77 lines
1.3 KiB
C
77 lines
1.3 KiB
C
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/* { dg-do run } */
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/* { dg-additional-options "-msse2" { target sse2_runtime } } */
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/* { dg-additional-options "-mavx" { target avx_runtime } } */
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#define N 128
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#define M 16
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#define EPS 0.0000000000000001
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#define SAFELEN 16
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#include <stdlib.h>
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void init(double a[N][N], double b[N][N], int n)
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{
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int i, j, s = -1;
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for (i = 0; i < n; i++)
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{
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for (j = 0; j < n; j++)
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{
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a[i][j] = i * j * s;
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b[i][j] = i + j + s;
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s = -s;
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}
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}
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}
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void work( double a[N][N], double b[N][N], double c[N][N], int n )
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{
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int i, j;
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double tmp;
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#pragma omp for simd collapse(2) private(tmp)
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for (i = 0; i < n; i++)
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{
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for (j = 0; j < n; j++)
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{
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tmp = a[i][j] + b[i][j];
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c[i][j] = tmp;
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}
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}
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}
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void work_ref( double a[N][N], double b[N][N], double c[N][N], int n )
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{
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int i, j;
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double tmp;
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for (i = 0; i < n; i++)
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{
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for (j = 0; j < n; j++)
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{
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tmp = a[i][j] + b[i][j];
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c[i][j] = tmp;
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}
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}
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}
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void check (double a[N][N], double b[N][N])
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{
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int i, j;
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for (i = 0; i < N; i++)
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for (j = 0; j < N; j++)
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if (a[i][j] - b[i][j] > EPS || b[i][j] - a[i][j] > EPS)
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abort ();
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}
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int main ()
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{
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double a[N][N], b[N][N], c[N][N], c_ref[N][N];
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init(a, b, N);
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work(a, b, c, N);
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work_ref(a, b, c_ref, N);
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check(c, c_ref);
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return 0;
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}
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