content: /*
   * Copyright (C) 2015 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  final class Final {
    public String toString() {
      return "final";
    }
  }
  
  public class Main {
    /// CHECK-START: Final Main.testKeepCheckCast(java.lang.Object, boolean) builder (after)
    /// CHECK:    <<Phi:l\d+>>     Phi klass:java.lang.Object
    /// CHECK:    <<Class:l\d+>>   LoadClass
    /// CHECK:                     CheckCast [<<Phi>>,<<Class>>]
    /// CHECK:    <<Ret:l\d+>>     BoundType [<<Phi>>] klass:Final
    /// CHECK:                     Return [<<Ret>>]
  
    /// CHECK-START: Final Main.testKeepCheckCast(java.lang.Object, boolean) instruction_simplifier (after)
    /// CHECK:    <<Phi:l\d+>>     Phi
    /// CHECK:    <<Class:l\d+>>   LoadClass
    /// CHECK:                     CheckCast [<<Phi>>,<<Class>>]
    /// CHECK:    <<Ret:l\d+>>     BoundType [<<Phi>>]
    /// CHECK:                     Return [<<Ret>>]
    public static Final testKeepCheckCast(Object o, boolean cond) {
      Object x = new Final();
      while (cond) {
        x = o;
        cond = false;
      }
      return (Final) x;
    }
  
    /// CHECK-START: void Main.testKeepInstanceOf(java.lang.Object, boolean) builder (after)
    /// CHECK:    <<Phi:l\d+>>     Phi klass:java.lang.Object
    /// CHECK:    <<Class:l\d+>>   LoadClass
    /// CHECK:                     InstanceOf [<<Phi>>,<<Class>>]
  
    /// CHECK-START: void Main.testKeepInstanceOf(java.lang.Object, boolean) dead_code_elimination (after)
    /// CHECK:    <<Phi:l\d+>>     Phi
    /// CHECK:    <<Class:l\d+>>   LoadClass
    /// CHECK:                     InstanceOf [<<Phi>>,<<Class>>]
    public static void testKeepInstanceOf(Object o, boolean cond) {
      Object x = new Final();
      while (cond) {
        x = o;
        cond = false;
      }
      if (x instanceof Final) {
        System.out.println("instanceof succeed");
      } else {
        System.out.println("instanceof failed");
      }
    }
  
    /// CHECK-START: java.lang.String Main.testNoInline(java.lang.Object, boolean) builder (after)
    /// CHECK:    <<Phi:l\d+>>     Phi klass:java.lang.Object
    /// CHECK:    <<NC:l\d+>>      NullCheck [<<Phi>>]
    /// CHECK:    <<Ret:l\d+>>     InvokeVirtual [<<NC>>] method_name:java.lang.Object.toString
    /// CHECK:                     Return [<<Ret>>]
  
    /// CHECK-START: java.lang.String Main.testNoInline(java.lang.Object, boolean) inliner (after)
    /// CHECK:    <<Phi:l\d+>>     Phi
    /// CHECK:    <<NC:l\d+>>      NullCheck [<<Phi>>]
    /// CHECK:    <<Ret:l\d+>>     InvokeVirtual [<<NC>>] method_name:java.lang.Object.toString
    /// CHECK:                     Return [<<Ret>>]
    public static String testNoInline(Object o, boolean cond) {
      Object x = new Final();
      while (cond) {
        x = o;
        cond = false;
      }
      return x.toString();
    }
  
    public static void main(String[] args) {
      try {
        testKeepCheckCast(new Object(), true);
        throw new Error("Expected check cast exception");
      } catch (ClassCastException e) {
        // expected
      }
  
      testKeepInstanceOf(new Object(), true);
  
      if ("final".equals(testNoInline(new Object(), true))) {
        throw new Error("Bad inlining");
      }
    }
  }
  