1 //===-- Exhaustive test for expf16 ----------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/math/expf16.h" 10 #include "test/UnitTest/FPMatcher.h" 11 #include "test/UnitTest/Test.h" 12 #include "utils/MPFRWrapper/MPFRUtils.h" 13 14 using LlvmLibcExpf16Test = LIBC_NAMESPACE::testing::FPTest<float16>; 15 16 namespace mpfr = LIBC_NAMESPACE::testing::mpfr; 17 18 // Range: [0, Inf]; 19 static constexpr uint16_t POS_START = 0x0000U; 20 static constexpr uint16_t POS_STOP = 0x7c00U; 21 22 // Range: [-Inf, 0]; 23 static constexpr uint16_t NEG_START = 0x8000U; 24 static constexpr uint16_t NEG_STOP = 0xfc00U; 25 26 TEST_F(LlvmLibcExpf16Test, PositiveRange) { 27 for (uint16_t v = POS_START; v <= POS_STOP; ++v) { 28 float16 x = FPBits(v).get_val(); 29 EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Exp, x, 30 LIBC_NAMESPACE::expf16(x), 0.5); 31 } 32 } 33 34 TEST_F(LlvmLibcExpf16Test, NegativeRange) { 35 for (uint16_t v = NEG_START; v <= NEG_STOP; ++v) { 36 float16 x = FPBits(v).get_val(); 37 EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Exp, x, 38 LIBC_NAMESPACE::expf16(x), 0.5); 39 } 40 } 41