Fixed spec violation of storing to length of a frozen object.

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index d1ea51bf8bc3b435acab16642190cf0a04a73cfc..779e77edc0dc2120eb2d78bee3cf68481f37a784 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -933,70 +933,6 @@ void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
 }
 
 
-void StoreArrayLengthStub::Generate(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- rax    : value
-  //  -- rcx    : key
-  //  -- rdx    : receiver
-  //  -- rsp[0] : return address
-  // -----------------------------------
-  //
-  // This accepts as a receiver anything JSArray::SetElementsLength accepts
-  // (currently anything except for external arrays which means anything with
-  // elements of FixedArray type).  Value must be a number, but only smis are
-  // accepted as the most common case.
-
-  Label miss;
-
-  Register receiver = rdx;
-  Register value = rax;
-  Register scratch = rbx;
-  if (kind() == Code::KEYED_STORE_IC) {
-    __ Cmp(rcx, masm->isolate()->factory()->length_string());
-    __ j(not_equal, &miss);
-  }
-
-  // Check that the receiver isn't a smi.
-  __ JumpIfSmi(receiver, &miss);
-
-  // Check that the object is a JS array.
-  __ CmpObjectType(receiver, JS_ARRAY_TYPE, scratch);
-  __ j(not_equal, &miss);
-
-  // Check that elements are FixedArray.
-  // We rely on StoreIC_ArrayLength below to deal with all types of
-  // fast elements (including COW).
-  __ movp(scratch, FieldOperand(receiver, JSArray::kElementsOffset));
-  __ CmpObjectType(scratch, FIXED_ARRAY_TYPE, scratch);
-  __ j(not_equal, &miss);
-
-  // Check that the array has fast properties, otherwise the length
-  // property might have been redefined.
-  __ movp(scratch, FieldOperand(receiver, JSArray::kPropertiesOffset));
-  __ CompareRoot(FieldOperand(scratch, FixedArray::kMapOffset),
-                 Heap::kHashTableMapRootIndex);
-  __ j(equal, &miss);
-
-  // Check that value is a smi.
-  __ JumpIfNotSmi(value, &miss);
-
-  // Prepare tail call to StoreIC_ArrayLength.
-  __ PopReturnAddressTo(scratch);
-  __ push(receiver);
-  __ push(value);
-  __ PushReturnAddressFrom(scratch);
-
-  ExternalReference ref =
-      ExternalReference(IC_Utility(IC::kStoreIC_ArrayLength), masm->isolate());
-  __ TailCallExternalReference(ref, 2, 1);
-
-  __ bind(&miss);
-
-  StubCompiler::TailCallBuiltin(
-      masm, BaseLoadStoreStubCompiler::MissBuiltin(kind()));
-}
-
-
 void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) {
   // The key is in rdx and the parameter count is in rax.