Mercurial > hg > truffle
view graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/EffectsBlockState.java @ 11857:3aef4d88fbb9
simplify PEA block states by turning scalarAliases and objectAliases into one global NodeMap
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 02 Oct 2013 13:18:25 +0200 |
parents | eef9281ec13b |
children | 8ff9e165002b |
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/* * Copyright (c) 2011, 2012, 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. */ package com.oracle.graal.virtual.phases.ea; import java.util.*; public abstract class EffectsBlockState<T extends EffectsBlockState<T>> { @Override public String toString() { return ""; } protected abstract boolean equivalentTo(T other); protected static <K, V> boolean compareMaps(Map<K, V> left, Map<K, V> right) { if (left.size() != right.size()) { return false; } return compareMapsNoSize(left, right); } protected static <K, V> boolean compareMapsNoSize(Map<K, V> left, Map<K, V> right) { if (left == right) { return true; } for (Map.Entry<K, V> entry : right.entrySet()) { K key = entry.getKey(); V value = entry.getValue(); assert value != null; V otherValue = left.get(key); if (otherValue != value && !value.equals(otherValue)) { return false; } } return true; } protected static <U, V> void meetMaps(Map<U, V> target, Map<U, V> source) { Iterator<Map.Entry<U, V>> iter = target.entrySet().iterator(); while (iter.hasNext()) { Map.Entry<U, V> entry = iter.next(); if (source.containsKey(entry.getKey())) { assert source.get(entry.getKey()) == entry.getValue(); } else { iter.remove(); } } } }