From 439d371594c49d35b66493c8d2c33f2d16144f6d Mon Sep 17 00:00:00 2001 From: Guillaume Chatelet Date: Thu, 1 Feb 2018 10:03:09 +0100 Subject: Adding code. Closes #0. --- include/cpu_features_macros.h | 121 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) create mode 100644 include/cpu_features_macros.h (limited to 'include/cpu_features_macros.h') diff --git a/include/cpu_features_macros.h b/include/cpu_features_macros.h new file mode 100644 index 0000000..a8d4229 --- /dev/null +++ b/include/cpu_features_macros.h @@ -0,0 +1,121 @@ +// Copyright 2017 Google Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#ifndef THIRD_PARTY_CPU_FEATURES_INCLUDE_CPU_FEATURES_MACROS_H_ +#define THIRD_PARTY_CPU_FEATURES_INCLUDE_CPU_FEATURES_MACROS_H_ + +//////////////////////////////////////////////////////////////////////////////// +// Architectures +//////////////////////////////////////////////////////////////////////////////// + +#if ((defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || \ + defined(__x86_64__)) && \ + !defined(__pnacl__) && !defined(__CLR_VER)) +#define CPU_FEATURES_ARCH_X86 +#endif + +#if (defined(__arm__) || defined(_M_ARM)) +#define CPU_FEATURES_ARCH_ARM +#endif + +#if defined(__aarch64__) +#define CPU_FEATURES_ARCH_AARCH64 +#endif + +#if (defined(CPU_FEATURES_ARCH_AARCH64) || defined(CPU_FEATURES_ARCH_ARM)) +#define CPU_FEATURES_ARCH_ANY_ARM +#endif + +#if defined(__mips__) +#define CPU_FEATURES_ARCH_MIPS +#endif + +//////////////////////////////////////////////////////////////////////////////// +// Os +//////////////////////////////////////////////////////////////////////////////// + +#if defined(__linux__) +#define CPU_FEATURES_OS_LINUX_OR_ANDROID +#endif + +#if defined(__ANDROID__) +#define CPU_FEATURES_OS_ANDROID +#endif + +#if (defined(_WIN64) || defined(_WIN32)) +#define CPU_FEATURES_OS_WINDOWS +#endif + +//////////////////////////////////////////////////////////////////////////////// +// Compilers +//////////////////////////////////////////////////////////////////////////////// + +#if defined(__clang__) +#define CPU_FEATURES_COMPILER_CLANG +#endif + +#if defined(__GNUC__) && !defined(__clang__) +#define CPU_FEATURES_COMPILER_GCC +#endif + +#if defined(_MSC_VER) +#define CPU_FEATURES_COMPILER_MSC +#endif + +//////////////////////////////////////////////////////////////////////////////// +// Cpp +//////////////////////////////////////////////////////////////////////////////// + +#if defined(__cplusplus) +#define START_CPP_NAMESPACE \ + namespace cpu_features { \ + extern "C" { +#define END_CPP_NAMESPACE \ + } \ + } +#else +#define START_CPP_NAMESPACE +#define END_CPP_NAMESPACE +#endif + +//////////////////////////////////////////////////////////////////////////////// +// Compiler flags +//////////////////////////////////////////////////////////////////////////////// + +// Use the following to check if a feature is known to be available at compile +// time. See README.md for an example. +#if defined(CPU_FEATURES_ARCH_X86) +#define CPU_FEATURES_COMPILED_X86_AES defined(__AES__) +#define CPU_FEATURES_COMPILED_X86_F16C defined(__F16C__) +#define CPU_FEATURES_COMPILED_X86_BMI defined(__BMI__) +#define CPU_FEATURES_COMPILED_X86_BMI2 defined(__BMI2__) +#define CPU_FEATURES_COMPILED_X86_SSE (defined(__SSE__) || (_M_IX86_FP >= 1)) +#define CPU_FEATURES_COMPILED_X86_SSE2 (defined(__SSE2__) || (_M_IX86_FP >= 2)) +#define CPU_FEATURES_COMPILED_X86_SSE3 defined(__SSE3__) +#define CPU_FEATURES_COMPILED_X86_SSSE3 defined(__SSSE3__) +#define CPU_FEATURES_COMPILED_X86_SSE4_1 defined(__SSE4_1__) +#define CPU_FEATURES_COMPILED_X86_SSE4_2 defined(__SSE4_2__) +#define CPU_FEATURES_COMPILED_X86_AVX defined(__AVX__) +#define CPU_FEATURES_COMPILED_x86_AVX2 defined(__AVX2__) +#endif + +#if defined(CPU_FEATURES_ARCH_ANY_ARM) +#define CPU_FEATURES_COMPILED_ANY_ARM_NEON defined(__ARM_NEON__) +#endif + +#if defined(CPU_FEATURES_ARCH_MIPS) +#define CPU_FEATURES_COMPILED_MIPS_MSA defined(__mips_msa) +#endif + +#endif // THIRD_PARTY_CPU_FEATURES_INCLUDE_CPU_FEATURES_MACROS_H_ -- cgit v1.2.3