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// avx sample code
// ref: https://www.codeproject.com/Articles/874396/Crunching-Numbers-with-AVX-and-AVX
// 
// usage: gcc -mavx -o hello_avx hello_avx.c
#include <immintrin.h>
#include <stdio.h>

int main() {

  /* Initialize the two argument vectors */
  __m256 evens = _mm256_set_ps(2.0, 4.0, 6.0, 8.0, 10.0, 12.0, 14.0, 16.0);
  __m256 odds = _mm256_set_ps(1.0, 3.0, 5.0, 7.0, 9.0, 11.0, 13.0, 15.0);

  /* Compute the difference between the two vectors */
  __m256 result = _mm256_sub_ps(evens, odds);

  /* Display the elements of the result vector */
  float* f = (float*)&result;
  printf("%f %f %f %f %f %f %f %f\n",
    f[0], f[1], f[2], f[3], f[4], f[5], f[6], f[7]);

  return 0;
}