| /* |
| * Copyright (c) 2015, 2015, 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 org.graalvm.compiler.lir.phases; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.ListIterator; |
| |
| import org.graalvm.compiler.lir.gen.LIRGenerationResult; |
| |
| import jdk.vm.ci.code.TargetDescription; |
| |
| public class LIRPhaseSuite<C> extends LIRPhase<C> { |
| private List<LIRPhase<C>> phases; |
| private boolean immutable; |
| |
| public LIRPhaseSuite() { |
| phases = new ArrayList<>(); |
| } |
| |
| /** |
| * Add a new phase at the beginning of this suite. |
| */ |
| public final void prependPhase(LIRPhase<C> phase) { |
| phases.add(0, phase); |
| } |
| |
| /** |
| * Add a new phase at the end of this suite. |
| */ |
| public final void appendPhase(LIRPhase<C> phase) { |
| phases.add(phase); |
| } |
| |
| public final ListIterator<LIRPhase<C>> findPhase(Class<? extends LIRPhase<C>> phaseClass) { |
| ListIterator<LIRPhase<C>> it = phases.listIterator(); |
| if (findNextPhase(it, phaseClass)) { |
| return it; |
| } else { |
| return null; |
| } |
| } |
| |
| public final <T extends LIRPhase<C>> T findPhaseInstance(Class<T> phaseClass) { |
| ListIterator<LIRPhase<C>> it = phases.listIterator(); |
| while (it.hasNext()) { |
| LIRPhase<C> phase = it.next(); |
| if (phaseClass.isInstance(phase)) { |
| return phaseClass.cast(phase); |
| } |
| } |
| return null; |
| } |
| |
| public static <C> boolean findNextPhase(ListIterator<LIRPhase<C>> it, Class<? extends LIRPhase<C>> phaseClass) { |
| while (it.hasNext()) { |
| LIRPhase<C> phase = it.next(); |
| if (phaseClass.isInstance(phase)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| protected final void run(TargetDescription target, LIRGenerationResult lirGenRes, C context) { |
| for (LIRPhase<C> phase : phases) { |
| phase.apply(target, lirGenRes, context); |
| } |
| } |
| |
| public LIRPhaseSuite<C> copy() { |
| LIRPhaseSuite<C> suite = new LIRPhaseSuite<>(); |
| suite.phases.addAll(phases); |
| return suite; |
| } |
| |
| public boolean isImmutable() { |
| return immutable; |
| } |
| |
| public synchronized void setImmutable() { |
| if (!immutable) { |
| phases = Collections.unmodifiableList(phases); |
| immutable = true; |
| } |
| } |
| } |