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8290781: Segfault at PhaseIdealLoop::clone_loop_handle_data_uses
Reviewed-by: chagedorn, thartmann
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test/hotspot/jtreg/compiler/loopstripmining/TestLSMBadControlOverride.java
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/* | ||
* Copyright (c) 2022, Red Hat, Inc. 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. | ||
*/ | ||
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/* | ||
* @test | ||
* @bug 8290781 | ||
* @summary Segfault at PhaseIdealLoop::clone_loop_handle_data_uses | ||
* @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation TestLSMBadControlOverride | ||
*/ | ||
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public class TestLSMBadControlOverride { | ||
private static volatile int barrier; | ||
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public static void main(String[] args) { | ||
int[] array = new int[100]; | ||
int[] small = new int[10]; | ||
for (int i = 0; i < 20_000; i++) { | ||
test(array, array, true, true); | ||
test(array, array, true, false); | ||
test(array, array, false, false); | ||
try { | ||
test(small, array,true, true); | ||
} catch (ArrayIndexOutOfBoundsException aieoobe) { | ||
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} | ||
} | ||
} | ||
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private static int test(int[] array, int[] array2, boolean flag1, boolean flag2) { | ||
int i; | ||
int v = 0; | ||
int v1 = 0; | ||
for (i = 0; i < 100; i++) { | ||
v1 = array[i]; | ||
} | ||
v += v1; | ||
if (flag1) { | ||
if (flag2) { | ||
barrier = 42; | ||
} | ||
} | ||
for (int j = 0; j < 100; j++) { | ||
array[j] = j; | ||
v += array[i-1]; | ||
} | ||
return v; | ||
} | ||
} |
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