Do not patch IC in deoptimized code.

src/ic/ic.h

Index: src/ic/ic.h
diff --git a/src/ic/ic.h b/src/ic/ic.h
index 9eea509ec7723515a4bfa2bf91d23b4d4f6eb7fd..b63e7c727b438c6500a0b200bcf8e7d1f25c0be9 100644
--- a/src/ic/ic.h
+++ b/src/ic/ic.h
@@ -134,7 +134,9 @@ class IC {
   Code* GetOriginalCode() const;
 
   bool AddressIsOptimizedCode() const;
-  bool AddressIsDeoptimizedCode() const;
+  inline bool AddressIsDeoptimizedCode() const;
+  inline static bool AddressIsDeoptimizedCode(Isolate* isolate,
+                                              Address address);
 
   // Set the call-site target.
   inline void set_target(Code* code);
@@ -252,6 +254,8 @@ class IC {
 
   inline Code* get_host();
 
+  inline static bool CheckForLazyDeopt(Isolate* isolate, Address address);

[Jakob Kummerow, 2015/05/22 16:18:24]

unused?

+
  private:
   inline Code* raw_target() const;
   inline ConstantPoolArray* constant_pool() const;