| /* |
| * Copyright (c) 2023, 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 8308103 |
| * @summary Massive (up to ~30x) increase in C2 compilation time since JDK 17 |
| * @run main/othervm -Xcomp -XX:CompileOnly=TestSinkingNodesCausesLongCompilation::mainTest -XX:+UnlockDiagnosticVMOptions |
| * -XX:RepeatCompilation=30 TestSinkingNodesCausesLongCompilation |
| */ |
| |
| public class TestSinkingNodesCausesLongCompilation { |
| public static final int N = 400; |
| public static int iFld=41489; |
| |
| public void mainTest(String[] strArr1) { |
| int i9=-13, i10=-248, i11=-4, i13=33, i15=-171, i18=-58, iArr2[]=new int[N]; |
| |
| for (i9 = 7; i9 < 256; i9++) { |
| i11 = 1; |
| do { |
| } while (++i11 < 101); |
| } |
| for (int i14 : iArr2) { |
| for (i15 = 63; 0 < i15; i15 -= 2) { |
| i10 *= i13; |
| i10 >>= i14; |
| } |
| for (i18 = 2; 63 > i18; i18++) { |
| i10 = iFld; |
| iArr2[i18] |= i11; |
| } |
| } |
| System.out.println("i9 = " + i9); |
| } |
| |
| public static void main(String[] strArr) { |
| TestSinkingNodesCausesLongCompilation _instance = new TestSinkingNodesCausesLongCompilation(); |
| for (int i = 0; i < 10; i++) { |
| _instance.mainTest(strArr); |
| } |
| } |
| } |
