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8212681: Refactor IC locking to use a fine grained CompiledICLocker

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Reviewed-by: coleenp, rehn, kvn
This commit is contained in:
Erik Österlund 2018-11-01 14:57:26 +01:00
parent 54d4acf73f
commit 97d3dc7902
23 changed files with 211 additions and 103 deletions
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50
src/hotspot/share/code/codeBehaviours.hpp Normal file
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/*
* Copyright (c) 2018, 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.
*
*/
#ifndef SHARE_CODE_CODEBEHAVIOURS_HPP
#define SHARE_CODE_CODEBEHAVIOURS_HPP
#include "memory/allocation.hpp"
class CompiledMethod;
class CompiledICProtectionBehaviour {
static CompiledICProtectionBehaviour* _current;
public:
virtual bool lock(CompiledMethod* method) = 0;
virtual void unlock(CompiledMethod* method) = 0;
virtual bool is_safe(CompiledMethod* method) = 0;
static CompiledICProtectionBehaviour* current() { return _current; }
static void set_current(CompiledICProtectionBehaviour* current) { _current = current; }
};
class DefaultICProtectionBehaviour: public CompiledICProtectionBehaviour, public CHeapObj<mtInternal> {
virtual bool lock(CompiledMethod* method);
virtual void unlock(CompiledMethod* method);
virtual bool is_safe(CompiledMethod* method);
};
#endif // SHARE_CODE_CODEBEHAVIOURS_HPP