28 lines · cpp
1//===-- Implementation of roundf16 function -------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/math/roundf16.h"10#include "src/__support/FPUtil/NearestIntegerOperations.h"11#include "src/__support/FPUtil/cast.h"12#include "src/__support/common.h"13#include "src/__support/macros/config.h"14#include "src/__support/macros/properties/cpu_features.h"15 16namespace LIBC_NAMESPACE_DECL {17 18LLVM_LIBC_FUNCTION(float16, roundf16, (float16 x)) {19#if defined(__LIBC_USE_BUILTIN_ROUND) && \20 defined(LIBC_TARGET_CPU_HAS_FAST_FLOAT16_OPS)21 return fputil::cast<float16>(__builtin_roundf(x));22#else23 return fputil::round(x);24#endif25}26 27} // namespace LIBC_NAMESPACE_DECL28