1  /* { dg-do compile { target { i?86-*-* x86_64-*-* } } } */
       2  /* { dg-options "-O2 -fprefetch-loop-arrays -march=amdfam10 -fdump-tree-optimized -fdump-tree-aprefetch --param max-unrolled-insns=1000" } */
       3  
       4  char x[100000];
       5  
       6  void foo(int n)
       7  {
       8    int i;
       9  
      10    for (i = 0; i < n; i++)
      11      x[i] = (char) i;
      12  }
      13  
      14  /* There should be 64 MEMs in the unrolled loop and one more in the copy of the loop
      15     for the rest of the iterations.  */
      16  
      17  /* { dg-final { scan-tree-dump-times "MEM" 65 "optimized" } } */
      18  
      19  /* There should be no i_a = i_b assignments.  */
      20  /* { dg-final { scan-tree-dump-times "i_.*= i_\[0-9\]*;" 0 "aprefetch" } } */
      21