--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/Compiler/src/com/sun/c1x/debug/BlockPrinter.java	Wed Apr 27 11:43:22 2011 +0200
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2009, 2010, 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.sun.c1x.debug;
+
+import com.sun.c1x.graph.*;
+import com.sun.c1x.ir.*;
+import com.sun.c1x.util.*;
+import com.sun.c1x.value.*;
+
+/**
+ * Prints a listing for a {@linkplain BlockBegin block}.
+ *
+ * @author Doug Simon
+ */
+public class BlockPrinter implements BlockClosure {
+
+    private final InstructionPrinter ip;
+    private final boolean cfgOnly;
+    private final boolean liveOnly;
+
+    public BlockPrinter(IR ir, InstructionPrinter ip, boolean cfgOnly, boolean liveOnly) {
+        this.ip = ip;
+        this.cfgOnly = cfgOnly;
+        this.liveOnly = liveOnly;
+    }
+
+    public void apply(BlockBegin block) {
+        if (cfgOnly) {
+            ip.printInstruction(block);
+            ip.out().println();
+        } else {
+            printBlock(block, liveOnly);
+        }
+    }
+
+    public void printBlock(BlockBegin block, boolean liveOnly) {
+        ip.printInstruction(block);
+        LogStream out = ip.out();
+        out.println();
+        printFrameState(block.stateBefore(), out);
+        out.println();
+
+        out.println("inlining depth " + block.stateBefore().scope().level);
+
+        ip.printInstructionListingHeader();
+
+        for (Instruction i = block.next(); i != null; i = i.next()) {
+            if (!liveOnly || i.isLive()) {
+                ip.printInstructionListing(i);
+            }
+        }
+        out.println();
+
+    }
+
+    private static void printFrameState(FrameState newFrameState, LogStream out) {
+        int startPosition = out.position();
+        if (newFrameState.stackEmpty()) {
+          out.print("empty stack");
+        } else {
+          out.print("stack [");
+          int i = 0;
+          while (i < newFrameState.stackSize()) {
+            if (i > 0) {
+                out.print(", ");
+            }
+            Value value = newFrameState.stackAt(i);
+            out.print(i + ":" + Util.valueString(value));
+            if (value == null) {
+                i++;
+            } else {
+                i += value.kind.sizeInSlots();
+                if (value instanceof Phi) {
+                    Phi phi = (Phi) value;
+                    if (phi.operand() != null) {
+                        out.print(" ");
+                        out.print(phi.operand().toString());
+                    }
+                }
+            }
+          }
+          out.print(']');
+        }
+        if (newFrameState.locksSize() != 0) {
+            // print out the lines on the line below this
+            // one at the same indentation level.
+            out.println();
+            out.fillTo(startPosition, ' ');
+            out.print("locks [");
+            for (int i = 0; i < newFrameState.locksSize(); i++) {
+                Value value = newFrameState.lockAt(i);
+                if (i > 0) {
+                    out.print(", ");
+                }
+                out.print(i + ":");
+                if (value == null) {
+                    // synchronized methods push null on the lock stack
+                    out.print("this");
+                } else {
+                    out.print(Util.valueString(value));
+                }
+            }
+            out.print("]");
+        }
+    }
+}