Copy-on-write arrays.

src/arm/stub-cache-arm.cc

Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
index fa90ca7d11f1b8e1f37ee218d40c577a1a129624..2a7c22d744a4fe89dd409856b5d1e934977a087b 100644
--- a/src/arm/stub-cache-arm.cc
+++ b/src/arm/stub-cache-arm.cc
@@ -1297,11 +1297,6 @@ Object* CallStubCompiler::CompileArrayPushCall(Object* object,
   // Check that the maps haven't changed.
   CheckPrototypes(JSObject::cast(object), r1, holder, r3, r0, r4, name, &miss);
 
-  if (object->IsGlobalObject()) {
-    __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset));
-    __ str(r3, MemOperand(sp, argc * kPointerSize));
-  }
-
   __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPush),
                                argc + 1,
                                1);
@@ -1349,11 +1344,6 @@ Object* CallStubCompiler::CompileArrayPopCall(Object* object,
   // Check that the maps haven't changed.
   CheckPrototypes(JSObject::cast(object), r1, holder, r3, r0, r4, name, &miss);
 
-  if (object->IsGlobalObject()) {
-    __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset));
-    __ str(r3, MemOperand(sp, argc * kPointerSize));
-  }
-
   __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPop),
                                argc + 1,
                                1);