--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/Logger.java	Mon Aug 02 15:44:38 2010 -0700
@@ -0,0 +1,86 @@
+package com.sun.hotspot.c1x;
+
+import java.lang.reflect.*;
+import java.util.*;
+
+public class Logger {
+
+    private static final boolean ENABLED = true;
+    private static final int SPACING = 2;
+    private static Deque<Boolean> openStack = new LinkedList<Boolean>();
+    private static boolean open = false;
+    private static int level = 0;
+
+    public static void log(String message) {
+        if (ENABLED) {
+            if (open) {
+                System.out.println("...");
+                open = false;
+            }
+            System.out.print(space(level));
+            System.out.println(message);
+        }
+    }
+
+    public static void startScope(String message) {
+        if (ENABLED) {
+            if (open) {
+                System.out.println("...");
+                open = false;
+            }
+            System.out.print(space(level));
+            System.out.print(message);
+            openStack.push(open);
+            open = true;
+            level++;
+        }
+    }
+
+    public static void endScope(String message) {
+        if (ENABLED) {
+            level--;
+            if (open)
+                System.out.println(message);
+            else
+                System.out.println(space(level) + "..." + message);
+            open = openStack.pop();
+        }
+    }
+
+    private static String[] spaces = new String[50];
+
+    private static String space(int count) {
+        assert count >= 0;
+        String result;
+        if (count >= spaces.length || spaces[count] == null) {
+            StringBuilder str = new StringBuilder();
+            for (int i = 0; i < count * SPACING; i++)
+                str.append(' ');
+            result = str.toString();
+            if (count < spaces.length)
+                spaces[count] = result;
+        } else {
+            result = spaces[count];
+        }
+        return result;
+    }
+
+    public static String pretty(Object value) {
+        if (value instanceof Method) {
+            return "method \"" + ((Method) value).getName() + "\"";
+        } else if (value instanceof Class<?>) {
+            return "class \"" + ((Class<?>) value).getSimpleName() + "\"";
+        } else if (value instanceof Void) {
+            return "void";
+        } else if (value instanceof Integer) {
+            if ((Integer) value < 10)
+                return value.toString();
+            return value + " (0x" + Integer.toHexString((Integer) value) + ")";
+        } else if (value instanceof Long) {
+            if ((Long) value < 10)
+                return value + "l";
+            return value + "l (0x" + Long.toHexString((Long) value) + "l)";
+        }
+        return value == null ? "null" : value.toString();
+    }
+}