30 lines · cpp
1//===-- Implementation of fabsf16 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/fabsf16.h"10#include "src/__support/FPUtil/BasicOperations.h"11#include "src/__support/common.h"12#include "src/__support/macros/config.h"13#include "src/__support/macros/properties/architectures.h"14#include "src/__support/macros/properties/compiler.h"15 16namespace LIBC_NAMESPACE_DECL {17 18LLVM_LIBC_FUNCTION(float16, fabsf16, (float16 x)) {19 // For x86, GCC generates better code from the generic implementation.20 // https://godbolt.org/z/K9orM4hTa21#if defined(__LIBC_MISC_MATH_BASIC_OPS_OPT) && \22 !(defined(LIBC_TARGET_ARCH_IS_X86) && defined(LIBC_COMPILER_IS_GCC))23 return __builtin_fabsf16(x);24#else25 return fputil::abs(x);26#endif27}28 29} // namespace LIBC_NAMESPACE_DECL30