Warning: This file is not a C or C++ file. It does not have highlighting.

1//===--- Round floating point to nearest integer on aarch64 -----*- C++ -*-===//
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#ifndef LLVM_LIBC_SRC___SUPPORT_FPUTIL_AARCH64_NEAREST_INTEGER_H
10#define LLVM_LIBC_SRC___SUPPORT_FPUTIL_AARCH64_NEAREST_INTEGER_H
11
12#include "src/__support/common.h"
13#include "src/__support/macros/config.h"
14#include "src/__support/macros/properties/architectures.h"
15
16#if !defined(LIBC_TARGET_ARCH_IS_AARCH64)
17#error "Invalid include"
18#endif
19
20namespace LIBC_NAMESPACE_DECL {
21namespace fputil {
22
23LIBC_INLINE float nearest_integer(float x) {
24 float result;
25 __asm__ __volatile__("frintn %s0, %s1\n\t" : "=w"(result) : "w"(x));
26 return result;
27}
28
29LIBC_INLINE double nearest_integer(double x) {
30 double result;
31 __asm__ __volatile__("frintn %d0, %d1\n\t" : "=w"(result) : "w"(x));
32 return result;
33}
34
35} // namespace fputil
36} // namespace LIBC_NAMESPACE_DECL
37
38#endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_AARCH64_NEAREST_INTEGER_H
39

Warning: This file is not a C or C++ file. It does not have highlighting.

source code of libc/src/__support/FPUtil/aarch64/nearest_integer.h