Subversion Repositories openrisc_2011-10-31

/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
 
int foo (int n)
{
  while (n >= 45)
    n -= 45;
 
  return n;
}
 
int bar (int n)
{
  while (n >= 64)
    n -= 64;
 
  return n;
}
 
int bla (int n)
{
  int i = 0;
 
  while (n >= 45)
    {
      i++;
      n -= 45;
    }
 
  return i;
}
 
int baz (int n)
{
  int i = 0;
 
  while (n >= 64)
    {
      i++;
      n -= 64;
    }
 
  return i;
}
 
/* The loops computing division/modulo by 64 should be eliminated */
/* { dg-final { scan-tree-dump-times "if" 6 "optimized" } } */
 
/* There should be no division/modulo in the final dump (division and modulo
   by 64 are done using bit operations).  */
/* { dg-final { scan-tree-dump-times "/" 0 "optimized" } } */
/* { dg-final { scan-tree-dump-times "%" 0 "optimized" } } */
 
/* { dg-final { cleanup-tree-dump "optimized" } } */