// Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package com.android.tools.r8.debuginfo;

public class LocalSwapTest {

  public static int foo(int x, int y) {
    int sum = x + y;
    {
      int t = x;
      x = y;
      y = t;
    }
    return sum + x + y;
  }

  public static void main(String[] args) {
    System.out.print(foo(1, 2));
  }
}
