Mercurial > hg > graal-compiler
view src/share/vm/ci/ciInstanceKlassKlass.hpp @ 4836:d30fa85f9994
6484965: G1: piggy-back liveness accounting phase on marking
Summary: Remove the separate counting phase of concurrent marking by tracking the amount of marked bytes and the cards spanned by marked objects in marking task/worker thread local data structures, which are updated as individual objects are marked.
Reviewed-by: brutisso, tonyp
author | johnc |
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date | Thu, 12 Jan 2012 00:06:47 -0800 |
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_CI_CIINSTANCEKLASSKLASS_HPP #define SHARE_VM_CI_CIINSTANCEKLASSKLASS_HPP #include "ci/ciKlassKlass.hpp" // ciInstanceKlassKlass // // This class represents a klassOop in the HotSpot virtual machine // whose Klass part is a instanceKlassKlass. class ciInstanceKlassKlass : public ciKlassKlass { CI_PACKAGE_ACCESS private: ciInstanceKlassKlass(KlassHandle h_k) : ciKlassKlass(h_k, ciSymbol::make("unique_instanceKlassKlass")) { assert(h_k()->klass_part()->oop_is_instanceKlass(), "wrong type"); } instanceKlassKlass* get_instanceKlassKlass() { return (instanceKlassKlass*)get_Klass(); } const char* type_string() { return "ciInstanceKlassKlass"; } public: // What kind of ciObject is this? bool is_instance_klass_klass() { return true; } // Return the distinguished ciInstanceKlassKlass instance. static ciInstanceKlassKlass* make(); }; #endif // SHARE_VM_CI_CIINSTANCEKLASSKLASS_HPP