/* * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
/* * @test * @bug 8011771 * @summary Array bound check elimination's in block motion doesn't always reset its data structures from one step to the other. * * @run main/othervm -XX:-BackgroundCompilation compiler.c1.Test8011771
*/
package compiler.c1;
publicclass Test8011771 {
staticvoid m(int[] a, int[] b, int j) { // Array bound check elimination inserts a predicate before // the loop. We'll have the predicate fail, so the method is // recompiled without optimistic optimizations for (int i = 0; i < 10; i++) {
a[i] = i;
}
// The test itself
a[j] = 0;
a[j+5] = 0;
b[j+4] = 0; // this range check shouldn't be eliminated
}
staticpublicvoid main(String[] args) { int[] arr1 = newint[10], arr2 = newint[10]; // force compilation: for (int i = 0; i < 5000; i++) {
m(arr1, arr2, 0);
}
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