Subversion Repositories openrisc_2011-10-31

/* PR tree-optimization/19828 */
/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-lim-details" } */
 
int cst_fun1 (int) __attribute__((__const__));
int cst_fun2 (int) __attribute__((__const__));
int pure_fun1 (int) __attribute__((__pure__));
int pure_fun2 (int) __attribute__((__pure__));
int foo (void);
 
int xxx (void)
{
  int i, k = foo (), x = 0;
 
  for (i = 0; i < 100; i++)
    {
      x += cst_fun1 (k);
      x += pure_fun1 (k);
 
      if (k)
	{
	  x += cst_fun2 (k);
	  x += pure_fun2 (k);
	}
    }
 
  return x;
}
 
/* Calls to cst_fun1 and pure_fun1 may be moved out of the loop.
   Calls to cst_fun2 and pure_fun2 should not be, since calling
   with k = 0 may be invalid.  */
 
/* { dg-final { scan-tree-dump-times "Moving statement" 3 "lim1" } } */
/* { dg-final { cleanup-tree-dump "lim\[1-2\]" } } */