Mercurial > hg > graal-jvmci-8
view src/share/vm/oops/compiledICHolder.hpp @ 7998:6a51fc70a15e
8006613: adding reason to made_not_compilable
Reviewed-by: kvn, vlivanov
Contributed-by: Igor Ignatyev <igor.ignatyev@oracle.com>
author | vlivanov |
---|---|
date | Tue, 05 Feb 2013 08:25:51 -0800 |
parents | da91efe96a93 |
children |
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/* * Copyright (c) 1998, 2012, 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_VM_OOPS_COMPILEDICHOLDEROOP_HPP #define SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP #include "oops/oop.hpp" // A CompiledICHolder* is a helper object for the inline cache implementation. // It holds an intermediate value (method+klass pair) used when converting from // compiled to an interpreted call. // // These are always allocated in the C heap and are freed during a // safepoint by the ICBuffer logic. It's unsafe to free them earlier // since they might be in use. // class CompiledICHolder : public CHeapObj<mtCompiler> { friend class VMStructs; private: static volatile int _live_count; // allocated static volatile int _live_not_claimed_count; // allocated but not yet in use so not // reachable by iterating over nmethods Method* _holder_method; Klass* _holder_klass; // to avoid name conflict with oopDesc::_klass CompiledICHolder* _next; public: // Constructor CompiledICHolder(Method* method, Klass* klass) : _holder_method(method), _holder_klass(klass) { #ifdef ASSERT Atomic::inc(&_live_count); Atomic::inc(&_live_not_claimed_count); #endif } ~CompiledICHolder() { #ifdef ASSERT assert(_live_count > 0, "underflow"); Atomic::dec(&_live_count); #endif } static int live_count() { return _live_count; } static int live_not_claimed_count() { return _live_not_claimed_count; } // accessors Method* holder_method() const { return _holder_method; } Klass* holder_klass() const { return _holder_klass; } void set_holder_method(Method* m) { _holder_method = m; } void set_holder_klass(Klass* k) { _holder_klass = k; } // interpreter support (offsets in bytes) static int holder_method_offset() { return offset_of(CompiledICHolder, _holder_method); } static int holder_klass_offset() { return offset_of(CompiledICHolder, _holder_klass); } CompiledICHolder* next() { return _next; } void set_next(CompiledICHolder* n) { _next = n; } // Verify void verify_on(outputStream* st); // Printing void print_on(outputStream* st) const; void print_value_on(outputStream* st) const; const char* internal_name() const { return "{compiledICHolder}"; } void claim() { #ifdef ASSERT Atomic::dec(&_live_not_claimed_count); #endif } }; #endif // SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP