test/compiler/8002069/Test8002069.java

/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * questions.
 *
 */

/**
 * @test
 * @bug 8002069
 * @summary Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
 *
 * @run main/othervm -Xmx32m -XX:+IgnoreUnrecognizedVMOptions -Xbatch -XX:CompileCommand=exclude,Test8002069.dummy Test8002069
 */

abstract class O {
  int f;
  public O() { f = 5; }
  abstract void put(int i);
  public int foo(int i) {
    put(i);
    return i;
  }
};

class A extends O {
  int[] a;
  public A(int s) {
    a = new int[s];
  }
  public void put(int i) {
    a[i%a.length] = i;
  }
}

class B extends O {
  int sz;
  int[] a;
  public B(int s) {
    sz = s;
    a = new int[s];
  }
  public void put(int i) {
    a[i%sz] = i;
  }
}

public class Test8002069 {
  public static void main(String args[]) {
    int sum = 0;
    for (int i=0; i<8000; i++) {
      sum += test1(i);
    }
    for (int i=0; i<100000; i++) {
      sum += test2(i);
    }
    System.out.println("PASSED. sum = " + sum);
  }

  private O o;

  private int foo(int i) {
    return o.foo(i);
  }
  static int test1(int i) {
    Test8002069 t = new Test8002069();
    t.o = new A(5);
    return t.foo(i);
  }
  static int test2(int i) {
    Test8002069 t = new Test8002069();
    t.o = new B(5);
    dummy(i);
    return t.foo(i);
  }

  static int dummy(int i) {
    return i*2;
  }
}