--- /dev/null 2015-06-17 17:39:34.064603000 +0200 +++ new/test/compiler/arraycopy/TestEliminatedArrayLoopPredicateCopyDeopt.java 2015-09-04 09:23:25.206530264 +0200 @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2015, 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 + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 8134974 + * @summary Cannot pin eliminated arraycopy loads for deopt state in uncommon trap path if it is a loop predicate unc + * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestEliminatedArrayLoopPredicateCopyDeopt + * + */ + +public class TestEliminatedArrayLoopPredicateCopyDeopt { + + static boolean test(int[] array_src) { + int[] array_dst = new int[10]; + System.arraycopy(array_src, 0, array_dst, 0, 10); + + for (int i = 0; i < 100; i++) { + array_src[i] = i; + } + if (array_dst[0] == 0) { + return true; + } + return false; + } + + static public void main(String[] args) { + int[] array_src = new int[100]; + for (int i = 0; i < 20000; i++) { + test(array_src); + } + } +}