Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/InstructionPrinter.java @ 21554:b1530a6cce8c
renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Tue, 26 May 2015 23:21:15 +0200 |
parents | 1cde96b96673 |
children | 0e095e2c24e2 |
line wrap: on
line source
/* * 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.graal.compiler.gen; import static com.oracle.graal.compiler.gen.InstructionPrinter.InstructionLineColumn.*; import com.oracle.graal.nodes.*; import com.oracle.jvmci.debug.*; /** * A utility for {@linkplain #printInstruction(ValueNode) printing} a node as an expression or * statement. */ public class InstructionPrinter { /** * The columns printed in a tabulated instruction * {@linkplain InstructionPrinter#printInstructionListing(ValueNode) listing}. */ public enum InstructionLineColumn { /** * The instruction's bytecode index. */ BCI(2, "bci"), /** * The instruction's use count. */ USE(7, "use"), /** * The instruction as a value. */ VALUE(12, "tid"), /** * The instruction formatted as an expression or statement. */ INSTRUCTION(19, "instr"), END(60, ""); final int position; final String label; private InstructionLineColumn(int position, String label) { this.position = position; this.label = label; } /** * Prints this column's label to a given stream after padding the stream with '_' characters * until its {@linkplain LogStream#position() position} is equal to this column's position. * * @param out the print stream */ public void printLabel(LogStream out) { out.fillTo(position + out.indentationLevel(), '_'); out.print(label); } /** * Prints space characters to a given stream until its {@linkplain LogStream#position() * position} is equal to this column's position. * * @param out the print stream */ public void advance(LogStream out) { out.fillTo(position + out.indentationLevel(), ' '); } } private final LogStream out; public InstructionPrinter(LogStream out) { this.out = out; } public LogStream out() { return out; } /** * Prints a header for the tabulated data printed by {@link #printInstructionListing(ValueNode)} * . */ public void printInstructionListingHeader() { BCI.printLabel(out); USE.printLabel(out); VALUE.printLabel(out); INSTRUCTION.printLabel(out); END.printLabel(out); out.println(); } /** * Prints an instruction listing on one line. The instruction listing is composed of the columns * specified by {@link InstructionLineColumn}. * * @param instruction the instruction to print */ public void printInstructionListing(ValueNode instruction) { int indentation = out.indentationLevel(); out.fillTo(BCI.position + indentation, ' ').print(0).fillTo(USE.position + indentation, ' ').print("0").fillTo(VALUE.position + indentation, ' ').print(ValueNodeUtil.valueString(instruction)).fillTo( INSTRUCTION.position + indentation, ' '); printInstruction(instruction); if (instruction instanceof StateSplit) { out.print(" [state: " + ((StateSplit) instruction).stateAfter() + "]"); } out.println(); } public void printInstruction(ValueNode node) { out.print(node.toString()); } }