65 lines
2.3 KiB
Java
65 lines
2.3 KiB
Java
/*
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* Copyright (c) 2024, Red Hat, Inc. 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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* @bug 8328822
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* @summary C2: "negative trip count?" assert failure in profile predicate code
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* @run main/othervm -XX:-BackgroundCompilation TestCountedLoopMinJintStride
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*/
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import java.util.Objects;
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public class TestCountedLoopMinJintStride {
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public static void main(String[] args) {
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for (int i = 0; i < 20_000; i++) {
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test1(Integer.MAX_VALUE-1, Integer.MAX_VALUE, 0);
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testHelper1(100, -1, Integer.MAX_VALUE, 0);
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test2(Integer.MAX_VALUE-1, Integer.MAX_VALUE, 0);
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testHelper2(100, -1, Integer.MAX_VALUE, 0);
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}
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}
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private static void test1(int stop, int range, int start) {
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testHelper1(stop, Integer.MIN_VALUE, range, start);
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}
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private static void testHelper1(int stop, int stride, int range, int start) {
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for (int i = stop; i >= start; i += stride) {
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Objects.checkIndex(i, range);
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}
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}
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private static void test2(int stop, int range, int start) {
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testHelper1(stop, Integer.MIN_VALUE, range, start);
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}
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private static void testHelper2(int stop, int stride, int range, int start) {
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for (int i = stop; i >= start; i += stride) {
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if (i < 0 || i >= range) {
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throw new RuntimeException("out of bounds");
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}
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}
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}
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}
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