1 /* 2 * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.graph.spi; 26 27 import jdk.vm.ci.meta.Assumptions; 28 import jdk.vm.ci.meta.ConstantReflectionProvider; 29 import jdk.vm.ci.meta.MetaAccessProvider; 30 31 import org.graalvm.compiler.core.common.spi.ConstantFieldProvider; 32 import org.graalvm.compiler.graph.Node; 33 import org.graalvm.compiler.options.OptionValues; 34 35 public interface CanonicalizerTool { 36 37 Assumptions getAssumptions(); 38 39 MetaAccessProvider getMetaAccess(); 40 41 ConstantReflectionProvider getConstantReflection(); 42 43 ConstantFieldProvider getConstantFieldProvider(); 44 45 boolean canonicalizeReads(); 46 47 /** 48 * If this method returns false, not all {@link Node#usages() usages of a node} are yet 49 * available. So a node must not be canonicalized base on, e.g., information returned from 50 * {@link Node#hasNoUsages()}. 51 */ 52 boolean allUsagesAvailable(); 53 54 /** 55 * Indicates the smallest width for comparing an integer value on the target platform. If this 56 * method returns null, then there is no known smallest compare width. 57 */ 58 Integer smallestCompareWidth(); 59 60 OptionValues getOptions(); 61 }