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8244407: JVM crashes after transformation in C2 IdealLoopTree::split_…
…fall_in Reviewed-by: thartmann, kvn
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Yong Zhou
authored and
Fei Yang
committed
May 12, 2020
1 parent
cdf8cc5
commit dc54da232dd74dcfe1ee38038e080e5f7be42eb9
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/* | ||
* Copyright (c) 2020, Huawei Technologies Co. Ltd. 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 8244407 | ||
* @summary JVM crashes after transformation in C2 IdealLoopTree::split_fall_in | ||
* | ||
* @run main/othervm -Xcomp -XX:-BackgroundCompilation | ||
* -XX:CompileCommand=compileonly,compiler.loopopts.TestBeautifyLoops_2::testMethod | ||
* compiler.loopopts.TestBeautifyLoops_2 | ||
*/ | ||
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package compiler.loopopts; | ||
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public class TestBeautifyLoops_2 { | ||
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private class X { | ||
public int x() { | ||
return -1; | ||
} | ||
} | ||
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private int mI = 0; | ||
private float mF = 0; | ||
private boolean mZ = false; | ||
private X mX = new X(); | ||
private long[] mArray = new long[331]; | ||
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private void testMethod() { | ||
double d = 0; | ||
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for (int i = 0; i < 331; i++) { | ||
if (mZ) { | ||
continue; | ||
} | ||
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try { | ||
for (int j = mArray.length - 1; j >= 0; j--) { | ||
for (int k = 0; k < 331; k++) { | ||
d += ((double) new Double(d)); | ||
switch (267) { | ||
case 256: | ||
default: { | ||
mF += (mX.x()); | ||
break; | ||
} | ||
} | ||
} | ||
} | ||
} catch (Exception ignore) { | ||
} | ||
} | ||
} | ||
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public static void main(String[] args) { | ||
TestBeautifyLoops_2 obj = new TestBeautifyLoops_2(); | ||
obj.testMethod(); | ||
} | ||
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} |