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35f4a7410c
Co-authored-by: Christian Hagedorn <chagedorn@openjdk.org> Reviewed-by: chagedorn, bmaillard
82 lines
2.7 KiB
Java
82 lines
2.7 KiB
Java
/*
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* Copyright (c) 2025 IBM Corporation. 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 8366888
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* @summary C2: incorrect assertion predicate with short running long counted loop
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*
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* @run main/othervm -XX:-BackgroundCompilation TestShortCountedLoopWithLongRCBadAssertPredicate
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* @run main TestShortCountedLoopWithLongRCBadAssertPredicate
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*/
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import java.util.Objects;
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public class TestShortCountedLoopWithLongRCBadAssertPredicate {
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public static void main(String[] args) {
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float[] floatArray = new float[1000];
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for (int i = 0; i < 20_000; i++) {
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test1(floatArray, 10000);
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test2(floatArray, 10000);
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test3(100, 1100, floatArray, 10000);
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test4(999, 0, floatArray, 10000);
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}
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}
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private static float test1(float[] floatArray, long longRange) {
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float v = 0;
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for (int i = 100; i < 1100; i++) {
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v += floatArray[i - 100];
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Objects.checkIndex(i, longRange);
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}
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return v;
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}
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private static float test2(float[] floatArray, long longRange) {
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float v = 0;
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for (int i = 999; i >= 0; i--) {
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v += floatArray[i];
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Objects.checkIndex(i, longRange);
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}
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return v;
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}
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private static float test3(int start, int stop, float[] floatArray, long longRange) {
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float v = 0;
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for (int i = start; i < stop; i++) {
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v += floatArray[i - 100];
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Objects.checkIndex(i, longRange);
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}
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return v;
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}
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private static float test4(int start, int stop, float[] floatArray, long longRange) {
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float v = 0;
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for (int i = start; i >= stop; i--) {
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v += floatArray[i];
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Objects.checkIndex(i, longRange);
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}
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return v;
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}
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}
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