diff -r 513a5298c1dd -r e484fe2abebd src/share/vm/runtime/arguments.cpp
--- a/src/share/vm/runtime/arguments.cpp	Tue May 14 17:33:07 2013 +0000
+++ b/src/share/vm/runtime/arguments.cpp	Thu May 16 13:47:55 2013 -0700
@@ -1089,6 +1089,10 @@
   if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) {
     FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5);
   }
+  if (!UseInterpreter) { // -Xcomp
+    Tier3InvokeNotifyFreqLog = 0;
+    Tier4InvocationThreshold = 0;
+  }
 }
 
 #if INCLUDE_ALL_GCS
@@ -1669,6 +1673,20 @@
 // Aggressive optimization flags  -XX:+AggressiveOpts
 void Arguments::set_aggressive_opts_flags() {
 #ifdef COMPILER2
+  if (AggressiveUnboxing) {
+    if (FLAG_IS_DEFAULT(EliminateAutoBox)) {
+      FLAG_SET_DEFAULT(EliminateAutoBox, true);
+    } else if (!EliminateAutoBox) {
+      // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled");
+      AggressiveUnboxing = false;
+    }
+    if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) {
+      FLAG_SET_DEFAULT(DoEscapeAnalysis, true);
+    } else if (!DoEscapeAnalysis) {
+      // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled");
+      AggressiveUnboxing = false;
+    }
+  }
   if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) {
     if (FLAG_IS_DEFAULT(EliminateAutoBox)) {
       FLAG_SET_DEFAULT(EliminateAutoBox, true);