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/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
/* { dg-require-effective-target ilp32 } */
/* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -fdump-tree-optimized -fdump-tree-aprefetch --param max-unrolled-insns=1000" } */
 
char x[100000];
 
void foo(int n)
{
  int i;
 
  for (i = 0; i < n; i++)
    x[i] = (char) i;
}
 
/* There should be 64 MEMs in the unrolled loop and one more in the copy of the loop
   for the rest of the iterations.  */
 
/* { dg-final { scan-tree-dump-times "MEM" 65 "optimized" } } */
 
/* There should be no i_a = i_b assignments.  */
/* { dg-final { scan-tree-dump-times "i_.*= i_\[0-9\]*;" 0 "aprefetch" } } */
 
/* { dg-final { cleanup-tree-dump "optimized" } } */
/* { dg-final { cleanup-tree-dump "aprefetch" } } */