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98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/*
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* Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "ci/ciConstant.hpp"
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#include "ci/ciUtilities.hpp"
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#include "memory/allocation.hpp"
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#include "memory/allocation.inline.hpp"
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// ciConstant
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//
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// This class represents a constant value.
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// ------------------------------------------------------------------
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// ciConstant::is_null_or_zero
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bool ciConstant::is_null_or_zero() const {
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if (!is_java_primitive(basic_type())) {
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return as_object()->is_null_object();
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} else if (type2size[basic_type()] == 1) {
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// treat float bits as int, to avoid comparison with -0 and NaN
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return (_value._int == 0);
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} else if (type2size[basic_type()] == 2) {
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// treat double bits as long, to avoid comparison with -0 and NaN
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return (_value._long == 0);
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} else {
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return false;
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}
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}
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// ------------------------------------------------------------------
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// ciConstant::is_loaded
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bool ciConstant::is_loaded() const {
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if (is_valid()) {
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if (is_reference_type(basic_type())) {
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return as_object()->is_loaded();
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} else {
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return true;
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}
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}
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return false;
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}
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// ------------------------------------------------------------------
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// ciConstant::print
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void ciConstant::print() {
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tty->print("<ciConstant type=%s value=",
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basictype_to_str(basic_type()));
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switch (basic_type()) {
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case T_BOOLEAN:
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tty->print("%s", bool_to_str(_value._int != 0));
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break;
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case T_CHAR:
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case T_BYTE:
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case T_SHORT:
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case T_INT:
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tty->print("%d", _value._int);
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break;
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case T_LONG:
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tty->print(INT64_FORMAT, (int64_t)(_value._long));
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break;
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case T_FLOAT:
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tty->print("%f", _value._float);
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break;
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case T_DOUBLE:
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tty->print("%lf", _value._double);
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break;
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default:
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if (is_reference_type(basic_type())) {
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_value._object->print();
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} else {
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tty->print("ILLEGAL");
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}
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break;
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}
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tty->print(">");
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}
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