65cf7afbSOverMighty EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Log, x, 38*65cf7afbSOverMighty LIBC_NAMESPACE::logf16(x), 0.5); 39*65cf7afbSOverMighty } 40*65cf7afbSOverMighty } 41