File: SimdEnable.h

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/*
* Simd Library (http://ermig1979.github.io/Simd).
*
* Copyright (c) 2011-2022 Yermalayeu Ihar.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __SimdEnable_h__
#define __SimdEnable_h__

#include "Simd/SimdDefs.h"

#if defined(_MSC_VER)

#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <windows.h>
#include <intrin.h>

#elif defined(__GNUC__)

#if defined(SIMD_X86_ENABLE) || defined(SIMD_X64_ENABLE)
#include <cpuid.h>
#endif

#if defined(__APPLE__) && defined(__MACH__) // Apple OSX and iOS (Darwin)
#include <TargetConditionals.h>             // To detect OSX or IOS using TARGET_OS_IPHONE or TARGET_OS_IOS macro
#endif

// The following includes <sys/auxv.h> and <asm/hwcap.h> are not available for macOS, iOS.
#if !defined(__APPLE__) // not macOS, iOS
#if defined(SIMD_PPC_ENABLE) || defined(SIMD_PPC64_ENABLE) || defined(SIMD_ARM_ENABLE) || defined(SIMD_ARM64_ENABLE)
#include <unistd.h>
#include <fcntl.h>
#include <sys/auxv.h>
#if defined(SIMD_ARM_ENABLE) || defined(SIMD_ARM64_ENABLE)
#if !defined(__FreeBSD__)
#include <asm/hwcap.h>
#endif
#endif
#endif
#endif

#else
# error Do not know how to detect CPU info
#endif

namespace Simd
{
#ifdef SIMD_SSE41_ENABLE
    namespace Sse41
    {
        bool GetEnable();

        const bool Enable = GetEnable();
    }
#endif

#ifdef SIMD_AVX_ENABLE
    namespace Avx
    {
        bool GetEnable();

        const bool Enable = GetEnable();
    }
#endif

#ifdef SIMD_AVX2_ENABLE
    namespace Avx2
    {
        bool GetEnable();

        const bool Enable = GetEnable();
    }
#endif

#ifdef SIMD_NEON_ENABLE
    namespace Neon
    {
        bool GetEnable();

        const bool Enable = GetEnable();
    }
#endif
}

#define SIMD_BASE_FUNC(func) Simd::Base::func

#ifdef SIMD_SSE41_ENABLE
#define SIMD_SSE41_FUNC(func) Simd::Sse41::Enable ? Simd::Sse41::func : 
#else
#define SIMD_SSE41_FUNC(func) 
#endif

#ifdef SIMD_AVX_ENABLE
#define SIMD_AVX_FUNC(func) Simd::Avx::Enable ? Simd::Avx::func : 
#else
#define SIMD_AVX_FUNC(func)
#endif

#ifdef SIMD_AVX2_ENABLE
#define SIMD_AVX2_FUNC(func) Simd::Avx2::Enable ? Simd::Avx2::func : 
#else
#define SIMD_AVX2_FUNC(func)
#endif

#ifdef SIMD_NEON_ENABLE
#define SIMD_NEON_FUNC(func) Simd::Neon::Enable ? Simd::Neon::func :
#else
#define SIMD_NEON_FUNC(func)
#endif

#define SIMD_FUNC0(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC1(func, EXT1) EXT1(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC2(func, EXT1, EXT2) EXT1(func) EXT2(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC3(func, EXT1, EXT2, EXT3) EXT1(func) EXT2(func) EXT3(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC4(func, EXT1, EXT2, EXT3, EXT4) EXT1(func) EXT2(func) EXT3(func) EXT4(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC5(func, EXT1, EXT2, EXT3, EXT4, EXT5) EXT1(func) EXT2(func) EXT3(func) EXT4(func) EXT5(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC6(func, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6) EXT1(func) EXT2(func) EXT3(func) EXT4(func) EXT5(func) EXT6(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC7(func, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7) EXT1(func) EXT2(func) EXT3(func) EXT4(func) EXT5(func) EXT6(func) EXT7(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC8(func, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7, EXT8) EXT1(func) EXT2(func) EXT3(func) EXT4(func) EXT5(func) EXT6(func) EXT7(func) EXT8(func) SIMD_BASE_FUNC(func)
#define SIMD_FUNC9(func, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7, EXT8, EXT9) EXT1(func) EXT2(func) EXT3(func) EXT4(func) EXT5(func) EXT6(func) EXT7(func) EXT8(func) EXT9(func) SIMD_BASE_FUNC(func)

#endif//__SimdEnable_h__