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annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiRegisterValue.java @ 4558:3706975946e4

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Make graph dumping a bit more robust when there is no method, enable debug in the startCompiler method, add context and scope for snippets installation Made IGV display graphs even if some edges are problematic When schedule failed don't use it
author Gilles Duboscq <duboscq@ssw.jku.at>
date Fri, 10 Feb 2012 02:22:23 +0100
parents aaac4894175c
children 438ab53efdd0
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1 /*
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2 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.max.cri.ci;
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24
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25 /**
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26 * Denotes a register that stores a value of a fixed kind. There is exactly one (canonical) instance of {@code
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27 * CiRegisterValue} for each ({@link CiRegister}, {@link CiKind}) pair. Use {@link CiRegister#asValue(CiKind)} to
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28 * retrieve the canonical {@link CiRegisterValue} instance for a given (register,kind) pair.
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29 */
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30 public final class CiRegisterValue extends CiValue {
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31 private static final long serialVersionUID = 7999341472196897163L;
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33 /**
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34 * The register.
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35 */
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36 public final CiRegister reg;
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38 /**
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39 * Should only be called from {@link CiRegister#CiRegister} to ensure canonicalization.
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40 */
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41 protected CiRegisterValue(CiKind kind, CiRegister register) {
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42 super(kind);
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43 this.reg = register;
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44 }
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46 @Override
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47 public int hashCode() {
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48 return (reg.number << 4) ^ kind.ordinal();
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49 }
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51 @Override
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52 public String toString() {
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53 return reg.name + kindSuffix();
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54 }
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55 }