simd_math_avx512f.h
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	#ifndef SIMD_MATH
	#define SIMD_MATH_
	//
	#include <immintrin.h>
	//
	//
	//

	#ifdef __INTEL_COMPILER
	//
	//#warning "simd_math AVX512F detected"
	inline __m512d operator + (__m512d a, __m512d b) {return _mm512_add_pd(a, b);}
	inline __m512d operator - (__m512d a, __m512d b) {return _mm512_sub_pd(a, b);}
	inline __m512d operator * (__m512d a, __m512d b) {return _mm512_mul_pd(a, b);}
	inline __m512d operator / (__m512d a, __m512d b) {return _mm512_div_pd(a, b);}
	#endif

	#define __INV RCP_2NR_AVX512
	//#define __INV _mm512_rcp28_pd
	//#define __INV _mm512_rcp14_pd
	#define __SQRT _mm512_sqrt_pd
	//
	//
	//
	inline __m512d RCP_2NR_AVX512(const __m512d d)
	{

	__m512d x0;
	x0 = _mm512_div_pd(_mm512_set1_pd(1.), d);
	return x0;
	x0 = _mm512_rcp28_pd (d);
	//
	x0 = x0 + x0 - dx0x0;
	x0 = x0 + x0 - dx0x0;
	//
	return x0;
	}
	//
	//
	//
	#endif