1 /* 2 * Copyright (c) 2021, Red Hat, Inc. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @bug 8269752 27 * @summary C2: assert(false) failed: Bad graph detected in build_loop_late 28 * 29 * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileOnly=TestMainBodyExecutedOnce TestMainBodyExecutedOnce 30 * 31 */ 32 33 34 public class TestMainBodyExecutedOnce { 35 static int N; 36 static long vMeth_check_sum; 37 main(String[] strArr)38 public static void main(String[] strArr) { 39 TestMainBodyExecutedOnce _instance = new TestMainBodyExecutedOnce(); 40 for (int i = 0; i < 10; i++) { 41 _instance.test(); 42 } 43 } 44 test()45 void test() { 46 vMeth(3); 47 } 48 vMeth(int i2)49 void vMeth(int i2) { 50 double d = 1.74287; 51 int i3 = -36665, i4, iArr[] = new int[N]; 52 short s; 53 long lArr[] = new long[N]; 54 while (++i3 < 132) { 55 if (i2 != 0) { 56 vMeth_check_sum += i3; 57 return; 58 } 59 i4 = 1; 60 while (++i4 < 12) { 61 i2 += i4; 62 } 63 } 64 vMeth_check_sum += i3; 65 } 66 } 67