Mercurial > hg > truffle
view src/share/vm/memory/freeBlockDictionary.cpp @ 11860:762dc2f23d1c
InvokeWithException: make next successor a special begin node which has the same locationidentity as the invoke
InvokeWithExceptionNode has the unpleasant property that it is a ControlSplit
and MemoryCheckPoint at the same time. In terms of scheduling, a node cannot
be placed after a ControlSplit node as it denotes the end of a block. Thus,
instead of connecting a FloatingReadNode to the InvokeWithException node
directly (as lastLocationAccess), we point rather to the BeginNode
(non-exceptional case) or ExceptionBeginNode.
To preserve consistency regarding memory dependencies, the former node must be
also a MemoryCheckPoint.
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Wed, 02 Oct 2013 11:16:21 +0200 |
parents | db9981fd3124 |
children | bdfbb1fb19ca |
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/* * Copyright (c) 2002, 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. * */ #include "precompiled.hpp" #include "utilities/macros.hpp" #if INCLUDE_ALL_GCS #include "gc_implementation/concurrentMarkSweep/freeChunk.hpp" #endif // INCLUDE_ALL_GCS #include "memory/freeBlockDictionary.hpp" #include "memory/metablock.hpp" #include "memory/metachunk.hpp" #include "runtime/thread.inline.hpp" #include "utilities/macros.hpp" #ifndef PRODUCT template <class Chunk> Mutex* FreeBlockDictionary<Chunk>::par_lock() const { return _lock; } template <class Chunk> void FreeBlockDictionary<Chunk>::set_par_lock(Mutex* lock) { _lock = lock; } template <class Chunk> void FreeBlockDictionary<Chunk>::verify_par_locked() const { #ifdef ASSERT if (ParallelGCThreads > 0) { Thread* my_thread = Thread::current(); if (my_thread->is_GC_task_thread()) { assert(par_lock() != NULL, "Should be using locking?"); assert_lock_strong(par_lock()); } } #endif // ASSERT } #endif template class FreeBlockDictionary<Metablock>; template class FreeBlockDictionary<Metachunk>; #if INCLUDE_ALL_GCS // Explicitly instantiate for FreeChunk template class FreeBlockDictionary<FreeChunk>; #endif // INCLUDE_ALL_GCS