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-exception 6 // 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 16 namespace LIBC_NAMESPACE_DECL { 17 18 LLVM_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 #else 23 return fputil::round(x); 24 #endif 25 } 26 27 } // namespace LIBC_NAMESPACE_DECL 28