simd.h

#pragma once

#ifdef _MSC_VER
	#include <intrin.h>
	#define bit_SSE2 (1 << 26)
	#define bit_SSE3 (1 << 0)
	#define bit_AVX (1 << 28)
#else
	#include <cpuid.h>
#endif // _MSC_VER

struct vector_features{
	int sse2, sse3, avx;
};
inline struct vector_features detect_vector_features(void){
#ifdef _MSC_VER
	int cpu_info[4];
	__cpuid(cpu_info, 1);
	return {cpu_info[3] & bit_SSE2, cpu_info[2] & bit_SSE3, cpu_info[2] & bit_AVX};
#else
	int eax, ebx, ecx, edx;
	__cpuid (1, eax, ebx, ecx, edx);
	return {edx & bit_SSE2, ecx & bit_SSE3, ecx & bit_AVX};
#endif // _MSC_VER	
}