Mercurial > hg > graal-jvmci-8
view graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/lir/LIR.java @ 4351:279a43776f42
Fixed merge issues.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 13 Jan 2012 18:48:46 +0100 |
parents | 685cbfb8e08e |
children | 3d8e80de2c29 |
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/* * Copyright (c) 2009, 2012, 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.lir; import java.util.*; import com.oracle.max.criutils.*; import com.oracle.max.graal.compiler.*; import com.oracle.max.graal.compiler.asm.*; import com.oracle.max.graal.compiler.util.*; import com.oracle.max.graal.graph.*; /** * This class implements the overall container for the LIR graph * and directs its construction, optimization, and finalization. */ public class LIR { /** * The start block of this LIR. */ private final LIRBlock startBlock; /** * The linear-scan ordered list of blocks. */ private final List<LIRBlock> linearScanOrder; /** * The order in which the code is emitted. */ private final List<LIRBlock> codeEmittingOrder; private final NodeMap<LIRBlock> valueToBlock; public final List<SlowPath> slowPaths; public final List<SlowPath> deoptimizationStubs; /** * The last slow path emitted, which can be used emit marker bytes. */ public SlowPath methodEndMarker; private int numVariables; private final int numLoops; public interface SlowPath { void emitCode(TargetMethodAssembler tasm); } /** * Creates a new LIR instance for the specified compilation. * @param loopCount number of loops * @param compilation the compilation */ public LIR(LIRBlock startBlock, List<LIRBlock> linearScanOrder, List<LIRBlock> codeEmittingOrder, NodeMap<LIRBlock> valueToBlock, int numLoops) { this.codeEmittingOrder = codeEmittingOrder; this.linearScanOrder = linearScanOrder; this.startBlock = startBlock; this.valueToBlock = valueToBlock; this.numLoops = numLoops; slowPaths = new ArrayList<>(); deoptimizationStubs = new ArrayList<>(); } /** * Gets the linear scan ordering of blocks as a list. * @return the blocks in linear scan order */ public List<LIRBlock> linearScanOrder() { return linearScanOrder; } public List<LIRBlock> codeEmittingOrder() { return codeEmittingOrder; } public LIRBlock startBlock() { return startBlock; } public NodeMap<LIRBlock> valueToBlock() { return valueToBlock; } public int numVariables() { return numVariables; } public int nextVariable() { return numVariables++; } public void emitCode(TargetMethodAssembler tasm) { if (GraalOptions.PrintLIR && !TTY.isSuppressed()) { printLIR(codeEmittingOrder()); } for (LIRBlock b : codeEmittingOrder()) { emitBlock(tasm, b); } // generate code for slow cases for (SlowPath sp : slowPaths) { sp.emitCode(tasm); } // generate deoptimization stubs for (SlowPath sp : deoptimizationStubs) { sp.emitCode(tasm); } // generate traps at the end of the method methodEndMarker.emitCode(tasm); } private void emitBlock(TargetMethodAssembler tasm, LIRBlock block) { if (GraalOptions.PrintLIRWithAssembly) { block.printWithoutPhis(TTY.out()); } if (GraalOptions.CommentedAssembly) { String st = String.format(" block B%d", block.blockID()); tasm.blockComment(st); } for (LIRInstruction op : block.lir()) { if (GraalOptions.CommentedAssembly) { // Only print out branches if (op.code instanceof LIRBranch) { tasm.blockComment(op.toStringWithIdPrefix()); } } if (GraalOptions.PrintLIRWithAssembly && !TTY.isSuppressed()) { // print out the LIR operation followed by the resulting assembly TTY.println(op.toStringWithIdPrefix()); TTY.println(); } emitOp(tasm, op); if (GraalOptions.PrintLIRWithAssembly) { printAssembly(tasm); } } } private static void emitOp(TargetMethodAssembler tasm, LIRInstruction op) { try { try { op.emitCode(tasm); } catch (AssertionError t) { throw new GraalInternalError(t); } catch (RuntimeException t) { throw new GraalInternalError(t); } } catch (GraalInternalError e) { throw e.addContext("lir instruction", op); } } private int lastDecodeStart; private void printAssembly(TargetMethodAssembler tasm) { byte[] currentBytes = tasm.asm.codeBuffer.copyData(lastDecodeStart, tasm.asm.codeBuffer.position()); if (currentBytes.length > 0) { String disasm = tasm.runtime.disassemble(currentBytes, lastDecodeStart); if (disasm.length() != 0) { TTY.println(disasm); } else { TTY.println("Code [+%d]: %d bytes", lastDecodeStart, currentBytes.length); Util.printBytes(lastDecodeStart, currentBytes, GraalOptions.PrintAssemblyBytesPerLine); } } lastDecodeStart = tasm.asm.codeBuffer.position(); } public static void printBlock(LIRBlock x) { // print block id TTY.print("B%d ", x.blockID()); // print flags if (x.isLoopHeader()) { TTY.print("lh "); } if (x.isLoopEnd()) { TTY.print("le "); } // print block bci range TTY.print("[%d, %d] ", -1, -1); // print predecessors and successors if (x.numberOfPreds() > 0) { TTY.print("preds: "); for (int i = 0; i < x.numberOfPreds(); i++) { TTY.print("B%d ", x.predAt(i).blockID()); } } if (x.numberOfSux() > 0) { TTY.print("sux: "); for (int i = 0; i < x.numberOfSux(); i++) { TTY.print("B%d ", x.suxAt(i).blockID()); } } TTY.println(); } public static void printLIR(List<LIRBlock> blocks) { if (TTY.isSuppressed()) { return; } TTY.println("LIR:"); int i; for (i = 0; i < blocks.size(); i++) { LIRBlock bb = blocks.get(i); printBlock(bb); TTY.println("__id_Instruction___________________________________________"); for (LIRInstruction op : bb.lir()) { TTY.println(op.toStringWithIdPrefix()); TTY.println(); } TTY.println(); } } public int numLoops() { return numLoops; } }