/* * Copyright (c) 2025, Red Hat, 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 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 8361702 * @summary C2: assert(is_dominator(compute_early_ctrl(limit, limit_ctrl), pre_end)) failed: node pinned on loop exit test? * @requires vm.flavor == "server" * @run main/othervm -XX:-BackgroundCompilation -XX:LoopUnrollLimit=100 -XX:-UseLoopPredicate -XX:-UseProfiledLoopPredicate TestSunkRangeFromPreLoopRCE3 */ /** * @test * @bug 8361702 * @summary C2: assert(is_dominator(compute_early_ctrl(limit, limit_ctrl), pre_end)) failed: node pinned on loop exit test? * @run main TestSunkRangeFromPreLoopRCE3 */ import java.util.Arrays; public class TestSunkRangeFromPreLoopRCE3 { static final int nbIterations = 100; public static void main(String[] args) { for (int i = 0; i < 20_000; i++) { test1(0); test1(0); } } private static float test1(int k) { float v = 0; int j = 0; int[] lengths = new int[2]; test1Helper(lengths); int constantFoldedTo4AfterCCP = 2; for (; constantFoldedTo4AfterCCP < 4; constantFoldedTo4AfterCCP *= 2); int constantFoldedTo0AfterCCPAnd1RoundLoopOpts; for (constantFoldedTo0AfterCCPAnd1RoundLoopOpts = 0; constantFoldedTo0AfterCCPAnd1RoundLoopOpts < 40; constantFoldedTo0AfterCCPAnd1RoundLoopOpts += constantFoldedTo4AfterCCP) { } constantFoldedTo0AfterCCPAnd1RoundLoopOpts -= 40; for (int i = 0; i < nbIterations; i++) { int arrayLength2 = Integer.max(Integer.min(lengths[j * k], 1000), 0); float[] array = new float[arrayLength2]; v += array[(constantFoldedTo0AfterCCPAnd1RoundLoopOpts + 1) * i]; int arrayLength = Integer.max(Integer.min(lengths[k], 1000), 0); v += arrayLength & constantFoldedTo0AfterCCPAnd1RoundLoopOpts; j = 1; } return v; } private static void test1Helper(int[] lengths) { lengths[0] = nbIterations+1; lengths[1] = nbIterations+1; } }