Introduce a code stub version of Array.prototype.push

src/deoptimizer.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_DEOPTIMIZER_H_
 #define V8_DEOPTIMIZER_H_
 
 #include "src/allocation.h"
 #include "src/macro-assembler.h"
 
@@ skipping 299 matching lines @@
   // from given native context.
   virtual void EnterContext(Context* context) = 0;
 
   virtual void VisitFunction(JSFunction* function) = 0;
 
   // Function which is called after iteration of all optimized functions
   // from given native context.
   virtual void LeaveContext(Context* context) = 0;
 };
 
-
 #define DEOPT_MESSAGES_LIST(V)                                                 \
   V(kAccessCheck, "Access check needed")                                       \
   V(kNoReason, "no reason")                                                    \
   V(kConstantGlobalVariableAssignment, "Constant global variable assignment")  \
   V(kConversionOverflow, "conversion overflow")                                \
   V(kDivisionByZero, "division by zero")                                       \
   V(kElementsKindUnhandledInKeyedLoadGenericStub,                              \
     "ElementsKind unhandled in KeyedLoadGenericStub")                          \
   V(kExpectedHeapNumber, "Expected heap number")                               \
   V(kExpectedSmi, "Expected smi")                                              \
   V(kForcedDeoptToRuntime, "Forced deopt to runtime")                          \
   V(kHole, "hole")                                                             \
   V(kHoleyArrayDespitePackedElements_kindFeedback,                             \
     "Holey array despite packed elements_kind feedback")                       \
   V(kInstanceMigrationFailed, "instance migration failed")                     \
   V(kInsufficientTypeFeedbackForCallWithArguments,                             \
     "Insufficient type feedback for call with arguments")                      \
+  V(kFastArrayPushFailed, "Falling off the fast path for FastArrayPush")       \
   V(kInsufficientTypeFeedbackForCombinedTypeOfBinaryOperation,                 \
     "Insufficient type feedback for combined type of binary operation")        \
   V(kInsufficientTypeFeedbackForGenericNamedAccess,                            \
     "Insufficient type feedback for generic named access")                     \
   V(kInsufficientTypeFeedbackForKeyedLoad,                                     \
     "Insufficient type feedback for keyed load")                               \
   V(kInsufficientTypeFeedbackForKeyedStore,                                    \
     "Insufficient type feedback for keyed store")                              \
   V(kInsufficientTypeFeedbackForLHSOfBinaryOperation,                          \
     "Insufficient type feedback for LHS of binary operation")                  \
@@ skipping 43 matching lines @@
   V(kUnknownMapInPolymorphicCall, "Unknown map in polymorphic call")           \
   V(kUnknownMapInPolymorphicElementAccess,                                     \
     "Unknown map in polymorphic element access")                               \
   V(kUnknownMap, "Unknown map")                                                \
   V(kValueMismatch, "value mismatch")                                          \
   V(kWrongInstanceType, "wrong instance type")                                 \
   V(kWrongMap, "wrong map")                                                    \
   V(kUndefinedOrNullInForIn, "null or undefined in for-in")                    \
   V(kUndefinedOrNullInToObject, "null or undefined in ToObject")
 
-
 class Deoptimizer : public Malloced {
  public:
   enum BailoutType { EAGER, LAZY, SOFT, kLastBailoutType = SOFT };
 
 #define DEOPT_MESSAGES_CONSTANTS(C, T) C,
   enum DeoptReason {
     DEOPT_MESSAGES_LIST(DEOPT_MESSAGES_CONSTANTS) kLastDeoptReason
   };
 #undef DEOPT_MESSAGES_CONSTANTS
   static const char* GetDeoptReason(DeoptReason deopt_reason);
@@ skipping 703 matching lines @@
   std::vector<Handle<Object> > expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEOPTIMIZER_H_