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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [predcom-3.c] - Rev 826

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/* { dg-do compile } */
/* { dg-options "-O2 -fpredictive-commoning -fdump-tree-pcom-details" } */
 
int a[1000], b[1000];
 
void test(void)
{
  int i;
 
  for (i = 1; i < 999; i++)
    b[i] = (a[i + 1] + a[i] + a[i - 1]) / 3;
}
 
/* Verify that we used 3 temporary variables for the loop.  */
/* { dg-final { scan-tree-dump-times "Unrolling 3 times." 1 "pcom"} } */
/* { dg-final { cleanup-tree-dump "pcom" } } */
 

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