| /* |
| * 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.core; |
| |
| import java.util.List; |
| |
| import org.graalvm.compiler.core.common.cfg.AbstractBlockBase; |
| import org.graalvm.compiler.core.common.cfg.BlockMap; |
| import org.graalvm.compiler.debug.Debug; |
| import org.graalvm.compiler.debug.DebugCounter; |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.lir.gen.LIRGenerationResult; |
| import org.graalvm.compiler.lir.gen.LIRGeneratorTool; |
| import org.graalvm.compiler.lir.phases.LIRPhase; |
| import org.graalvm.compiler.lir.ssa.SSAUtil; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.StructuredGraph.ScheduleResult; |
| import org.graalvm.compiler.nodes.cfg.Block; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| |
| import jdk.vm.ci.code.TargetDescription; |
| |
| public class LIRGenerationPhase extends LIRPhase<LIRGenerationPhase.LIRGenerationContext> { |
| |
| public static final class LIRGenerationContext { |
| private final NodeLIRBuilderTool nodeLirBuilder; |
| private final LIRGeneratorTool lirGen; |
| private final StructuredGraph graph; |
| private final ScheduleResult schedule; |
| |
| public LIRGenerationContext(LIRGeneratorTool lirGen, NodeLIRBuilderTool nodeLirBuilder, StructuredGraph graph, ScheduleResult schedule) { |
| this.nodeLirBuilder = nodeLirBuilder; |
| this.lirGen = lirGen; |
| this.graph = graph; |
| this.schedule = schedule; |
| } |
| } |
| |
| private static final DebugCounter instructionCounter = Debug.counter("GeneratedLIRInstructions"); |
| |
| @Override |
| protected final void run(TargetDescription target, LIRGenerationResult lirGenRes, LIRGenerationPhase.LIRGenerationContext context) { |
| NodeLIRBuilderTool nodeLirBuilder = context.nodeLirBuilder; |
| StructuredGraph graph = context.graph; |
| ScheduleResult schedule = context.schedule; |
| for (AbstractBlockBase<?> b : lirGenRes.getLIR().getControlFlowGraph().getBlocks()) { |
| emitBlock(nodeLirBuilder, lirGenRes, (Block) b, graph, schedule.getBlockToNodesMap()); |
| } |
| context.lirGen.beforeRegisterAllocation(); |
| assert SSAUtil.verifySSAForm(lirGenRes.getLIR()); |
| } |
| |
| private static void emitBlock(NodeLIRBuilderTool nodeLirGen, LIRGenerationResult lirGenRes, Block b, StructuredGraph graph, BlockMap<List<Node>> blockMap) { |
| assert !isProcessed(lirGenRes, b) : "Block already processed " + b; |
| assert verifyPredecessors(lirGenRes, b); |
| nodeLirGen.doBlock(b, graph, blockMap); |
| if (instructionCounter.isEnabled()) { |
| instructionCounter.add(lirGenRes.getLIR().getLIRforBlock(b).size()); |
| } |
| } |
| |
| private static boolean verifyPredecessors(LIRGenerationResult lirGenRes, Block block) { |
| for (Block pred : block.getPredecessors()) { |
| if (!block.isLoopHeader() || !pred.isLoopEnd()) { |
| assert isProcessed(lirGenRes, pred) : "Predecessor not yet processed " + pred; |
| } |
| } |
| return true; |
| } |
| |
| private static boolean isProcessed(LIRGenerationResult lirGenRes, Block b) { |
| return lirGenRes.getLIR().getLIRforBlock(b) != null; |
| } |
| |
| } |