CpuId.h 2.7 KB
Newer Older
L
liaogang 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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. */

#pragma once

#include <iostream>
#include "DisableCopy.h"

namespace paddle {

class SIMDFlags final {
public:
    DISABLE_COPY(SIMDFlags);

    SIMDFlags();

    static SIMDFlags* instance();

L
liaogang 已提交
27 28 29 30 31 32 33 34 35 36 37
    inline bool isSSE()   const { return simd_flags_ & SIMD_SSE;   }
    inline bool isSSE2()  const { return simd_flags_ & SIMD_SSE2;  }
    inline bool isSSE3()  const { return simd_flags_ & SIMD_SSE3;  }
    inline bool isSSSE3() const { return simd_flags_ & SIMD_SSSE3; }
    inline bool isSSE41() const { return simd_flags_ & SIMD_SSE41; }
    inline bool isSSE42() const { return simd_flags_ & SIMD_SSE42; }
    inline bool isFMA3()  const { return simd_flags_ & SIMD_FMA3;  }
    inline bool isFMA4()  const { return simd_flags_ & SIMD_FMA4;  }
    inline bool isAVX()   const { return simd_flags_ & SIMD_AVX;   }
    inline bool isAVX2()  const { return simd_flags_ & SIMD_AVX2;  }
    inline bool isAVX512()const { return simd_flags_ & SIMD_AVX512;}
L
liaogang 已提交
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

private:
    enum simd_t {
        SIMD_NONE     = 0,        ///< None
        SIMD_SSE      = 1 << 0,   ///< SSE
        SIMD_SSE2     = 1 << 1,   ///< SSE 2
        SIMD_SSE3     = 1 << 2,   ///< SSE 3
        SIMD_SSSE3    = 1 << 3,   ///< SSSE 3
        SIMD_SSE41    = 1 << 4,   ///< SSE 4.1
        SIMD_SSE42    = 1 << 5,   ///< SSE 4.2
        SIMD_FMA3     = 1 << 6,   ///< FMA 3
        SIMD_FMA4     = 1 << 7,   ///< FMA 4
        SIMD_AVX      = 1 << 8,   ///< AVX
        SIMD_AVX2     = 1 << 9,   ///< AVX 2
        SIMD_AVX512   = 1 << 10,  ///< AVX 512
    };

    /// simd flags
    int simd_flags_ = SIMD_NONE;
};

#define HAS_SSE      SIMDFlags::instance()->isSSE()
#define HAS_SSE2     SIMDFlags::instance()->isSSE2()
#define HAS_SSE3     SIMDFlags::instance()->isSSE3()
#define HAS_SSSE3    SIMDFlags::instance()->isSSSE3()
#define HAS_SSE41    SIMDFlags::instance()->isSSE41()
L
liaogang 已提交
64
#define HAS_SSE42    SIMDFlags::instance()->isSSE42()
L
liaogang 已提交
65 66 67 68 69 70 71
#define HAS_FMA3     SIMDFlags::instance()->isFMA3()
#define HAS_FMA4     SIMDFlags::instance()->isFMA4()
#define HAS_AVX      SIMDFlags::instance()->isAVX()
#define HAS_AVX2     SIMDFlags::instance()->isAVX2()
#define HAS_AVX512   SIMDFlags::instance()->isAVX512()

}   // namespace paddle