162 lines
4.8 KiB
Java
162 lines
4.8 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 8323274
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* @summary split if can cause an array load to become dependent on a test other than its range check
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* @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation TestArrayAccessAboveRCAfterSplitIf
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*/
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public class TestArrayAccessAboveRCAfterSplitIf {
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private static volatile int volatileField;
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public static void main(String[] args) {
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int[] array = new int[1000];
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for (int i = 0; i < 20_000; i++) {
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test1(array, array, 0, 2, true);
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inlined1(42, array, array, 0, 2, 10, true);
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inlined1(2, array, array, 0, 2, 10, true);
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inlined1(42, array, array, 0, 2, 10, false);
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inlined1(2, array, array, 0, 2, 10, false);
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test2(array, array, 0, 2, true);
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inlined2(42, array, array, 0, 2, 10, true);
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inlined2(2, array, array, 0, 2, 10, true);
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inlined2(42, array, array, 0, 2, 10, false);
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inlined2(2, array, array, 0, 2, 10, false);
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}
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try {
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test1(array, array, -1, 2, true);
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} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
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}
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try {
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test2(array, array, -1, 2, true);
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} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
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}
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}
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private static int test1(int[] array1, int[] array2, int i, int l, boolean flag) {
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for (int j = 0; j < 10; j++) {
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}
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int k;
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for (k = 1; k < 2; k *= 2) {
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}
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int m;
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for (m = 0; m < 10; m+=k) {
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}
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return inlined1(k, array1, array2, i, l, m, flag);
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}
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private static int inlined1(int k, int[] array1, int[] array2, int i, int l, int m, boolean flag) {
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int v;
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int[] array;
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if (array1 == null) {
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}
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if (l == 10) {
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}
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if (flag) {
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if (k == 2) {
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v = array1[i];
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array = array1;
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if (l == m) {
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}
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} else {
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v = array2[i];
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array = array2;
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}
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v += array[i];
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v += array2[i];
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} else {
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if (k == 2) {
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v = array1[i];
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array = array1;
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if (l == m) {
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}
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} else {
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v = array2[i];
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array = array2;
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}
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v += array[i];
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v += array2[i];
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}
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return v;
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}
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private static int test2(int[] array1, int[] array2, int i, int l, boolean flag) {
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for (int j = 0; j < 10; j++) {
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}
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int k;
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for (k = 1; k < 2; k *= 2) {
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}
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int m;
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for (m = 0; m < 10; m+=k) {
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}
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return inlined2(k, array1, array2, i, l, m, flag);
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}
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private static int inlined2(int k, int[] array1, int[] array2, int i, int l, int m, boolean flag) {
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int v;
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int[] array;
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if (array1 == null) {
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}
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if (l == 10) {
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}
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if (flag) {
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if (k == 2) {
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v = array1[i];
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array = array1;
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if (l == m) {
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}
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} else {
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v = array2[i];
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array = array2;
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}
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if (Integer.compareUnsigned(i, array.length) >= 0) {
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}
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v += array[i];
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v += array2[i];
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} else {
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if (k == 2) {
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v = array1[i];
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array = array1;
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if (l == m) {
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}
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} else {
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v = array2[i];
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array = array2;
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}
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if (Integer.compareUnsigned(i, array.length) >= 0) {
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}
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v += array[i];
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v += array2[i];
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}
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return v;
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}
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}
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