1 /* 2 * Copyright (c) 2011, 2019, 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.nodes.spi; 26 27 import org.graalvm.compiler.core.common.spi.ConstantFieldProvider; 28 import org.graalvm.compiler.graph.NodeSourcePosition; 29 import org.graalvm.compiler.nodes.FixedNode; 30 import org.graalvm.compiler.nodes.FixedWithNextNode; 31 import org.graalvm.compiler.nodes.LogicNode; 32 import org.graalvm.compiler.nodes.extended.AnchoringNode; 33 import org.graalvm.compiler.nodes.extended.GuardingNode; 34 35 import jdk.vm.ci.meta.ConstantReflectionProvider; 36 import jdk.vm.ci.meta.DeoptimizationAction; 37 import jdk.vm.ci.meta.DeoptimizationReason; 38 import jdk.vm.ci.meta.MetaAccessProvider; 39 import jdk.vm.ci.meta.SpeculationLog.Speculation; 40 41 public interface LoweringTool { 42 43 CoreProviders getProviders(); 44 45 MetaAccessProvider getMetaAccess(); 46 47 LoweringProvider getLowerer(); 48 49 ConstantReflectionProvider getConstantReflection(); 50 51 ConstantFieldProvider getConstantFieldProvider(); 52 53 Replacements getReplacements(); 54 55 StampProvider getStampProvider(); 56 57 GuardingNode createGuard(FixedNode before, LogicNode condition, DeoptimizationReason deoptReason, DeoptimizationAction action); 58 59 GuardingNode createGuard(FixedNode before, LogicNode condition, DeoptimizationReason deoptReason, DeoptimizationAction action, Speculation speculation, boolean negated, 60 NodeSourcePosition noDeoptSuccessorPosition); 61 62 /** 63 * Gets the closest fixed node preceding the node currently being lowered. 64 */ 65 FixedWithNextNode lastFixedNode(); 66 67 AnchoringNode getCurrentGuardAnchor(); 68 69 /** 70 * Marker interface lowering stages. 71 */ 72 interface LoweringStage { 73 } 74 75 /** 76 * The lowering stages used in a standard Graal phase plan. Lowering is called 3 times, during 77 * every tier of compilation. 78 */ 79 enum StandardLoweringStage implements LoweringStage { 80 HIGH_TIER, 81 MID_TIER, 82 LOW_TIER 83 } 84 85 /** 86 * Returns current lowering stage. 87 */ 88 LoweringStage getLoweringStage(); 89 }