diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 577ac6332c..9e5cc378b9 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -2905,7 +2905,7 @@ void InstanceofStub::Generate(MacroAssembler* masm) {
   const Register prototype = r4;  // Prototype of the function.
   const Register scratch = r2;
   Label slow, loop, is_instance, is_not_instance, not_js_object;
-  if (!args_in_registers()) {
+  if (!HasArgsInRegisters()) {
     __ ldr(object, MemOperand(sp, 1 * kPointerSize));
     __ ldr(function, MemOperand(sp, 0));
   }
@@ -2923,7 +2923,7 @@ void InstanceofStub::Generate(MacroAssembler* masm) {
   __ cmp(map, ip);
   __ b(ne, &miss);
   __ LoadRoot(r0, Heap::kInstanceofCacheAnswerRootIndex);
-  __ Ret(args_in_registers() ? 0 : 2);
+  __ Ret(HasArgsInRegisters() ? 0 : 2);
 
   __ bind(&miss);
   __ TryGetFunctionPrototype(function, prototype, scratch, &slow);
@@ -2953,12 +2953,12 @@ void InstanceofStub::Generate(MacroAssembler* masm) {
   __ bind(&is_instance);
   __ mov(r0, Operand(Smi::FromInt(0)));
   __ StoreRoot(r0, Heap::kInstanceofCacheAnswerRootIndex);
-  __ Ret(args_in_registers() ? 0 : 2);
+  __ Ret(HasArgsInRegisters() ? 0 : 2);
 
   __ bind(&is_not_instance);
   __ mov(r0, Operand(Smi::FromInt(1)));
   __ StoreRoot(r0, Heap::kInstanceofCacheAnswerRootIndex);
-  __ Ret(args_in_registers() ? 0 : 2);
+  __ Ret(HasArgsInRegisters() ? 0 : 2);
 
   Label object_not_null, object_not_null_or_smi;
   __ bind(&not_js_object);
@@ -2972,22 +2972,22 @@ void InstanceofStub::Generate(MacroAssembler* masm) {
   __ cmp(scratch, Operand(Factory::null_value()));
   __ b(ne, &object_not_null);
   __ mov(r0, Operand(Smi::FromInt(1)));
-  __ Ret(args_in_registers() ? 0 : 2);
+  __ Ret(HasArgsInRegisters() ? 0 : 2);
 
   __ bind(&object_not_null);
   // Smi values are not instances of anything.
   __ BranchOnNotSmi(object, &object_not_null_or_smi);
   __ mov(r0, Operand(Smi::FromInt(1)));
-  __ Ret(args_in_registers() ? 0 : 2);
+  __ Ret(HasArgsInRegisters() ? 0 : 2);
 
   __ bind(&object_not_null_or_smi);
   // String values are not instances of anything.
   __ IsObjectJSStringType(object, scratch, &slow);
   __ mov(r0, Operand(Smi::FromInt(1)));
-  __ Ret(args_in_registers() ? 0 : 2);
+  __ Ret(HasArgsInRegisters() ? 0 : 2);
 
   // Slow-case.  Tail call builtin.
-  if (args_in_registers()) {
+  if (HasArgsInRegisters()) {
     __ Push(r0, r1);
   }
   __ bind(&slow);
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 87efc92c8d..4ab918d9b6 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1306,6 +1306,14 @@ LInstruction* LChunkBuilder::DoInstanceOf(HInstanceOf* instr) {
 }
 
 
+LInstruction* LChunkBuilder::DoInstanceOfKnownGlobal(
+    HInstanceOfKnownGlobal* instr) {
+  LInstruction* result =
+      new LInstanceOfKnownGlobal(UseFixed(instr->value(), r0));
+  return MarkAsCall(DefineFixed(result, r0), instr);
+}
+
+
 LInstruction* LChunkBuilder::DoApplyArguments(HApplyArguments* instr) {
   LOperand* function = UseFixed(instr->function(), r1);
   LOperand* receiver = UseFixed(instr->receiver(), r0);
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index 2f8cc1c7f3..cc461d0ff6 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -62,6 +62,7 @@ class Translation;
 //     LDivI
 //     LInstanceOf
 //     LInstanceOfAndBranch
+//     LInstanceOfKnownGlobal
 //     LLoadKeyedFastElement
 //     LLoadKeyedGeneric
 //     LModI
@@ -204,6 +205,7 @@ class Translation;
   V(Goto)                                       \
   V(InstanceOf)                                 \
   V(InstanceOfAndBranch)                        \
+  V(InstanceOfKnownGlobal)                      \
   V(Integer32ToDouble)                          \
   V(IsNull)                                     \
   V(IsNullAndBranch)                            \
@@ -993,6 +995,19 @@ class LInstanceOfAndBranch: public LInstanceOf {
 };
 
 
+class LInstanceOfKnownGlobal: public LUnaryOperation {
+ public:
+  explicit LInstanceOfKnownGlobal(LOperand* left)
+      : LUnaryOperation(left) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(InstanceOfKnownGlobal,
+                               "instance-of-known-global")
+  DECLARE_HYDROGEN_ACCESSOR(InstanceOfKnownGlobal)
+
+  Handle<JSFunction> function() const { return hydrogen()->function(); }
+};
+
+
 class LBoundsCheck: public LBinaryOperation {
  public:
   LBoundsCheck(LOperand* index, LOperand* length)
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index bb2461ced2..711d0ca3c8 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -1431,6 +1431,10 @@ void LCodeGen::DoInstanceOfAndBranch(LInstanceOfAndBranch* instr) {
 }
 
 
+void LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) {
+  Abort("DoInstanceOfKnownGlobal unimplemented.");
+}
+
 
 static Condition ComputeCompareCondition(Token::Value op) {
   switch (op) {
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 1b0d8b0b6f..1552b7a0e8 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -197,4 +197,34 @@ void ICCompareStub::Generate(MacroAssembler* masm) {
 }
 
 
+const char* InstanceofStub::GetName() {
+  if (name_ != NULL) return name_;
+  const int kMaxNameLength = 100;
+  name_ = Bootstrapper::AllocateAutoDeletedArray(kMaxNameLength);
+  if (name_ == NULL) return "OOM";
+
+  const char* args = "";
+  if (HasArgsInRegisters()) {
+    args = "_REGS";
+  }
+
+  const char* inline_check = "";
+  if (HasCallSiteInlineCheck()) {
+    inline_check = "_INLINE";
+  }
+
+  const char* return_true_false_object = "";
+  if (ReturnTrueFalseObject()) {
+    return_true_false_object = "_TRUEFALSE";
+  }
+
+  OS::SNPrintF(Vector<char>(name_, kMaxNameLength),
+               "InstanceofStub%s%s%s",
+               args,
+               inline_check,
+               return_true_false_object);
+  return name_;
+}
+
+
 } }  // namespace v8::internal
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index e51a6736a4..f14013d925 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -5182,36 +5182,6 @@ Register InstanceofStub::left() { return eax; }
 Register InstanceofStub::right() { return edx; }
 
 
-const char* InstanceofStub::GetName() {
-  if (name_ != NULL) return name_;
-  const int kMaxNameLength = 100;
-  name_ = Bootstrapper::AllocateAutoDeletedArray(kMaxNameLength);
-  if (name_ == NULL) return "OOM";
-
-  const char* args = "";
-  if (HasArgsInRegisters()) {
-    args = "_REGS";
-  }
-
-  const char* inline_check = "";
-  if (HasCallSiteInlineCheck()) {
-    inline_check = "_INLINE";
-  }
-
-  const char* return_true_false_object = "";
-  if (ReturnTrueFalseObject()) {
-    return_true_false_object = "_TRUEFALSE";
-  }
-
-  OS::SNPrintF(Vector<char>(name_, kMaxNameLength),
-               "InstanceofStub%s%s%s",
-               args,
-               inline_check,
-               return_true_false_object);
-  return name_;
-}
-
-
 int CompareStub::MinorKey() {
   // Encode the three parameters in a unique 16 bit value. To avoid duplicate
   // stubs the never NaN NaN condition is only taken into account if the