1  /* { dg-do run } */
       2  /* { dg-options "-O2 -funswitch-loops" } */
       3  
       4  #include <stdlib.h>
       5  __attribute__ ((noinline))
       6  void foo (float **a, float **b, float *c, int n, int m, int l)
       7  {
       8    int i,j,k;
       9    float s;
      10    for (i=0; i<l; i++)
      11      for (j=0; j<n; j++)
      12        for (k=0; k<m; k++)
      13  	c[i] += a[i][k] * b[k][j];
      14  }
      15  
      16  int main()
      17  {
      18    const int N = 32;
      19    float **ar1, **ar2;
      20    float *res;
      21    int i, j;
      22    ar1 = (float **)malloc (N * sizeof (float*));
      23    ar2 = (float **)malloc (N * sizeof (float*));
      24    res = (float *)malloc( N * sizeof (float));
      25    for (i=0; i<N; i++)
      26      {
      27        ar1[i] = (float*)malloc (N * sizeof (float));
      28        ar2[i] = (float*)malloc (N * sizeof (float));
      29      }
      30    for (i=0; i<N; i++)
      31      {
      32        for (j=0; j<N; j++)
      33  	{
      34  	  ar1[i][j] = 2.0f;
      35  	  ar2[i][j] = 1.5f;
      36  	}
      37        res[i] = 0.0f;
      38      }
      39    foo (ar1, ar2, res, N, N, N);
      40    for (i=0; i<N; i++)
      41      if (res[i] != 3072.0f)
      42        abort();
      43    for (i=0; i<N; i++)
      44      res[i] = 0.0f;
      45    foo (ar1, ar2, res, N, 0, N);
      46    for (i=0; i<N; i++)
      47      if (res[i] != 0.0f)
      48        abort();
      49   
      50    return 0;
      51  }