Esempi in C++ (Cpp) per chrec_component_in_loop_num

Esempio n. 1

File: tree-chrec.c Progetto: hemantjain95/gcc

static tree
chrec_component_in_loop_num (tree chrec,
			     unsigned loop_num,
			     bool right)
{
  tree component;
  struct loop *loop = get_loop (cfun, loop_num), *chloop;

  if (automatically_generated_chrec_p (chrec))
    return chrec;

  switch (TREE_CODE (chrec))
    {
    case POLYNOMIAL_CHREC:
      chloop = get_chrec_loop (chrec);

      if (chloop == loop)
	{
	  if (right)
	    component = CHREC_RIGHT (chrec);
	  else
	    component = CHREC_LEFT (chrec);

	  if (TREE_CODE (CHREC_LEFT (chrec)) != POLYNOMIAL_CHREC
	      || CHREC_VARIABLE (CHREC_LEFT (chrec)) != CHREC_VARIABLE (chrec))
	    return component;

	  else
	    return build_polynomial_chrec
	      (loop_num,
	       chrec_component_in_loop_num (CHREC_LEFT (chrec),
					    loop_num,
					    right),
	       component);
	}

      else if (flow_loop_nested_p (chloop, loop))
	/* There is no evolution part in this loop.  */
	return NULL_TREE;

      else
	{
	  gcc_assert (flow_loop_nested_p (loop, chloop));
	  return chrec_component_in_loop_num (CHREC_LEFT (chrec),
					      loop_num,
					      right);
	}

     default:
      if (right)
	return NULL_TREE;
      else
	return chrec;
    }
}

Esempio n. 2

static tree 
chrec_component_in_loop_num (tree chrec, 
			     unsigned loop_num,
			     bool right)
{
  tree component;

  if (automatically_generated_chrec_p (chrec))
    return chrec;
  
  switch (TREE_CODE (chrec))
    {
    case POLYNOMIAL_CHREC:
      if (CHREC_VARIABLE (chrec) == loop_num)
	{
	  if (right)
	    component = CHREC_RIGHT (chrec);
	  else
	    component = CHREC_LEFT (chrec);

	  if (TREE_CODE (CHREC_LEFT (chrec)) != POLYNOMIAL_CHREC
	      || CHREC_VARIABLE (CHREC_LEFT (chrec)) != CHREC_VARIABLE (chrec))
	    return component;
	  
	  else
	    return build_polynomial_chrec
	      (loop_num, 
	       chrec_component_in_loop_num (CHREC_LEFT (chrec), 
					    loop_num, 
					    right), 
	       component);
	}
      
      else if (CHREC_VARIABLE (chrec) < loop_num)
	/* There is no evolution part in this loop.  */
	return NULL_TREE;
      
      else
	return chrec_component_in_loop_num (CHREC_LEFT (chrec), 
					    loop_num, 
					    right);
      
     default:
      if (right)
	return NULL_TREE;
      else
	return chrec;
    }
}

Esempio n. 3

File: tree-chrec.c Progetto: hemantjain95/gcc

tree
initial_condition_in_loop_num (tree chrec,
			       unsigned loop_num)
{
  return chrec_component_in_loop_num (chrec, loop_num, false);
}

Esempio n. 4

File: tree-chrec.c Progetto: hemantjain95/gcc

tree
evolution_part_in_loop_num (tree chrec,
			    unsigned loop_num)
{
  return chrec_component_in_loop_num (chrec, loop_num, true);
}