--- /dev/null Wed Oct 7 09:47:32 2009 +++ new/test/compiler/6885584/Test6885584.java Wed Oct 7 09:47:32 2009 @@ -0,0 +1,59 @@ +/* + * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +/** + * @test + * @bug 6885584 + * @summary A particular class structure causes large allocation spike for jit + * + * @run main/othervm -Xbatch Test6885584 + */ + + + +public class Test6885584 { + static private int i1; + static private int i2; + static private int i3; + + static int limit = Integer.MAX_VALUE - 8; + + public static void main(String args[]) { + // Run long enough to trigger an OSR + for(int j = 200000; j != 0; j--) { + } + + // This must reference a field + i1 = i2; + + // The resource leak is roughly proportional to this initial value + for(int k = Integer.MAX_VALUE - 1; k != 0; k--) { + // Make sure the body does some work + if(i2 > i3)i1 = k; + if (k <= limit) break; + } + } + +} +