Mercurial > hg > graal-compiler
view graal/com.oracle.graal.printer/src/com/oracle/graal/printer/CompilationPrinter.java @ 21905:3187b704b4d1
fixed npe in CompilationPrinter
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Thu, 11 Jun 2015 01:16:06 +0200 |
parents | b9f9b8af17ff |
children | 0e095e2c24e2 |
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/* * Copyright (c) 2011, 2014, 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.printer; import java.io.*; import java.util.*; import com.oracle.jvmci.code.*; import com.oracle.jvmci.debug.*; import com.oracle.jvmci.meta.*; /** * Utility for printing compilation related data structures at various compilation phases. The * output format is such that it can then be fed to the <a * href="https://c1visualizer.dev.java.net/">C1 Visualizer</a>. */ public class CompilationPrinter implements Closeable { public static final String COLUMN_END = " <|@"; public static final String HOVER_START = "<@"; public static final String HOVER_SEP = "|@"; public static final String HOVER_END = ">@"; private static OutputStream globalOut; /** * Gets a global output stream on a file in the current working directory. This stream is first * opened if necessary. The name of the file is * {@code "compilations-" + System.currentTimeMillis() + ".cfg"}. * * @return the global output stream or {@code null} if there was an error opening the file for * writing */ public static synchronized OutputStream globalOut() { if (globalOut == null) { File file = new File("compilations-" + System.currentTimeMillis() + ".cfg"); try { globalOut = new FileOutputStream(file); } catch (FileNotFoundException e) { TTY.println("WARNING: Could not open " + file.getAbsolutePath()); } } return globalOut; } protected final LogStream out; /** * Creates a control flow graph printer. * * @param os where the output generated via this printer will be sent */ public CompilationPrinter(OutputStream os) { out = new LogStream(os); } /** * Flushes all buffered output to the underlying output stream. */ public void flush() { out.flush(); } @Override public void close() { out.out().close(); } protected void begin(String string) { out.println("begin_" + string); out.adjustIndentation(2); } protected void end(String string) { out.adjustIndentation(-2); out.println("end_" + string); } /** * Prints a compilation timestamp for a given method. * * @param method the method for which a timestamp will be printed */ public void printCompilation(JavaMethod method) { begin("compilation"); out.print("name \" ").print(method.format("%H::%n")).println('"'); out.print("method \"").print(method.format("%f %r %H.%n(%p)")).println('"'); out.print("date ").println(System.currentTimeMillis()); end("compilation"); } /** * Formats given debug info as a multi line string. */ protected String debugInfoToString(BytecodePosition codePos, ReferenceMap refMap, RegisterSaveLayout calleeSaveInfo) { StringBuilder sb = new StringBuilder(); if (refMap != null) { sb.append(refMap.toString()); sb.append("\n"); } if (calleeSaveInfo != null) { sb.append("callee-save-info:"); for (Map.Entry<Register, Integer> e : calleeSaveInfo.registersToSlots(true).entrySet()) { sb.append(" " + e.getKey() + " -> s" + e.getValue()); } sb.append("\n"); } if (codePos != null) { BytecodePosition curCodePos = codePos; List<VirtualObject> virtualObjects = new ArrayList<>(); do { sb.append(MetaUtil.toLocation(curCodePos.getMethod(), curCodePos.getBCI())); sb.append('\n'); if (curCodePos instanceof BytecodeFrame) { BytecodeFrame frame = (BytecodeFrame) curCodePos; if (frame.numStack > 0) { sb.append("stack: "); for (int i = 0; i < frame.numStack; i++) { sb.append(valueToString(frame.getStackValue(i), virtualObjects)).append(' '); } sb.append("\n"); } sb.append("locals: "); for (int i = 0; i < frame.numLocals; i++) { sb.append(valueToString(frame.getLocalValue(i), virtualObjects)).append(' '); } sb.append("\n"); if (frame.numLocks > 0) { sb.append("locks: "); for (int i = 0; i < frame.numLocks; ++i) { sb.append(valueToString(frame.getLockValue(i), virtualObjects)).append(' '); } sb.append("\n"); } } curCodePos = curCodePos.getCaller(); } while (curCodePos != null); for (int i = 0; i < virtualObjects.size(); i++) { VirtualObject obj = virtualObjects.get(i); sb.append(obj).append(" ").append(obj.getType().getName()).append(" "); for (int j = 0; j < obj.getValues().length; j++) { sb.append(valueToString(obj.getValues()[j], virtualObjects)).append(' '); } sb.append("\n"); } } return sb.toString(); } protected String valueToString(Value value, List<VirtualObject> virtualObjects) { if (value == null) { return "-"; } if (value instanceof VirtualObject && !virtualObjects.contains(value)) { virtualObjects.add((VirtualObject) value); } return value.toString(); } public void printMachineCode(String code, String label) { if (code == null || code.length() == 0) { return; } if (label != null) { begin("cfg"); out.print("name \"").print(label).println('"'); end("cfg"); } begin("nmethod"); out.print(code); out.println(" <|@"); end("nmethod"); } public void printBytecodes(String code) { if (code == null || code.length() == 0) { return; } begin("bytecodes"); out.print(code); out.println(" <|@"); end("bytecodes"); } }