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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 public class Main {
     18   public static void main(String[] args) {
     19     System.out.println(foo());
     20   }
     21 
     22   public static int foo() {
     23     Main m = new Main();
     24     int a = m.field;
     25     if (a == 0) {
     26       m.field = 42;
     27       if (m.test) {
     28         a = 3;
     29       }
     30     }
     31     // The compiler used to GVN this field get with the one line 24,
     32     // even though the field is updated in the if.
     33     return m.field;
     34   }
     35 
     36   public int field;
     37   public boolean test = true;
     38 }
     39