libc/src/__support/FPUtil/PlatformDefs.h

   1 //===-- Platform specific macro definitions ---------------------*- 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_PLATFORM_DEFS_H
  10 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_PLATFORM_DEFS_H
  11
  12 #include "src/__support/macros/properties/architectures.h"
  13
  14 #if defined(LIBC_TARGET_ARCH_IS_X86)
  15 #define X87_FPU
  16 #endif
  17
  18 // https://developer.arm.com/documentation/dui0491/i/C-and-C---Implementation-Details/Basic-data-types
  19 // https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms
  20 // https://docs.amd.com/bundle/HIP-Programming-Guide-v5.1/page/Programming_with_HIP.html
  21 #if defined(_WIN32) || defined(__arm__) || defined(__NVPTX__) ||               \
  22     defined(__AMDGPU__) || (defined(__APPLE__) && defined(__aarch64__))
  23 #define LONG_DOUBLE_IS_DOUBLE
  24 #endif
  25
  26 #if !defined(LONG_DOUBLE_IS_DOUBLE) && defined(X87_FPU)
  27 #define SPECIAL_X86_LONG_DOUBLE
  28 #endif
  29
  30 #endif // LLVM_LIBC_SRC_SUPPORT_FPUTIL_PLATFORM_DEFS_H