Mercurial > hg > truffle
view graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/graph/IR.java @ 2874:d90bf514d647
Renamed packages.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 08 Jun 2011 08:59:54 +0200 |
parents | graal/com.oracle.max.graal.compiler/src/com/sun/c1x/graph/IR.java@0341b6424579 |
children | 3570f1f7903e |
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/* * Copyright (c) 2009, 2011, 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.max.graal.compiler.graph; import java.util.*; import com.oracle.max.graal.compiler.*; import com.oracle.max.graal.compiler.debug.*; import com.oracle.max.graal.compiler.ir.*; import com.oracle.max.graal.compiler.lir.*; import com.oracle.max.graal.compiler.observer.*; import com.oracle.max.graal.compiler.opt.*; import com.oracle.max.graal.compiler.schedule.*; import com.oracle.max.graal.compiler.value.*; import com.oracle.max.graal.graph.*; /** * This class implements the overall container for the HIR (high-level IR) graph * and directs its construction, optimization, and finalization. */ public class IR { /** * The compilation associated with this IR. */ public final C1XCompilation compilation; /** * The start block of this IR. */ public LIRBlock startBlock; /** * The linear-scan ordered list of blocks. */ private List<LIRBlock> orderedBlocks; /** * Creates a new IR instance for the specified compilation. * @param compilation the compilation */ public IR(C1XCompilation compilation) { this.compilation = compilation; } public Map<Node, LIRBlock> valueToBlock; /** * Builds the graph, optimizes it, and computes the linear scan block order. */ public void build() { if (C1XOptions.PrintTimers) { C1XTimers.HIR_CREATE.start(); } buildGraph(); if (C1XOptions.PrintTimers) { C1XTimers.HIR_CREATE.stop(); C1XTimers.HIR_OPTIMIZE.start(); } Graph graph = compilation.graph; if (C1XOptions.OptCanonicalizer) { new CanonicalizerPhase().apply(graph); verifyAndPrint("After canonicalization"); } // Split critical edges. List<Node> nodes = graph.getNodes(); for (int i = 0; i < nodes.size(); ++i) { Node n = nodes.get(i); if (Schedule.trueSuccessorCount(n) > 1) { for (int j = 0; j < n.successors().size(); ++j) { Node succ = n.successors().get(j); if (Schedule.truePredecessorCount(succ) > 1) { Anchor a = new Anchor(graph); a.successors().setAndClear(1, n, j); n.successors().set(j, a); } } } } Schedule schedule = new Schedule(graph); List<Block> blocks = schedule.getBlocks(); List<LIRBlock> lirBlocks = new ArrayList<LIRBlock>(); Map<Block, LIRBlock> map = new HashMap<Block, LIRBlock>(); for (Block b : blocks) { LIRBlock block = new LIRBlock(b.blockID()); map.put(b, block); block.setInstructions(b.getInstructions()); block.setLinearScanNumber(b.blockID()); block.setFirstInstruction(b.firstNode()); block.setLastInstruction(b.lastNode()); lirBlocks.add(block); } for (Block b : blocks) { for (Block succ : b.getSuccessors()) { map.get(b).blockSuccessors().add(map.get(succ)); } for (Block pred : b.getPredecessors()) { map.get(b).blockPredecessors().add(map.get(pred)); } } orderedBlocks = lirBlocks; valueToBlock = new HashMap<Node, LIRBlock>(); for (LIRBlock b : orderedBlocks) { for (Node i : b.getInstructions()) { valueToBlock.put(i, b); } } startBlock = lirBlocks.get(0); assert startBlock != null; assert startBlock.blockPredecessors().size() == 0; ComputeLinearScanOrder clso = new ComputeLinearScanOrder(lirBlocks.size(), startBlock); orderedBlocks = clso.linearScanOrder(); this.compilation.stats.loopCount = clso.numLoops(); int z = 0; for (LIRBlock b : orderedBlocks) { b.setLinearScanNumber(z++); } verifyAndPrint("After linear scan order"); if (C1XOptions.PrintTimers) { C1XTimers.HIR_OPTIMIZE.stop(); } } private void buildGraph() { // Graph builder must set the startBlock and the osrEntryBlock new GraphBuilder(compilation, compilation.method, compilation.graph).build(false); // CompilerGraph duplicate = new CompilerGraph(); // Map<Node, Node> replacements = new HashMap<Node, Node>(); // replacements.put(compilation.graph.start(), duplicate.start()); // duplicate.addDuplicate(compilation.graph.getNodes(), replacements); // compilation.graph = duplicate; verifyAndPrint("After graph building"); DeadCodeElimination dce = new DeadCodeElimination(); dce.apply(compilation.graph); if (dce.deletedNodeCount > 0) { verifyAndPrint("After dead code elimination"); } if (C1XOptions.Inline) { new Inlining(compilation, this).apply(compilation.graph); } if (C1XOptions.PrintCompilation) { TTY.print(String.format("%3d blocks | ", compilation.stats.blockCount)); } } /** * Gets the linear scan ordering of blocks as a list. * @return the blocks in linear scan order */ public List<LIRBlock> linearScanOrder() { return orderedBlocks; } private void print(boolean cfgOnly) { if (!TTY.isSuppressed()) { TTY.println("IR for " + compilation.method); final InstructionPrinter ip = new InstructionPrinter(TTY.out()); final BlockPrinter bp = new BlockPrinter(this, ip, cfgOnly); //getHIRStartBlock().iteratePreOrder(bp); } } /** * Verifies the IR and prints it out if the relevant options are set. * @param phase the name of the phase for printing */ public void verifyAndPrint(String phase) { if (C1XOptions.PrintHIR && !TTY.isSuppressed()) { TTY.println(phase); print(false); } if (compilation.compiler.isObserved()) { compilation.compiler.fireCompilationEvent(new CompilationEvent(compilation, phase, compilation.graph, true, false)); } } public void printGraph(String phase, Graph graph) { if (C1XOptions.PrintHIR && !TTY.isSuppressed()) { TTY.println(phase); print(false); } if (compilation.compiler.isObserved()) { compilation.compiler.fireCompilationEvent(new CompilationEvent(compilation, phase, graph, true, false)); } } public int numLoops() { return compilation.stats.loopCount; } /** * Gets the maximum number of locks in the graph's frame states. */ public final int maxLocks() { int maxLocks = 0; for (Node node : compilation.graph.getNodes()) { if (node instanceof FrameState) { int lockCount = ((FrameState) node).locksSize(); if (lockCount > maxLocks) { maxLocks = lockCount; } } } return maxLocks; } public Instruction getHIRStartBlock() { return (Instruction) compilation.graph.start().successors().get(0); } }