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- /* { dg-do run } */
- /* { dg-additional-options "-msse2" { target sse2_runtime } } */
- /* { dg-additional-options "-mavx" { target avx_runtime } } */
- #define N 100
- #define OFF 32
- #define EPS 0.0000000000000001
- #include <stdlib.h>
- void init(double *a, double *a_ref, double *b, double *c, int n, int ioff)
- {
- int i;
- for ( i = 0; i < n; i++ )
- {
- a[i] = i*i;
- a_ref[i] = a[i];
- b[i] = i+i;
- }
- int s = -1;
- for ( i = 0; i < n+ioff; i++ )
- {
- c[i] = s*3;
- s = -s;
- }
- }
- void star( double *a, double *b, double *c, int n, int *ioff )
- {
- int i;
- #pragma omp simd
- for ( i = 0; i < n; i++ )
- a[i] *= b[i] * c[i+ *ioff];
- }
- void star_ref( double *a, double *b, double *c, int n, int *ioff )
- {
- int i;
- for ( i = 0; i < n; i++ )
- a[i] *= b[i] * c[i+ *ioff];
- }
- void check (double *a, double *b)
- {
- int i;
- for (i = 0; i < N; i++)
- if (a[i] - b[i] > EPS || b[i] - a[i] > EPS)
- abort ();
- }
- int main ()
- {
- double a[N], a_ref[N], b[N], c[N+OFF];
- int ioff = OFF;
- init(a, a_ref, b, c, N, ioff);
- star(a, b, c, N, &ioff);
- star_ref(a_ref, b, c, N, &ioff);
- check(a, a_ref);
- return 0;
- }
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