69 lines
2.4 KiB
Java
69 lines
2.4 KiB
Java
/*
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* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @key stress randomness
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* @bug 8280123
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* @run main/othervm -Xcomp -XX:-TieredCompilation
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* -XX:CompileCommand=compileonly,compiler.c2.TestCMoveInfiniteGVN::test
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* -XX:+UnlockDiagnosticVMOptions -XX:+StressIGVN -XX:StressSeed=43739875
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* compiler.c2.TestCMoveInfiniteGVN
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* @run main/othervm -Xcomp -XX:-TieredCompilation
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* -XX:CompileCommand=compileonly,compiler.c2.TestCMoveInfiniteGVN::test
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* -XX:+UnlockDiagnosticVMOptions -XX:+StressIGVN
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* compiler.c2.TestCMoveInfiniteGVN
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*/
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package compiler.c2;
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public class TestCMoveInfiniteGVN {
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static int test(boolean b, int i) {
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int iArr[] = new int[2];
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double d = Math.max(i, i);
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for (int i1 = 1; i1 < 2; i1++) {
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if (i1 != 0) {
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return (b ? 1 : 0); // CMoveI
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}
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for (int i2 = 1; i2 < 2; i2++) {
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switch (i2) {
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case 1: d -= Math.max(i1, i2); break;
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}
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d -= iArr[i1 - 1];
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}
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}
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return 0;
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}
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static void test() {
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test(true, 234);
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}
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public static void main(String[] strArr) {
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test(); // compilation, then nmethod invalidation during execution
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test(); // trigger crashing recompilation
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}
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}
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