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vectorclass.h
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vectorclass.h
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/**************************** vectorclass.h ********************************
* Author: Agner Fog
* Date created: 2012-05-30
* Last modified: 2022-07-20
* Version: 2.02.00
* Project: vector class library
* Home: https://github.com/vectorclass
* Description:
* Header file defining vector classes as interface to intrinsic functions
* in x86 and x86-64 microprocessors with SSE2 and later instruction sets.
*
* Instructions:
* Use Gnu, Clang, Microsoft, or Intel C++ compiler. Compile for the desired
* instruction set, which must be at least SSE2. Specify the supported
* instruction set by a command line define, e.g. __SSE4_1__ if the
* compiler does not automatically do so.
* For detailed instructions, see vcl_manual.pdf
*
* Each vector object is represented internally in the CPU as a vector
* register with 128, 256 or 512 bits.
*
* This header file includes the appropriate header files depending on the
* selected instruction set.
*
* (c) Copyright 2012-2022 Agner Fog.
* Apache License version 2.0 or later.
******************************************************************************/
#ifndef VECTORCLASS_H
#define VECTORCLASS_H 20200
// Maximum vector size, bits. Allowed values are 128, 256, 512
#ifndef MAX_VECTOR_SIZE
#define MAX_VECTOR_SIZE 512
#endif
// Determine instruction set, and define platform-dependent functions
#include "instrset.h" // Select supported instruction set
#if INSTRSET < 2 // instruction set SSE2 is the minimum
#error Please compile for the SSE2 instruction set or higher
#else
// Select appropriate .h files depending on instruction set
#include "vectori128.h" // 128-bit integer vectors
#include "vectorf128.h" // 128-bit floating point vectors
#if MAX_VECTOR_SIZE >= 256
#if INSTRSET >= 8
#include "vectori256.h" // 256-bit integer vectors, requires AVX2 instruction set
#else
#include "vectori256e.h" // 256-bit integer vectors, emulated
#endif // INSTRSET >= 8
#if INSTRSET >= 7
#include "vectorf256.h" // 256-bit floating point vectors, requires AVX instruction set
#else
#include "vectorf256e.h" // 256-bit floating point vectors, emulated
#endif // INSTRSET >= 7
#endif // MAX_VECTOR_SIZE >= 256
#if MAX_VECTOR_SIZE >= 512
#if INSTRSET >= 9
#include "vectori512.h" // 512-bit vectors of 32 and 64 bit integers, requires AVX512F instruction set
#include "vectorf512.h" // 512-bit floating point vectors, requires AVX512F instruction set
#else
#include "vectori512e.h" // 512-bit integer vectors, emulated
#include "vectorf512e.h" // 512-bit floating point vectors, emulated
#endif // INSTRSET >= 9
#if INSTRSET >= 10
#include "vectori512s.h" // 512-bit vectors of 8 and 16 bit integers, requires AVX512BW instruction set
#else
#include "vectori512se.h" // 512-bit vectors of 8 and 16 bit integers, emulated
#endif
#endif // MAX_VECTOR_SIZE >= 512
#include "vector_convert.h" // conversion between different vector sizes, and common templates
#endif // INSTRSET >= 2
#else // VECTORCLASS_H
#if VECTORCLASS_H < 20000
#error Mixed versions of vector class library
#endif
#endif // VECTORCLASS_H