1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/shark/sharkConstant.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,74 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2009 Red Hat, Inc.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +#ifndef SHARE_VM_SHARK_SHARKCONSTANT_HPP
1.30 +#define SHARE_VM_SHARK_SHARKCONSTANT_HPP
1.31 +
1.32 +#include "ci/ciStreams.hpp"
1.33 +#include "memory/allocation.hpp"
1.34 +#include "shark/sharkBuilder.hpp"
1.35 +#include "shark/sharkValue.hpp"
1.36 +
1.37 +class SharkConstant : public ResourceObj {
1.38 + public:
1.39 + static SharkConstant* for_ldc(ciBytecodeStream* iter);
1.40 + static SharkConstant* for_field(ciBytecodeStream* iter);
1.41 +
1.42 + private:
1.43 + SharkConstant(ciConstant constant, ciType* type);
1.44 +
1.45 + private:
1.46 + SharkValue* _value;
1.47 + ciObject* _object;
1.48 + ciType* _type;
1.49 + bool _is_loaded;
1.50 + bool _is_nonzero;
1.51 + bool _is_two_word;
1.52 +
1.53 + public:
1.54 + bool is_loaded() const {
1.55 + return _is_loaded;
1.56 + }
1.57 + bool is_nonzero() const {
1.58 + assert(is_loaded(), "should be");
1.59 + return _is_nonzero;
1.60 + }
1.61 + bool is_two_word() const {
1.62 + assert(is_loaded(), "should be");
1.63 + return _is_two_word;
1.64 + }
1.65 +
1.66 + public:
1.67 + SharkValue* value(SharkBuilder* builder) {
1.68 + assert(is_loaded(), "should be");
1.69 + if (_value == NULL) {
1.70 + _value = SharkValue::create_generic(
1.71 + _type, builder->CreateInlineOop(_object), _is_nonzero);
1.72 + }
1.73 + return _value;
1.74 + }
1.75 +};
1.76 +
1.77 +#endif // SHARE_VM_SHARK_SHARKCONSTANT_HPP
