1 files changed, 32 insertions, 6 deletions
diff --git a/src/zap/zapimage.h b/src/zap/zapimage.h
index ba4bbc5cfc..f0bcbcb033 100644
--- a/src/zap/zapimage.h
+++ b/src/zap/zapimage.h
@@ -338,10 +338,20 @@ private:
 
 public:
     enum CompileStatus {
-        LOOKUP_FAILED   = -2,  COMPILE_FAILED   = -1,      // Failure
-        NOT_COMPILED    =  0,  COMPILE_EXCLUDED =  1,      // Info
-        COMPILE_SUCCEED = 10,  ALREADY_COMPILED = 11
-    };      // Success
+        // Failure status values are negative
+        LOOKUP_FAILED    = -2,
+        COMPILE_FAILED   = -1,
+
+        // Info status values are [0..9]
+        NOT_COMPILED          =  0,
+        COMPILE_EXCLUDED      =  1,
+        COMPILE_HOT_EXCLUDED  =  2,
+        COMPILE_COLD_EXCLUDED =  3,
+
+        // Successful status values are 10 or greater
+        COMPILE_SUCCEED  = 10,
+        ALREADY_COMPILED = 11
+    };
 
 private:
     // A hash table entry that contains the profile infomation and the CompileStatus for a given method
@@ -376,8 +386,24 @@ private:
             return (count_t)k;
         }
 
-        static const element_t Null() { LIMITED_METHOD_CONTRACT; ProfileDataHashEntry e; e.pos = 0; e.size = 0; e.md = 0; return e; } // Assuming method profile data cannot start from position 0.
-        static bool IsNull(const element_t &e) { LIMITED_METHOD_CONTRACT; return e.pos == 0; }
+        static const element_t Null()
+        {
+            LIMITED_METHOD_CONTRACT; 
+            ProfileDataHashEntry e; 
+            e.md = 0; 
+            e.size = 0; 
+            e.pos = 0;
+            e.flags = 0;
+            e.status = NOT_COMPILED;
+            return e;
+        }
+
+        static bool IsNull(const element_t &e)
+        {
+            LIMITED_METHOD_CONTRACT;
+            // returns true if both md and pos are zero
+            return (e.md == 0) && (e.pos == 0);
+        }
     };
     typedef SHash<ProfileDataHashTraits> ProfileDataHashTable;