/* * Copyright (c) 2021, 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 8256934 * @summary Sinking of nodes in partial peeling creates too many clones resulting in a live node limit exceeded assertion failure. * @requires vm.compiler2.enabled * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileCommand=compileonly,compiler.loopopts.TestPartialPeelingSinkNodes::test * compiler.loopopts.TestPartialPeelingSinkNodes */ package compiler.loopopts; public class TestPartialPeelingSinkNodes { static int i5 = 168, iFld = 2, x, y; static boolean b = false, b2 = false; public static void main(String[] strArr) { test(); } // The algorithm in partial peeling creates ~90000 nodes for this method which triggers the assertion failure. public static void test() { for (int i = 0; i < 2480; i++) { int i2 = -37052, i3 = 39651, i4 = -37052; int i5 = 168, i6 = -133, i7 = 1, i8 = -10; double d = -20.82293; float fArr[] = new float[400]; for (int j = 0; j < 400; j++) { fArr[j] = (j % 2 == 0) ? 0.300F + j : 0.300F - j; } while (--i5 > 0) { i6 = 1; do { i4 += (((i6 * i2) + i3) - i3); i2 += i4; } while (++i6 < 9); i3 -= i4; for (i7 = 1; i7 < 18; i7++) { i4 = i5; d -= i4; i2 -= i8; i2 = i8; } } } } }