1  /* { dg-do compile { target size32plus } } */
       2  /* The desire is to show we can generate a memset from the outer loop
       3     store.  Both store motion and PRE expose a DSE opportunity for this
       4     zeroing - while desirable this defeats the purpose of this testcase.  */
       5  /* { dg-options "-O2 -fno-tree-loop-im -fno-tree-pre -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
       6  
       7  #define N (1024)
       8  double a[N][N], b[N][N], c[N][N];
       9  
      10  void
      11  foo (void)
      12  {
      13    unsigned i, j, k;
      14  
      15    for (i = 0; i < N; ++i)
      16      for (j = 0; j < N; ++j)
      17        {
      18  	c[i][j] = 0.0;
      19  	for (k = 0; k < N; ++k)
      20  	  c[i][j] += a[i][k] * b[k][j];
      21        }
      22  }
      23  
      24  /* { dg-final { scan-tree-dump "Loop nest . distributed: split to 1 loops and 1 library" "ldist" } } */