Mercurial > hg > graal-compiler
view src/share/vm/ci/ciArrayKlass.cpp @ 616:4f360ec815ba
6720309: G1: don't synchronously update RSet during evacuation pauses
6720334: G1: don't update RSets of collection set regions during an evacuation pause
Summary: Introduced a deferred update mechanism for delaying the rset updates during the collection pause
Reviewed-by: apetrusenko, tonyp
author | iveresov |
---|---|
date | Fri, 06 Mar 2009 13:50:14 -0800 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 1999-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "incls/_precompiled.incl" #include "incls/_ciArrayKlass.cpp.incl" // ciArrayKlass // // This class represents a klassOop in the HotSpot virtual machine // whose Klass part in an arrayKlass. // ------------------------------------------------------------------ // ciArrayKlass::ciArrayKlass // // Loaded array klass. ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) { assert(get_Klass()->oop_is_array(), "wrong type"); _dimension = get_arrayKlass()->dimension(); } // ------------------------------------------------------------------ // ciArrayKlass::ciArrayKlass // // Unloaded array klass. ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass) : ciKlass(name, klass) { _dimension = dimension; } // ------------------------------------------------------------------ // ciArrayKlass::element_type // // What type is obtained when this array is indexed once? ciType* ciArrayKlass::element_type() { if (is_type_array_klass()) { return ciType::make(as_type_array_klass()->element_type()); } else { return as_obj_array_klass()->element_klass()->as_klass(); } } // ------------------------------------------------------------------ // ciArrayKlass::base_element_type // // What type is obtained when this array is indexed as many times as possible? ciType* ciArrayKlass::base_element_type() { if (is_type_array_klass()) { return ciType::make(as_type_array_klass()->element_type()); } else { ciKlass* ek = as_obj_array_klass()->base_element_klass(); if (ek->is_type_array_klass()) { return ciType::make(ek->as_type_array_klass()->element_type()); } return ek; } } // ------------------------------------------------------------------ // ciArrayKlass::is_leaf_type bool ciArrayKlass::is_leaf_type() { if (is_type_array_klass()) { return true; } else { return as_obj_array_klass()->base_element_klass()->is_leaf_type(); } } // ------------------------------------------------------------------ // ciArrayKlass::base_element_type // // What type is obtained when this array is indexed as many times as possible? ciArrayKlass* ciArrayKlass::make(ciType* element_type) { if (element_type->is_primitive_type()) { return ciTypeArrayKlass::make(element_type->basic_type()); } else { return ciObjArrayKlass::make(element_type->as_klass()); } }