Ejemplos de chrec_fold_plus_poly_poly en C++ (Cpp)

Ejemplo n.º 1

Archivo: tree-chrec.c Proyecto: hemantjain95/gcc

static tree
chrec_fold_plus_1 (enum tree_code code, tree type,
		   tree op0, tree op1)
{
  if (automatically_generated_chrec_p (op0)
      || automatically_generated_chrec_p (op1))
    return chrec_fold_automatically_generated_operands (op0, op1);

  switch (TREE_CODE (op0))
    {
    case POLYNOMIAL_CHREC:
      gcc_checking_assert
	(!chrec_contains_symbols_defined_in_loop (op0, CHREC_VARIABLE (op0)));
      switch (TREE_CODE (op1))
	{
	case POLYNOMIAL_CHREC:
	  gcc_checking_assert
	    (!chrec_contains_symbols_defined_in_loop (op1,
						      CHREC_VARIABLE (op1)));
	  return chrec_fold_plus_poly_poly (code, type, op0, op1);

	CASE_CONVERT:
	  if (tree_contains_chrecs (op1, NULL))
	    return chrec_dont_know;

	default:
	  if (code == PLUS_EXPR || code == POINTER_PLUS_EXPR)
	    return build_polynomial_chrec
	      (CHREC_VARIABLE (op0),
	       chrec_fold_plus (type, CHREC_LEFT (op0), op1),
	       CHREC_RIGHT (op0));
	  else
	    return build_polynomial_chrec
	      (CHREC_VARIABLE (op0),
	       chrec_fold_minus (type, CHREC_LEFT (op0), op1),
	       CHREC_RIGHT (op0));
	}

    CASE_CONVERT:
      if (tree_contains_chrecs (op0, NULL))
	return chrec_dont_know;

    default:
      switch (TREE_CODE (op1))
	{
	case POLYNOMIAL_CHREC:
	  gcc_checking_assert
	    (!chrec_contains_symbols_defined_in_loop (op1,
						      CHREC_VARIABLE (op1)));
	  if (code == PLUS_EXPR || code == POINTER_PLUS_EXPR)
	    return build_polynomial_chrec
	      (CHREC_VARIABLE (op1),
	       chrec_fold_plus (type, op0, CHREC_LEFT (op1)),
	       CHREC_RIGHT (op1));
	  else
	    return build_polynomial_chrec
	      (CHREC_VARIABLE (op1),
	       chrec_fold_minus (type, op0, CHREC_LEFT (op1)),
	       chrec_fold_multiply (type, CHREC_RIGHT (op1),
				    SCALAR_FLOAT_TYPE_P (type)
				    ? build_real (type, dconstm1)
				    : build_int_cst_type (type, -1)));

	CASE_CONVERT:
	  if (tree_contains_chrecs (op1, NULL))
	    return chrec_dont_know;

	default:
	  {
	    int size = 0;
	    if ((tree_contains_chrecs (op0, &size)
		 || tree_contains_chrecs (op1, &size))
		&& size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
	      return build2 (code, type, op0, op1);
	    else if (size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
	      {
		if (code == POINTER_PLUS_EXPR)
		  return fold_build_pointer_plus (fold_convert (type, op0),
						  op1);
		else
		  return fold_build2 (code, type,
				      fold_convert (type, op0),
				      fold_convert (type, op1));
	      }
	    else
	      return chrec_dont_know;
	  }
	}
    }
}

Ejemplo n.º 2

Archivo: tree-chrec.c Proyecto: DJHartley/iphone-dev

static tree
chrec_fold_plus_1 (enum tree_code code, 
		   tree type, 
		   tree op0,
		   tree op1)
{
  if (automatically_generated_chrec_p (op0)
      || automatically_generated_chrec_p (op1))
    return chrec_fold_automatically_generated_operands (op0, op1);
  
  switch (TREE_CODE (op0))
    {
    case POLYNOMIAL_CHREC:
      switch (TREE_CODE (op1))
	{
	case POLYNOMIAL_CHREC:
	  return chrec_fold_plus_poly_poly (code, type, op0, op1);

	default:
	  if (code == PLUS_EXPR)
	    return build_polynomial_chrec 
	      (CHREC_VARIABLE (op0), 
	       chrec_fold_plus (type, CHREC_LEFT (op0), op1),
	       CHREC_RIGHT (op0));
	  else
	    return build_polynomial_chrec 
	      (CHREC_VARIABLE (op0), 
	       chrec_fold_minus (type, CHREC_LEFT (op0), op1),
	       CHREC_RIGHT (op0));
	}

    default:
      switch (TREE_CODE (op1))
	{
	case POLYNOMIAL_CHREC:
	  if (code == PLUS_EXPR)
	    return build_polynomial_chrec 
	      (CHREC_VARIABLE (op1), 
	       chrec_fold_plus (type, op0, CHREC_LEFT (op1)),
	       CHREC_RIGHT (op1));
	  else
	    return build_polynomial_chrec 
	      (CHREC_VARIABLE (op1), 
	       chrec_fold_minus (type, op0, CHREC_LEFT (op1)),
	       chrec_fold_multiply (type, CHREC_RIGHT (op1),
				    build_int_cst_type (type, -1)));

	default:
	  {
	    int size = 0;
	    if ((tree_contains_chrecs (op0, &size)
		 || tree_contains_chrecs (op1, &size))
		&& size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
	      return build2 (code, type, op0, op1);
	    else if (size < PARAM_VALUE (PARAM_SCEV_MAX_EXPR_SIZE))
	      return fold (build2 (code, type, op0, op1));
	    else
	      return chrec_dont_know;
	  }
	}
    }
}