Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIR.java @ 5507:dc71b06d09f8
Moving classes from cri.ri to api.meta.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 07 Jun 2012 18:24:06 +0200 |
parents | 56860d3f9f39 |
children | bc647d8b0080 |
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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.graal.lir; import java.util.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.debug.*; import com.oracle.graal.graph.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.lir.cfg.*; /** * This class implements the overall container for the LIR graph * and directs its construction, optimization, and finalization. */ public class LIR { public final ControlFlowGraph cfg; /** * The nodes for the blocks. * TODO: This should go away, we want all nodes connected with a next-pointer. */ private final BlockMap<List<Node>> blockToNodesMap; /** * The linear-scan ordered list of blocks. */ private final List<Block> linearScanOrder; /** * The order in which the code is emitted. */ private final List<Block> codeEmittingOrder; /** * Various out-of-line stubs to be emitted near the end of the method * after all other LIR code has been emitted. */ public final List<Code> stubs; private int numVariables; public SpillMoveFactory spillMoveFactory; public interface SpillMoveFactory { LIRInstruction createMove(RiValue result, RiValue input); LIRInstruction createExchange(RiValue input1, RiValue input2); } private boolean hasArgInCallerFrame; /** * An opaque chunk of machine code. */ public interface Code { void emitCode(TargetMethodAssembler tasm); /** * A description of this code stub useful for commenting the code in a disassembly. */ String description(); } /** * Creates a new LIR instance for the specified compilation. * @param numLoops number of loops * @param compilation the compilation */ public LIR(ControlFlowGraph cfg, BlockMap<List<Node>> blockToNodesMap, List<Block> linearScanOrder, List<Block> codeEmittingOrder) { this.cfg = cfg; this.blockToNodesMap = blockToNodesMap; this.codeEmittingOrder = codeEmittingOrder; this.linearScanOrder = linearScanOrder; stubs = new ArrayList<>(); } /** * Gets the nodes in a given block. */ public List<Node> nodesFor(Block block) { return blockToNodesMap.get(block); } /** * Determines if any instruction in the LIR has any debug info associated with it. */ public boolean hasDebugInfo() { for (Block b : linearScanOrder()) { for (LIRInstruction op : b.lir) { if (op.info != null) { return true; } } } return false; } /** * Gets the linear scan ordering of blocks as a list. * @return the blocks in linear scan order */ public List<Block> linearScanOrder() { return linearScanOrder; } public List<Block> codeEmittingOrder() { return codeEmittingOrder; } public int numVariables() { return numVariables; } public int nextVariable() { return numVariables++; } public void emitCode(TargetMethodAssembler tasm) { if (tasm.frameContext != null) { tasm.frameContext.enter(tasm); } for (Block b : codeEmittingOrder()) { emitBlock(tasm, b); } // generate code stubs for (Code c : stubs) { emitCodeStub(tasm, c); } } private static void emitBlock(TargetMethodAssembler tasm, Block block) { if (Debug.isDumpEnabled()) { tasm.blockComment(String.format("block B%d %s", block.getId(), block.getLoop())); } for (LIRInstruction op : block.lir) { if (Debug.isDumpEnabled()) { tasm.blockComment(String.format("%d %s", op.id(), op)); } emitOp(tasm, op); } } 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 static void emitCodeStub(TargetMethodAssembler tasm, Code code) { if (Debug.isDumpEnabled()) { tasm.blockComment(String.format("code stub: %s", code.description())); } code.emitCode(tasm); } public void setHasArgInCallerFrame() { hasArgInCallerFrame = true; } /** * Determines if any of the parameters to the method are passed via the stack * where the parameters are located in the caller's frame. */ public boolean hasArgInCallerFrame() { return hasArgInCallerFrame; } /* 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(Block x) { // print block id TTY.print("B%d ", x.getId()); // 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).getId()); } } if (x.numberOfSux() > 0) { TTY.print("sux: "); for (int i = 0; i < x.numberOfSux(); i++) { TTY.print("B%d ", x.suxAt(i).getId()); } } TTY.println(); } public static void printLIR(List<Block> blocks) { if (TTY.isSuppressed()) { return; } TTY.println("LIR:"); int i; for (i = 0; i < blocks.size(); i++) { Block bb = blocks.get(i); printBlock(bb); TTY.println("__id_Instruction___________________________________________"); for (LIRInstruction op : bb.lir) { TTY.println(op.toStringWithIdPrefix()); TTY.println(); } TTY.println(); } } */ }