53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
/* { dg-do run } */
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/* { dg-options "-O2 -funswitch-loops" } */
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#include <stdlib.h>
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__attribute__ ((noinline))
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void foo (float **a, float **b, float *c, int n, int m, int l)
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{
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int i,j,k;
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float s;
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for (i=0; i<l; i++)
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for (j=0; j<n; j++)
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for (k=0; k<m; k++)
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c[i] += a[i][k] * b[k][j];
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}
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int main()
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{
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const int N = 32;
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float **ar1, **ar2;
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float *res;
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int i, j;
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ar1 = (float **)malloc (N * sizeof (float*));
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ar2 = (float **)malloc (N * sizeof (float*));
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res = (float *)malloc( N * sizeof (float));
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for (i=0; i<N; i++)
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{
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ar1[i] = (float*)malloc (N * sizeof (float));
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ar2[i] = (float*)malloc (N * sizeof (float));
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}
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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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ar1[i][j] = 2.0f;
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ar2[i][j] = 1.5f;
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}
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res[i] = 0.0f;
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}
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foo (ar1, ar2, res, N, N, N);
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for (i=0; i<N; i++)
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if (res[i] != 3072.0f)
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abort();
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for (i=0; i<N; i++)
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res[i] = 0.0f;
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foo (ar1, ar2, res, N, 0, N);
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for (i=0; i<N; i++)
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if (res[i] != 0.0f)
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abort();
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return 0;
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}
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