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8283441: C2: segmentation fault in ciMethodBlocks::make_block_at(int)
Backport-of: 947869609ce6b74d4d28f79724b823d8781adbed
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Yuri Nesterenko
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Aug 26, 2022
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Original file line number | Diff line number | Diff line change |
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/* | ||
* Copyright (c) 2022, 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. | ||
*/ | ||
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package compiler/parsing; | ||
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super public class Custom { | ||
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public static Method test:"(I)V" stack 2 locals 1 { | ||
return; | ||
Loop: | ||
// Unreachable block | ||
iload_0; | ||
bipush 100; | ||
if_icmpge Loop; | ||
// Falls through | ||
} | ||
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} |
42 changes: 42 additions & 0 deletions
42
test/hotspot/jtreg/compiler/parsing/UnreachableBlockFallsThroughEndOfCode.java
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,42 @@ | ||
/* | ||
* Copyright (c) 2022, 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. | ||
* | ||
*/ | ||
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/* | ||
* @test UnreachableBlockFallsThroughEndOfCode.java | ||
* @bug 8283441 | ||
* @compile Custom.jasm UnreachableBlockFallsThroughEndOfCode.java | ||
* @summary Compiling method that falls off the end of the code array | ||
* @run main/othervm -XX:TieredStopAtLevel=1 -Xbatch compiler.parsing.UnreachableBlockFallsThroughEndOfCode | ||
* @run main/othervm -XX:-TieredCompilation -Xbatch compiler.parsing.UnreachableBlockFallsThroughEndOfCode | ||
*/ | ||
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package compiler.parsing; | ||
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public class UnreachableBlockFallsThroughEndOfCode { | ||
public static void main(String[] strArr) { | ||
for (int i = 0; i < 20000; i++) { | ||
Custom.test(i); | ||
} | ||
} | ||
} |
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