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-exception 6 // 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 16 namespace LIBC_NAMESPACE_DECL { 17 18 LLVM_LIBC_FUNCTION(float16, fabsf16, (float16 x)) { 19 // For x86, GCC generates better code from the generic implementation. 20 // https://godbolt.org/z/K9orM4hTa 21 #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 #else 25 return fputil::abs(x); 26 #endif 27 } 28 29 } // namespace LIBC_NAMESPACE_DECL 30