Mercurial > hg > graal-compiler
view src/share/vm/c1/c1_Optimizer.hpp @ 3357:fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
Summary: Fixed process_chunk_boundaries(), used for parallel card scanning when using ParNew/CMS, so as to prevent double-scanning, or worse, non-scanning of imprecisely marked objects exceeding parallel chunk size. Made some sizing parameters for parallel card scanning diagnostic, disabled ParallelGCRetainPLAB, and elaborated and clarified some comments.
Reviewed-by: stefank, johnc
author | ysr |
---|---|
date | Tue, 10 May 2011 00:33:21 -0700 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 1999, 2010, 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_C1_C1_OPTIMIZER_HPP #define SHARE_VM_C1_C1_OPTIMIZER_HPP #include "c1/c1_IR.hpp" #include "c1/c1_Instruction.hpp" #include "memory/allocation.hpp" class Optimizer VALUE_OBJ_CLASS_SPEC { private: IR* _ir; public: Optimizer(IR* ir); IR* ir() const { return _ir; } // optimizations void eliminate_conditional_expressions(); void eliminate_blocks(); void eliminate_null_checks(); }; #endif // SHARE_VM_C1_C1_OPTIMIZER_HPP