libc/src/__support/FPUtil/FMA.h

   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_RISCV64)
  22 #include "riscv64/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
  32 namespace __llvm_libc {
  33 namespace fputil {
  34
  35 template <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 __llvm_libc
  41
  42 #endif
  43
  44 #endif // LLVM_LIBC_SRC_SUPPORT_FPUTIL_FMA_H