/* * 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 8011706 * @summary loop invariant code motion may move load before store to the same field * * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation * compiler.c1.Test8011706
*/
package compiler.c1;
publicclass Test8011706 { int[] array;
void m(boolean test, int[] array1, int[] array2) { int i = 0; if (test) {
array = array1;
} else {
array = array2;
}
while(true) { int v = array[i];
i++; if (i >= 10) return;
}
}
staticpublicvoid main(String[] args) { int[] new_array = newint[10];
Test8011706 ti = new Test8011706(); boolean failed = false; try { for (int i = 0; i < 10000; i++) {
ti.array = null;
ti.m(true, new_array, new_array);
}
} catch(NullPointerException ex) { thrownew RuntimeException("TEST FAILED", ex);
}
System.out.println("TEST PASSED");
}
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