1//===-- Common header for FMA implementations -------------------*- 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_FMA_H
10#define LLVM_LIBC_SRC___SUPPORT_FPUTIL_FMA_H
11
12#include "src/__support/macros/properties/architectures.h"
13#include "src/__support/macros/properties/cpu_features.h" // LIBC_TARGET_CPU_HAS_FMA
14
15#if defined(LIBC_TARGET_CPU_HAS_FMA)
16
17#if defined(LIBC_TARGET_ARCH_IS_X86_64)
18#include "x86_64/FMA.h"
19#elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
20#include "aarch64/FMA.h"
21#elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
22#include "riscv/FMA.h"
23#elif defined(LIBC_TARGET_ARCH_IS_GPU)
24#include "gpu/FMA.h"
25#endif
26
27#else
28// FMA instructions are not available
29#include "generic/FMA.h"
30#include "src/__support/CPP/type_traits.h"
31
32namespace LIBC_NAMESPACE {
33namespace fputil {
34
35template <typename T> LIBC_INLINE T fma(T x, T y, T z) {
36 return generic::fma(x, y, z);
37}
38
39} // namespace fputil
40} // namespace LIBC_NAMESPACE
41
42#endif
43
44#endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_FMA_H
45

source code of libc/src/__support/FPUtil/FMA.h