Track possible invalidation reasons for debugging.

GraalPrintfInvaludationTracking.diff

diff --git a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/FrameWithoutBoxing.java b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/FrameWithoutBoxing.java
index a7088a8..c9d9b8a 100644
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/FrameWithoutBoxing.java
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/FrameWithoutBoxing.java
@@ -294,6 +294,7 @@ public final class FrameWithoutBoxing implements VirtualFrame, MaterializedFrame
     }
 
     private boolean resize() {
+        System.out.println("FrameWB.resize");
         int oldSize = tags.length;
         int newSize = descriptor.getSize();
         if (newSize > oldSize) {
diff --git a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedAssumption.java b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedAssumption.java
index 49eea97..0afd42f 100644
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedAssumption.java
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedAssumption.java
@@ -47,6 +47,7 @@ public final class OptimizedAssumption extends AbstractAssumption {
     @Override
     public synchronized void invalidate() {
         if (isValid) {
+            System.out.println("Assumption invalidated");
             if (dependentInstalledCode != null) {
                 for (WeakReference<InstalledCode> installedCodeReference : dependentInstalledCode) {
                     InstalledCode installedCode = installedCodeReference.get();
diff --git a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java
index 313fa00..060b9c3 100644
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java
@@ -94,6 +94,7 @@ public final class OptimizedCallTarget extends DefaultCallTarget implements Fram
             try {
                 return installedCode.execute(this, caller, args);
             } catch (InvalidInstalledCodeException ex) {
+                System.out.println("OptCallTarget InvalidInstalledCodeException");
                 return compiledCodeInvalidated(caller, args);
             }
         } else {
@@ -111,6 +112,7 @@ public final class OptimizedCallTarget extends DefaultCallTarget implements Fram
     }
 
     private void invalidate() {
+        System.out.println("OptCallTarget invalidated");
         InstalledCode m = this.installedCode;
         if (m != null) {
             CompilerAsserts.neverPartOfCompilation();
@@ -232,6 +234,7 @@ public final class OptimizedCallTarget extends DefaultCallTarget implements Fram
 
     @Override
     public void nodeReplaced() {
+        System.out.println("OptCallTarget nodeReplaced");
         compilationProfile.reportNodeReplaced();
         invalidate();
     }
diff --git a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java
index 2c64012..c726b3f 100644
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java
@@ -58,6 +58,7 @@ public final class FrameSlot implements Cloneable {
     public void setKind(final FrameSlotKind kind) {
         if (this.kind != kind) {
             CompilerDirectives.transferToInterpreter();
+            System.out.println("FrameSlot.setKind: " + identifier.toString());
             this.kind = kind;
             this.descriptor.updateVersion();
         }
diff --git a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultAssumption.java b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultAssumption.java
index b60b4a5..1045eb5 100644
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultAssumption.java
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultAssumption.java
@@ -41,6 +41,7 @@ public final class DefaultAssumption extends AbstractAssumption {
 
     @Override
     public void invalidate() {
+        System.out.println("Assumption invalidated");
         isValid = false;
     }
 
diff --git a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java
index 56de8ce..34b8066 100644
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java
@@ -173,6 +173,7 @@ public abstract class Node implements Cloneable {
      */
     public final <T extends Node> T replace(T newNode, String reason) {
         CompilerDirectives.transferToInterpreter();
+        System.out.println("replace: " + reason + ".");
         if (this.getParent() == null) {
             throw new IllegalStateException("This node cannot be replaced, because it does not yet have a parent.");
         }
diff --git a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/SlowPathException.java b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/SlowPathException.java
index e8ca755..ba5723e 100644
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/SlowPathException.java
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/SlowPathException.java
@@ -39,6 +39,7 @@ public class SlowPathException extends Exception {
      */
     public SlowPathException() {
         CompilerDirectives.transferToInterpreter();
+        System.out.println("SlowPathException");
     }
 
     /**
@@ -47,6 +48,7 @@ public class SlowPathException extends Exception {
     public SlowPathException(String message, Throwable cause) {
         super(message, cause);
         CompilerDirectives.transferToInterpreter();
+        System.out.println("SlowPathException");
     }
 
     /**
@@ -55,6 +57,7 @@ public class SlowPathException extends Exception {
     public SlowPathException(String message) {
         super(message);
         CompilerDirectives.transferToInterpreter();
+        System.out.println("SlowPathException");
     }
 
     /**
@@ -63,6 +66,7 @@ public class SlowPathException extends Exception {
     public SlowPathException(Throwable cause) {
         super(cause);
         CompilerDirectives.transferToInterpreter();
+        System.out.println("SlowPathException");
     }
 
     /**
diff --git a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java
index 94db799..aec5000 100644
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java
@@ -40,6 +40,7 @@ public final class BranchProfile {
     public void enter() {
         if (!visited) {
             CompilerDirectives.transferToInterpreterAndInvalidate();
+            System.out.println("BranchProfile.enter");
             visited = true;
         }
     }