Move V8 to external/v8

Change-Id: If68025d67453785a651c5dfb34fad298c16676a4

1 files changed, 1490 insertions, 0 deletions

diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
new file mode 100644
index 00000000..8282655f
--- /dev/null
+++ b/src/arm/stub-cache-arm.cc
@@ -0,0 +1,1490 @@
+// Copyright 2006-2009 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "v8.h"
+
+#include "ic-inl.h"
+#include "codegen-inl.h"
+#include "stub-cache.h"
+
+namespace v8 {
+namespace internal {
+
+#define __ ACCESS_MASM(masm)
+
+
+static void ProbeTable(MacroAssembler* masm,
+                       Code::Flags flags,
+                       StubCache::Table table,
+                       Register name,
+                       Register offset) {
+  ExternalReference key_offset(SCTableReference::keyReference(table));
+  ExternalReference value_offset(SCTableReference::valueReference(table));
+
+  Label miss;
+
+  // Save the offset on the stack.
+  __ push(offset);
+
+  // Check that the key in the entry matches the name.
+  __ mov(ip, Operand(key_offset));
+  __ ldr(ip, MemOperand(ip, offset, LSL, 1));
+  __ cmp(name, Operand(ip));
+  __ b(ne, &miss);
+
+  // Get the code entry from the cache.
+  __ mov(ip, Operand(value_offset));
+  __ ldr(offset, MemOperand(ip, offset, LSL, 1));
+
+  // Check that the flags match what we're looking for.
+  __ ldr(offset, FieldMemOperand(offset, Code::kFlagsOffset));
+  __ and_(offset, offset, Operand(~Code::kFlagsNotUsedInLookup));
+  __ cmp(offset, Operand(flags));
+  __ b(ne, &miss);
+
+  // Restore offset and re-load code entry from cache.
+  __ pop(offset);
+  __ mov(ip, Operand(value_offset));
+  __ ldr(offset, MemOperand(ip, offset, LSL, 1));
+
+  // Jump to the first instruction in the code stub.
+  __ add(offset, offset, Operand(Code::kHeaderSize - kHeapObjectTag));
+  __ Jump(offset);
+
+  // Miss: Restore offset and fall through.
+  __ bind(&miss);
+  __ pop(offset);
+}
+
+
+void StubCache::GenerateProbe(MacroAssembler* masm,
+                              Code::Flags flags,
+                              Register receiver,
+                              Register name,
+                              Register scratch,
+                              Register extra) {
+  Label miss;
+
+  // Make sure that code is valid. The shifting code relies on the
+  // entry size being 8.
+  ASSERT(sizeof(Entry) == 8);
+
+  // Make sure the flags does not name a specific type.
+  ASSERT(Code::ExtractTypeFromFlags(flags) == 0);
+
+  // Make sure that there are no register conflicts.
+  ASSERT(!scratch.is(receiver));
+  ASSERT(!scratch.is(name));
+
+  // Check that the receiver isn't a smi.
+  __ tst(receiver, Operand(kSmiTagMask));
+  __ b(eq, &miss);
+
+  // Get the map of the receiver and compute the hash.
+  __ ldr(scratch, FieldMemOperand(name, String::kLengthOffset));
+  __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ add(scratch, scratch, Operand(ip));
+  __ eor(scratch, scratch, Operand(flags));
+  __ and_(scratch,
+          scratch,
+          Operand((kPrimaryTableSize - 1) << kHeapObjectTagSize));
+
+  // Probe the primary table.
+  ProbeTable(masm, flags, kPrimary, name, scratch);
+
+  // Primary miss: Compute hash for secondary probe.
+  __ sub(scratch, scratch, Operand(name));
+  __ add(scratch, scratch, Operand(flags));
+  __ and_(scratch,
+          scratch,
+          Operand((kSecondaryTableSize - 1) << kHeapObjectTagSize));
+
+  // Probe the secondary table.
+  ProbeTable(masm, flags, kSecondary, name, scratch);
+
+  // Cache miss: Fall-through and let caller handle the miss by
+  // entering the runtime system.
+  __ bind(&miss);
+}
+
+
+void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm,
+                                                       int index,
+                                                       Register prototype) {
+  // Load the global or builtins object from the current context.
+  __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
+  // Load the global context from the global or builtins object.
+  __ ldr(prototype,
+         FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset));
+  // Load the function from the global context.
+  __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index)));
+  // Load the initial map.  The global functions all have initial maps.
+  __ ldr(prototype,
+         FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
+  // Load the prototype from the initial map.
+  __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
+}
+
+
+// Load a fast property out of a holder object (src). In-object properties
+// are loaded directly otherwise the property is loaded from the properties
+// fixed array.
+void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm,
+                                            Register dst, Register src,
+                                            JSObject* holder, int index) {
+  // Adjust for the number of properties stored in the holder.
+  index -= holder->map()->inobject_properties();
+  if (index < 0) {
+    // Get the property straight out of the holder.
+    int offset = holder->map()->instance_size() + (index * kPointerSize);
+    __ ldr(dst, FieldMemOperand(src, offset));
+  } else {
+    // Calculate the offset into the properties array.
+    int offset = index * kPointerSize + FixedArray::kHeaderSize;
+    __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset));
+    __ ldr(dst, FieldMemOperand(dst, offset));
+  }
+}
+
+
+void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm,
+                                           Register receiver,
+                                           Register scratch,
+                                           Label* miss_label) {
+  // Check that the receiver isn't a smi.
+  __ tst(receiver, Operand(kSmiTagMask));
+  __ b(eq, miss_label);
+
+  // Check that the object is a JS array.
+  __ CompareObjectType(receiver, scratch, scratch, JS_ARRAY_TYPE);
+  __ b(ne, miss_label);
+
+  // Load length directly from the JS array.
+  __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset));
+  __ Ret();
+}
+
+
+// Generate code to check if an object is a string.  If the object is
+// a string, the map's instance type is left in the scratch1 register.
+static void GenerateStringCheck(MacroAssembler* masm,
+                                Register receiver,
+                                Register scratch1,
+                                Register scratch2,
+                                Label* smi,
+                                Label* non_string_object) {
+  // Check that the receiver isn't a smi.
+  __ tst(receiver, Operand(kSmiTagMask));
+  __ b(eq, smi);
+
+  // Check that the object is a string.
+  __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ ldrb(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset));
+  __ and_(scratch2, scratch1, Operand(kIsNotStringMask));
+  // The cast is to resolve the overload for the argument of 0x0.
+  __ cmp(scratch2, Operand(static_cast<int32_t>(kStringTag)));
+  __ b(ne, non_string_object);
+}
+
+
+// Generate code to load the length from a string object and return the length.
+// If the receiver object is not a string or a wrapped string object the
+// execution continues at the miss label. The register containing the
+// receiver is potentially clobbered.
+void StubCompiler::GenerateLoadStringLength2(MacroAssembler* masm,
+                                             Register receiver,
+                                             Register scratch1,
+                                             Register scratch2,
+                                             Label* miss) {
+  Label check_string, check_wrapper;
+
+  __ bind(&check_string);
+  // Check if the object is a string leaving the instance type in the
+  // scratch1 register.
+  GenerateStringCheck(masm, receiver, scratch1, scratch2,
+                      miss, &check_wrapper);
+
+  // Load length directly from the string.
+  __ and_(scratch1, scratch1, Operand(kStringSizeMask));
+  __ add(scratch1, scratch1, Operand(String::kHashShift));
+  __ ldr(r0, FieldMemOperand(receiver, String::kLengthOffset));
+  __ mov(r0, Operand(r0, LSR, scratch1));
+  __ mov(r0, Operand(r0, LSL, kSmiTagSize));
+  __ Ret();
+
+  // Check if the object is a JSValue wrapper.
+  __ bind(&check_wrapper);
+  __ cmp(scratch1, Operand(JS_VALUE_TYPE));
+  __ b(ne, miss);
+
+  // Unwrap the value in place and check if the wrapped value is a string.
+  __ ldr(receiver, FieldMemOperand(receiver, JSValue::kValueOffset));
+  __ b(&check_string);
+}
+
+
+void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm,
+                                                 Register receiver,
+                                                 Register scratch1,
+                                                 Register scratch2,
+                                                 Label* miss_label) {
+  __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label);
+  __ mov(r0, scratch1);
+  __ Ret();
+}
+
+
+// Generate StoreField code, value is passed in r0 register.
+// After executing generated code, the receiver_reg and name_reg
+// may be clobbered.
+void StubCompiler::GenerateStoreField(MacroAssembler* masm,
+                                      Builtins::Name storage_extend,
+                                      JSObject* object,
+                                      int index,
+                                      Map* transition,
+                                      Register receiver_reg,
+                                      Register name_reg,
+                                      Register scratch,
+                                      Label* miss_label) {
+  // r0 : value
+  Label exit;
+
+  // Check that the receiver isn't a smi.
+  __ tst(receiver_reg, Operand(kSmiTagMask));
+  __ b(eq, miss_label);
+
+  // Check that the map of the receiver hasn't changed.
+  __ ldr(scratch, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+  __ cmp(scratch, Operand(Handle<Map>(object->map())));
+  __ b(ne, miss_label);
+
+  // Perform global security token check if needed.
+  if (object->IsJSGlobalProxy()) {
+    __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label);
+  }
+
+  // Stub never generated for non-global objects that require access
+  // checks.
+  ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
+
+  // Perform map transition for the receiver if necessary.
+  if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) {
+    // The properties must be extended before we can store the value.
+    // We jump to a runtime call that extends the properties array.
+    __ mov(r2, Operand(Handle<Map>(transition)));
+    // Please note, if we implement keyed store for arm we need
+    // to call the Builtins::KeyedStoreIC_ExtendStorage.
+    Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_ExtendStorage));
+    __ Jump(ic, RelocInfo::CODE_TARGET);
+    return;
+  }
+
+  if (transition != NULL) {
+    // Update the map of the object; no write barrier updating is
+    // needed because the map is never in new space.
+    __ mov(ip, Operand(Handle<Map>(transition)));
+    __ str(ip, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
+  }
+
+  // Adjust for the number of properties stored in the object. Even in the
+  // face of a transition we can use the old map here because the size of the
+  // object and the number of in-object properties is not going to change.
+  index -= object->map()->inobject_properties();
+
+  if (index < 0) {
+    // Set the property straight into the object.
+    int offset = object->map()->instance_size() + (index * kPointerSize);
+    __ str(r0, FieldMemOperand(receiver_reg, offset));
+
+    // Skip updating write barrier if storing a smi.
+    __ tst(r0, Operand(kSmiTagMask));
+    __ b(eq, &exit);
+
+    // Update the write barrier for the array address.
+    // Pass the value being stored in the now unused name_reg.
+    __ mov(name_reg, Operand(offset));
+    __ RecordWrite(receiver_reg, name_reg, scratch);
+  } else {
+    // Write to the properties array.
+    int offset = index * kPointerSize + FixedArray::kHeaderSize;
+    // Get the properties array
+    __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset));
+    __ str(r0, FieldMemOperand(scratch, offset));
+
+    // Skip updating write barrier if storing a smi.
+    __ tst(r0, Operand(kSmiTagMask));
+    __ b(eq, &exit);
+
+    // Update the write barrier for the array address.
+    // Ok to clobber receiver_reg and name_reg, since we return.
+    __ mov(name_reg, Operand(offset));
+    __ RecordWrite(scratch, name_reg, receiver_reg);
+  }
+
+  // Return the value (register r0).
+  __ bind(&exit);
+  __ Ret();
+}
+
+
+void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
+  ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
+  Code* code = NULL;
+  if (kind == Code::LOAD_IC) {
+    code = Builtins::builtin(Builtins::LoadIC_Miss);
+  } else {
+    code = Builtins::builtin(Builtins::KeyedLoadIC_Miss);
+  }
+
+  Handle<Code> ic(code);
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+}
+
+
+#undef __
+#define __ ACCESS_MASM(masm())
+
+
+Register StubCompiler::CheckPrototypes(JSObject* object,
+                                       Register object_reg,
+                                       JSObject* holder,
+                                       Register holder_reg,
+                                       Register scratch,
+                                       String* name,
+                                       Label* miss) {
+  // Check that the maps haven't changed.
+  Register result =
+      masm()->CheckMaps(object, object_reg, holder, holder_reg, scratch, miss);
+
+  // If we've skipped any global objects, it's not enough to verify
+  // that their maps haven't changed.
+  while (object != holder) {
+    if (object->IsGlobalObject()) {
+      GlobalObject* global = GlobalObject::cast(object);
+      Object* probe = global->EnsurePropertyCell(name);
+      if (probe->IsFailure()) {
+        set_failure(Failure::cast(probe));
+        return result;
+      }
+      JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(probe);
+      ASSERT(cell->value()->IsTheHole());
+      __ mov(scratch, Operand(Handle<Object>(cell)));
+      __ ldr(scratch,
+             FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset));
+      __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
+      __ cmp(scratch, ip);
+      __ b(ne, miss);
+    }
+    object = JSObject::cast(object->GetPrototype());
+  }
+
+  // Return the register containin the holder.
+  return result;
+}
+
+
+void StubCompiler::GenerateLoadField(JSObject* object,
+                                     JSObject* holder,
+                                     Register receiver,
+                                     Register scratch1,
+                                     Register scratch2,
+                                     int index,
+                                     String* name,
+                                     Label* miss) {
+  // Check that the receiver isn't a smi.
+  __ tst(receiver, Operand(kSmiTagMask));
+  __ b(eq, miss);
+
+  // Check that the maps haven't changed.
+  Register reg =
+      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+  GenerateFastPropertyLoad(masm(), r0, reg, holder, index);
+  __ Ret();
+}
+
+
+void StubCompiler::GenerateLoadConstant(JSObject* object,
+                                        JSObject* holder,
+                                        Register receiver,
+                                        Register scratch1,
+                                        Register scratch2,
+                                        Object* value,
+                                        String* name,
+                                        Label* miss) {
+  // Check that the receiver isn't a smi.
+  __ tst(receiver, Operand(kSmiTagMask));
+  __ b(eq, miss);
+
+  // Check that the maps haven't changed.
+  Register reg =
+      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+
+  // Return the constant value.
+  __ mov(r0, Operand(Handle<Object>(value)));
+  __ Ret();
+}
+
+
+void StubCompiler::GenerateLoadCallback(JSObject* object,
+                                        JSObject* holder,
+                                        Register receiver,
+                                        Register name_reg,
+                                        Register scratch1,
+                                        Register scratch2,
+                                        AccessorInfo* callback,
+                                        String* name,
+                                        Label* miss) {
+  // Check that the receiver isn't a smi.
+  __ tst(receiver, Operand(kSmiTagMask));
+  __ b(eq, miss);
+
+  // Check that the maps haven't changed.
+  Register reg =
+      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+
+  // Push the arguments on the JS stack of the caller.
+  __ push(receiver);  // receiver
+  __ push(reg);  // holder
+  __ mov(ip, Operand(Handle<AccessorInfo>(callback)));  // callback data
+  __ push(ip);
+  __ ldr(reg, FieldMemOperand(ip, AccessorInfo::kDataOffset));
+  __ push(reg);
+  __ push(name_reg);  // name
+
+  // Do tail-call to the runtime system.
+  ExternalReference load_callback_property =
+      ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
+  __ TailCallRuntime(load_callback_property, 5, 1);
+}
+
+
+void StubCompiler::GenerateLoadInterceptor(JSObject* object,
+                                           JSObject* holder,
+                                           LookupResult* lookup,
+                                           Register receiver,
+                                           Register name_reg,
+                                           Register scratch1,
+                                           Register scratch2,
+                                           String* name,
+                                           Label* miss) {
+  // Check that the receiver isn't a smi.
+  __ tst(receiver, Operand(kSmiTagMask));
+  __ b(eq, miss);
+
+  // Check that the maps haven't changed.
+  Register reg =
+      CheckPrototypes(object, receiver, holder, scratch1, scratch2, name, miss);
+
+  // Push the arguments on the JS stack of the caller.
+  __ push(receiver);  // receiver
+  __ push(reg);  // holder
+  __ push(name_reg);  // name
+
+  InterceptorInfo* interceptor = holder->GetNamedInterceptor();
+  ASSERT(!Heap::InNewSpace(interceptor));
+  __ mov(scratch1, Operand(Handle<Object>(interceptor)));
+  __ push(scratch1);
+  __ ldr(scratch2, FieldMemOperand(scratch1, InterceptorInfo::kDataOffset));
+  __ push(scratch2);
+
+  // Do tail-call to the runtime system.
+  ExternalReference load_ic_property =
+      ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorForLoad));
+  __ TailCallRuntime(load_ic_property, 5, 1);
+}
+
+
+Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {
+  // ----------- S t a t e -------------
+  //  -- r1: function
+  //  -- lr: return address
+  // -----------------------------------
+
+  // Enter an internal frame.
+  __ EnterInternalFrame();
+
+  // Preserve the function.
+  __ push(r1);
+
+  // Push the function on the stack as the argument to the runtime function.
+  __ push(r1);
+  __ CallRuntime(Runtime::kLazyCompile, 1);
+
+  // Calculate the entry point.
+  __ add(r2, r0, Operand(Code::kHeaderSize - kHeapObjectTag));
+
+  // Restore saved function.
+  __ pop(r1);
+
+  // Tear down temporary frame.
+  __ LeaveInternalFrame();
+
+  // Do a tail-call of the compiled function.
+  __ Jump(r2);
+
+  return GetCodeWithFlags(flags, "LazyCompileStub");
+}
+
+
+Object* CallStubCompiler::CompileCallField(Object* object,
+                                           JSObject* holder,
+                                           int index,
+                                           String* name) {
+  // ----------- S t a t e -------------
+  //  -- lr: return address
+  // -----------------------------------
+  Label miss;
+
+  const int argc = arguments().immediate();
+
+  // Get the receiver of the function from the stack into r0.
+  __ ldr(r0, MemOperand(sp, argc * kPointerSize));
+  // Check that the receiver isn't a smi.
+  __ tst(r0, Operand(kSmiTagMask));
+  __ b(eq, &miss);
+
+  // Do the right check and compute the holder register.
+  Register reg =
+      CheckPrototypes(JSObject::cast(object), r0, holder, r3, r2, name, &miss);
+  GenerateFastPropertyLoad(masm(), r1, reg, holder, index);
+
+  // Check that the function really is a function.
+  __ tst(r1, Operand(kSmiTagMask));
+  __ b(eq, &miss);
+  // Get the map.
+  __ CompareObjectType(r1, r2, r2, JS_FUNCTION_TYPE);
+  __ b(ne, &miss);
+
+  // Patch the receiver on the stack with the global proxy if
+  // necessary.
+  if (object->IsGlobalObject()) {
+    __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
+    __ str(r3, MemOperand(sp, argc * kPointerSize));
+  }
+
+  // Invoke the function.
+  __ InvokeFunction(r1, arguments(), JUMP_FUNCTION);
+
+  // Handle call cache miss.
+  __ bind(&miss);
+  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(FIELD, name);
+}
+
+
+Object* CallStubCompiler::CompileCallConstant(Object* object,
+                                              JSObject* holder,
+                                              JSFunction* function,
+                                              String* name,
+                                              CheckType check) {
+  // ----------- S t a t e -------------
+  //  -- lr: return address
+  // -----------------------------------
+  Label miss;
+
+  // Get the receiver from the stack
+  const int argc = arguments().immediate();
+  __ ldr(r1, MemOperand(sp, argc * kPointerSize));
+
+  // Check that the receiver isn't a smi.
+  if (check != NUMBER_CHECK) {
+    __ tst(r1, Operand(kSmiTagMask));
+    __ b(eq, &miss);
+  }
+
+  // Make sure that it's okay not to patch the on stack receiver
+  // unless we're doing a receiver map check.
+  ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK);
+
+  switch (check) {
+    case RECEIVER_MAP_CHECK:
+      // Check that the maps haven't changed.
+      CheckPrototypes(JSObject::cast(object), r1, holder, r3, r2, name, &miss);
+
+      // Patch the receiver on the stack with the global proxy if
+      // necessary.
+      if (object->IsGlobalObject()) {
+        __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset));
+        __ str(r3, MemOperand(sp, argc * kPointerSize));
+      }
+      break;
+
+    case STRING_CHECK:
+      // Check that the object is a two-byte string or a symbol.
+      __ CompareObjectType(r1, r2, r2, FIRST_NONSTRING_TYPE);
+      __ b(hs, &miss);
+      // Check that the maps starting from the prototype haven't changed.
+      GenerateLoadGlobalFunctionPrototype(masm(),
+                                          Context::STRING_FUNCTION_INDEX,
+                                          r2);
+      CheckPrototypes(JSObject::cast(object->GetPrototype()), r2, holder, r3,
+                      r1, name, &miss);
+      break;
+
+    case NUMBER_CHECK: {
+      Label fast;
+      // Check that the object is a smi or a heap number.
+      __ tst(r1, Operand(kSmiTagMask));
+      __ b(eq, &fast);
+      __ CompareObjectType(r1, r2, r2, HEAP_NUMBER_TYPE);
+      __ b(ne, &miss);
+      __ bind(&fast);
+      // Check that the maps starting from the prototype haven't changed.
+      GenerateLoadGlobalFunctionPrototype(masm(),
+                                          Context::NUMBER_FUNCTION_INDEX,
+                                          r2);
+      CheckPrototypes(JSObject::cast(object->GetPrototype()), r2, holder, r3,
+                      r1, name, &miss);
+      break;
+    }
+
+    case BOOLEAN_CHECK: {
+      Label fast;
+      // Check that the object is a boolean.
+      __ LoadRoot(ip, Heap::kTrueValueRootIndex);
+      __ cmp(r1, ip);
+      __ b(eq, &fast);
+      __ LoadRoot(ip, Heap::kFalseValueRootIndex);
+      __ cmp(r1, ip);
+      __ b(ne, &miss);
+      __ bind(&fast);
+      // Check that the maps starting from the prototype haven't changed.
+      GenerateLoadGlobalFunctionPrototype(masm(),
+                                          Context::BOOLEAN_FUNCTION_INDEX,
+                                          r2);
+      CheckPrototypes(JSObject::cast(object->GetPrototype()), r2, holder, r3,
+                      r1, name, &miss);
+      break;
+    }
+
+    case JSARRAY_HAS_FAST_ELEMENTS_CHECK:
+      CheckPrototypes(JSObject::cast(object), r1, holder, r3, r2, name, &miss);
+      // Make sure object->HasFastElements().
+      // Get the elements array of the object.
+      __ ldr(r3, FieldMemOperand(r1, JSObject::kElementsOffset));
+      // Check that the object is in fast mode (not dictionary).
+      __ ldr(r2, FieldMemOperand(r3, HeapObject::kMapOffset));
+      __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex);
+      __ cmp(r2, ip);
+      __ b(ne, &miss);
+      break;
+
+    default:
+      UNREACHABLE();
+  }
+
+  // Get the function and setup the context.
+  __ mov(r1, Operand(Handle<JSFunction>(function)));
+  __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
+
+  // Jump to the cached code (tail call).
+  ASSERT(function->is_compiled());
+  Handle<Code> code(function->code());
+  ParameterCount expected(function->shared()->formal_parameter_count());
+  __ InvokeCode(code, expected, arguments(),
+                RelocInfo::CODE_TARGET, JUMP_FUNCTION);
+
+  // Handle call cache miss.
+  __ bind(&miss);
+  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  String* function_name = NULL;
+  if (function->shared()->name()->IsString()) {
+    function_name = String::cast(function->shared()->name());
+  }
+  return GetCode(CONSTANT_FUNCTION, function_name);
+}
+
+
+Object* CallStubCompiler::CompileCallInterceptor(Object* object,
+                                                 JSObject* holder,
+                                                 String* name) {
+  // ----------- S t a t e -------------
+  //  -- lr: return address
+  // -----------------------------------
+  Label miss;
+
+  // TODO(1224669): Implement.
+
+  // Handle call cache miss.
+  __ bind(&miss);
+  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* CallStubCompiler::CompileCallGlobal(JSObject* object,
+                                            GlobalObject* holder,
+                                            JSGlobalPropertyCell* cell,
+                                            JSFunction* function,
+                                            String* name) {
+  // ----------- S t a t e -------------
+  //  -- lr: return address
+  // -----------------------------------
+  Label miss;
+
+  // Get the number of arguments.
+  const int argc = arguments().immediate();
+
+  // Get the receiver from the stack.
+  __ ldr(r0, MemOperand(sp, argc * kPointerSize));
+
+  // If the object is the holder then we know that it's a global
+  // object which can only happen for contextual calls. In this case,
+  // the receiver cannot be a smi.
+  if (object != holder) {
+    __ tst(r0, Operand(kSmiTagMask));
+    __ b(eq, &miss);
+  }
+
+  // Check that the maps haven't changed.
+  CheckPrototypes(object, r0, holder, r3, r2, name, &miss);
+
+  // Get the value from the cell.
+  __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell)));
+  __ ldr(r1, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset));
+
+  // Check that the cell contains the same function.
+  __ cmp(r1, Operand(Handle<JSFunction>(function)));
+  __ b(ne, &miss);
+
+  // Patch the receiver on the stack with the global proxy if
+  // necessary.
+  if (object->IsGlobalObject()) {
+    __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
+    __ str(r3, MemOperand(sp, argc * kPointerSize));
+  }
+
+  // Setup the context (function already in r1).
+  __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
+
+  // Jump to the cached code (tail call).
+  __ IncrementCounter(&Counters::call_global_inline, 1, r2, r3);
+  ASSERT(function->is_compiled());
+  Handle<Code> code(function->code());
+  ParameterCount expected(function->shared()->formal_parameter_count());
+  __ InvokeCode(code, expected, arguments(),
+                RelocInfo::CODE_TARGET, JUMP_FUNCTION);
+
+  // Handle call cache miss.
+  __ bind(&miss);
+  __ IncrementCounter(&Counters::call_global_inline_miss, 1, r1, r3);
+  Handle<Code> ic = ComputeCallMiss(arguments().immediate());
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(NORMAL, name);
+}
+
+
+Object* StoreStubCompiler::CompileStoreField(JSObject* object,
+                                             int index,
+                                             Map* transition,
+                                             String* name) {
+  // ----------- S t a t e -------------
+  //  -- r0    : value
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Get the receiver from the stack.
+  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+
+  // name register might be clobbered.
+  GenerateStoreField(masm(),
+                     Builtins::StoreIC_ExtendStorage,
+                     object,
+                     index,
+                     transition,
+                     r3, r2, r1,
+                     &miss);
+  __ bind(&miss);
+  __ mov(r2, Operand(Handle<String>(name)));  // restore name
+  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
+}
+
+
+Object* StoreStubCompiler::CompileStoreCallback(JSObject* object,
+                                                AccessorInfo* callback,
+                                                String* name) {
+  // ----------- S t a t e -------------
+  //  -- r0    : value
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Get the object from the stack.
+  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+
+  // Check that the object isn't a smi.
+  __ tst(r3, Operand(kSmiTagMask));
+  __ b(eq, &miss);
+
+  // Check that the map of the object hasn't changed.
+  __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset));
+  __ cmp(r1, Operand(Handle<Map>(object->map())));
+  __ b(ne, &miss);
+
+  // Perform global security token check if needed.
+  if (object->IsJSGlobalProxy()) {
+    __ CheckAccessGlobalProxy(r3, r1, &miss);
+  }
+
+  // Stub never generated for non-global objects that require access
+  // checks.
+  ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
+
+  __ ldr(ip, MemOperand(sp));  // receiver
+  __ push(ip);
+  __ mov(ip, Operand(Handle<AccessorInfo>(callback)));  // callback info
+  __ push(ip);
+  __ push(r2);  // name
+  __ push(r0);  // value
+
+  // Do tail-call to the runtime system.
+  ExternalReference store_callback_property =
+      ExternalReference(IC_Utility(IC::kStoreCallbackProperty));
+  __ TailCallRuntime(store_callback_property, 4, 1);
+
+  // Handle store cache miss.
+  __ bind(&miss);
+  __ mov(r2, Operand(Handle<String>(name)));  // restore name
+  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(CALLBACKS, name);
+}
+
+
+Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
+                                                   String* name) {
+  // ----------- S t a t e -------------
+  //  -- r0    : value
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Get the object from the stack.
+  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
+
+  // Check that the object isn't a smi.
+  __ tst(r3, Operand(kSmiTagMask));
+  __ b(eq, &miss);
+
+  // Check that the map of the object hasn't changed.
+  __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset));
+  __ cmp(r1, Operand(Handle<Map>(receiver->map())));
+  __ b(ne, &miss);
+
+  // Perform global security token check if needed.
+  if (receiver->IsJSGlobalProxy()) {
+    __ CheckAccessGlobalProxy(r3, r1, &miss);
+  }
+
+  // Stub never generated for non-global objects that require access
+  // checks.
+  ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded());
+
+  __ ldr(ip, MemOperand(sp));  // receiver
+  __ push(ip);
+  __ push(r2);  // name
+  __ push(r0);  // value
+
+  // Do tail-call to the runtime system.
+  ExternalReference store_ic_property =
+      ExternalReference(IC_Utility(IC::kStoreInterceptorProperty));
+  __ TailCallRuntime(store_ic_property, 3, 1);
+
+  // Handle store cache miss.
+  __ bind(&miss);
+  __ mov(r2, Operand(Handle<String>(name)));  // restore name
+  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
+                                              JSGlobalPropertyCell* cell,
+                                              String* name) {
+  // ----------- S t a t e -------------
+  //  -- r0    : value
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Check that the map of the global has not changed.
+  __ ldr(r1, MemOperand(sp, 0 * kPointerSize));
+  __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset));
+  __ cmp(r3, Operand(Handle<Map>(object->map())));
+  __ b(ne, &miss);
+
+  // Store the value in the cell.
+  __ mov(r2, Operand(Handle<JSGlobalPropertyCell>(cell)));
+  __ str(r0, FieldMemOperand(r2, JSGlobalPropertyCell::kValueOffset));
+
+  __ IncrementCounter(&Counters::named_store_global_inline, 1, r1, r3);
+  __ Ret();
+
+  // Handle store cache miss.
+  __ bind(&miss);
+  __ IncrementCounter(&Counters::named_store_global_inline_miss, 1, r1, r3);
+  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss));
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(NORMAL, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadField(JSObject* object,
+                                           JSObject* holder,
+                                           int index,
+                                           String* name) {
+  // ----------- S t a t e -------------
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ ldr(r0, MemOperand(sp, 0));
+
+  GenerateLoadField(object, holder, r0, r3, r1, index, name, &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(FIELD, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadCallback(JSObject* object,
+                                              JSObject* holder,
+                                              AccessorInfo* callback,
+                                              String* name) {
+  // ----------- S t a t e -------------
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ ldr(r0, MemOperand(sp, 0));
+  GenerateLoadCallback(object, holder, r0, r2, r3, r1, callback, name, &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(CALLBACKS, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadConstant(JSObject* object,
+                                              JSObject* holder,
+                                              Object* value,
+                                              String* name) {
+  // ----------- S t a t e -------------
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp] : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ ldr(r0, MemOperand(sp, 0));
+
+  GenerateLoadConstant(object, holder, r0, r3, r1, value, name, &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(CONSTANT_FUNCTION, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* object,
+                                                 JSObject* holder,
+                                                 String* name) {
+  // ----------- S t a t e -------------
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ ldr(r0, MemOperand(sp, 0));
+
+  LookupResult lookup;
+  holder->LocalLookupRealNamedProperty(name, &lookup);
+  GenerateLoadInterceptor(object,
+                          holder,
+                          &lookup,
+                          r0,
+                          r2,
+                          r3,
+                          r1,
+                          name,
+                          &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object,
+                                            GlobalObject* holder,
+                                            JSGlobalPropertyCell* cell,
+                                            String* name,
+                                            bool is_dont_delete) {
+  // ----------- S t a t e -------------
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Get the receiver from the stack.
+  __ ldr(r1, MemOperand(sp, 0 * kPointerSize));
+
+  // If the object is the holder then we know that it's a global
+  // object which can only happen for contextual calls. In this case,
+  // the receiver cannot be a smi.
+  if (object != holder) {
+    __ tst(r1, Operand(kSmiTagMask));
+    __ b(eq, &miss);
+  }
+
+  // Check that the map of the global has not changed.
+  CheckPrototypes(object, r1, holder, r3, r0, name, &miss);
+
+  // Get the value from the cell.
+  __ mov(r3, Operand(Handle<JSGlobalPropertyCell>(cell)));
+  __ ldr(r0, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset));
+
+  // Check for deleted property if property can actually be deleted.
+  if (!is_dont_delete) {
+    __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
+    __ cmp(r0, ip);
+    __ b(eq, &miss);
+  }
+
+  __ IncrementCounter(&Counters::named_load_global_inline, 1, r1, r3);
+  __ Ret();
+
+  __ bind(&miss);
+  __ IncrementCounter(&Counters::named_load_global_inline_miss, 1, r1, r3);
+  GenerateLoadMiss(masm(), Code::LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(NORMAL, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadField(String* name,
+                                                JSObject* receiver,
+                                                JSObject* holder,
+                                                int index) {
+  // ----------- S t a t e -------------
+  //  -- lr    : return address
+  //  -- sp[0] : key
+  //  -- sp[4] : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ ldr(r2, MemOperand(sp, 0));
+  __ ldr(r0, MemOperand(sp, kPointerSize));
+
+  __ cmp(r2, Operand(Handle<String>(name)));
+  __ b(ne, &miss);
+
+  GenerateLoadField(receiver, holder, r0, r3, r1, index, name, &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  return GetCode(FIELD, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name,
+                                                   JSObject* receiver,
+                                                   JSObject* holder,
+                                                   AccessorInfo* callback) {
+  // ----------- S t a t e -------------
+  //  -- lr    : return address
+  //  -- sp[0] : key
+  //  -- sp[4] : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ ldr(r2, MemOperand(sp, 0));
+  __ ldr(r0, MemOperand(sp, kPointerSize));
+
+  __ cmp(r2, Operand(Handle<String>(name)));
+  __ b(ne, &miss);
+
+  GenerateLoadCallback(receiver, holder, r0, r2, r3, r1, callback, name, &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  return GetCode(CALLBACKS, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name,
+                                                   JSObject* receiver,
+                                                   JSObject* holder,
+                                                   Object* value) {
+  // ----------- S t a t e -------------
+  //  -- lr    : return address
+  //  -- sp[0] : key
+  //  -- sp[4] : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Check the key is the cached one
+  __ ldr(r2, MemOperand(sp, 0));
+  __ ldr(r0, MemOperand(sp, kPointerSize));
+
+  __ cmp(r2, Operand(Handle<String>(name)));
+  __ b(ne, &miss);
+
+  GenerateLoadConstant(receiver, holder, r0, r3, r1, value, name, &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(CONSTANT_FUNCTION, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver,
+                                                      JSObject* holder,
+                                                      String* name) {
+  // ----------- S t a t e -------------
+  //  -- lr    : return address
+  //  -- sp[0] : key
+  //  -- sp[4] : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Check the key is the cached one
+  __ ldr(r2, MemOperand(sp, 0));
+  __ ldr(r0, MemOperand(sp, kPointerSize));
+
+  __ cmp(r2, Operand(Handle<String>(name)));
+  __ b(ne, &miss);
+
+  LookupResult lookup;
+  holder->LocalLookupRealNamedProperty(name, &lookup);
+  GenerateLoadInterceptor(receiver,
+                          holder,
+                          &lookup,
+                          r0,
+                          r2,
+                          r3,
+                          r1,
+                          name,
+                          &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  return GetCode(INTERCEPTOR, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) {
+  // ----------- S t a t e -------------
+  //  -- lr    : return address
+  //  -- sp[0] : key
+  //  -- sp[4] : receiver
+  // -----------------------------------
+  Label miss;
+
+  // Check the key is the cached one
+  __ ldr(r2, MemOperand(sp, 0));
+  __ ldr(r0, MemOperand(sp, kPointerSize));
+
+  __ cmp(r2, Operand(Handle<String>(name)));
+  __ b(ne, &miss);
+
+  GenerateLoadArrayLength(masm(), r0, r3, &miss);
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  return GetCode(CALLBACKS, name);
+}
+
+
+Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) {
+  // ----------- S t a t e -------------
+  //  -- lr    : return address
+  //  -- sp[0] : key
+  //  -- sp[4] : receiver
+  // -----------------------------------
+  Label miss;
+  __ IncrementCounter(&Counters::keyed_load_string_length, 1, r1, r3);
+
+  __ ldr(r2, MemOperand(sp));
+  __ ldr(r0, MemOperand(sp, kPointerSize));  // receiver
+
+  __ cmp(r2, Operand(Handle<String>(name)));
+  __ b(ne, &miss);
+
+  GenerateLoadStringLength2(masm(), r0, r1, r3, &miss);
+  __ bind(&miss);
+  __ DecrementCounter(&Counters::keyed_load_string_length, 1, r1, r3);
+
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  return GetCode(CALLBACKS, name);
+}
+
+
+// TODO(1224671): implement the fast case.
+Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) {
+  // ----------- S t a t e -------------
+  //  -- lr    : return address
+  //  -- sp[0] : key
+  //  -- sp[4] : receiver
+  // -----------------------------------
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  return GetCode(CALLBACKS, name);
+}
+
+
+Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
+                                                  int index,
+                                                  Map* transition,
+                                                  String* name) {
+  // ----------- S t a t e -------------
+  //  -- r0    : value
+  //  -- r2    : name
+  //  -- lr    : return address
+  //  -- [sp]  : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ IncrementCounter(&Counters::keyed_store_field, 1, r1, r3);
+
+  // Check that the name has not changed.
+  __ cmp(r2, Operand(Handle<String>(name)));
+  __ b(ne, &miss);
+
+  // Load receiver from the stack.
+  __ ldr(r3, MemOperand(sp));
+  // r1 is used as scratch register, r3 and r2 might be clobbered.
+  GenerateStoreField(masm(),
+                     Builtins::StoreIC_ExtendStorage,
+                     object,
+                     index,
+                     transition,
+                     r3, r2, r1,
+                     &miss);
+  __ bind(&miss);
+
+  __ DecrementCounter(&Counters::keyed_store_field, 1, r1, r3);
+  __ mov(r2, Operand(Handle<String>(name)));  // restore name register.
+  Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss));
+  __ Jump(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
+}
+
+
+Object* ConstructStubCompiler::CompileConstructStub(
+    SharedFunctionInfo* shared) {
+  // ----------- S t a t e -------------
+  //  -- r0    : argc
+  //  -- r1    : constructor
+  //  -- lr    : return address
+  //  -- [sp]  : last argument
+  // -----------------------------------
+  Label generic_stub_call;
+
+  // Use r7 for holding undefined which is used in several places below.
+  __ LoadRoot(r7, Heap::kUndefinedValueRootIndex);
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+  // Check to see whether there are any break points in the function code. If
+  // there are jump to the generic constructor stub which calls the actual
+  // code for the function thereby hitting the break points.
+  __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
+  __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kDebugInfoOffset));
+  __ cmp(r2, r7);
+  __ b(ne, &generic_stub_call);
+#endif
+
+  // Load the initial map and verify that it is in fact a map.
+  // r1: constructor function
+  // r7: undefined
+  __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset));
+  __ tst(r2, Operand(kSmiTagMask));
+  __ b(eq, &generic_stub_call);
+  __ CompareObjectType(r2, r3, r4, MAP_TYPE);
+  __ b(ne, &generic_stub_call);
+
+#ifdef DEBUG
+  // Cannot construct functions this way.
+  // r0: argc
+  // r1: constructor function
+  // r2: initial map
+  // r7: undefined
+  __ CompareInstanceType(r2, r3, JS_FUNCTION_TYPE);
+  __ Check(ne, "Function constructed by construct stub.");
+#endif
+
+  // Now allocate the JSObject in new space.
+  // r0: argc
+  // r1: constructor function
+  // r2: initial map
+  // r7: undefined
+  __ ldrb(r3, FieldMemOperand(r2, Map::kInstanceSizeOffset));
+  __ AllocateInNewSpace(r3,
+                        r4,
+                        r5,
+                        r6,
+                        &generic_stub_call,
+                        NO_ALLOCATION_FLAGS);
+
+  // Allocated the JSObject, now initialize the fields. Map is set to initial
+  // map and properties and elements are set to empty fixed array.
+  // r0: argc
+  // r1: constructor function
+  // r2: initial map
+  // r3: object size (in words)
+  // r4: JSObject (not tagged)
+  // r7: undefined
+  __ LoadRoot(r6, Heap::kEmptyFixedArrayRootIndex);
+  __ mov(r5, r4);
+  ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset);
+  __ str(r2, MemOperand(r5, kPointerSize, PostIndex));
+  ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset);
+  __ str(r6, MemOperand(r5, kPointerSize, PostIndex));
+  ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset);
+  __ str(r6, MemOperand(r5, kPointerSize, PostIndex));
+
+  // Calculate the location of the first argument. The stack contains only the
+  // argc arguments.
+  __ add(r1, sp, Operand(r0, LSL, kPointerSizeLog2));
+
+  // Fill all the in-object properties with undefined.
+  // r0: argc
+  // r1: first argument
+  // r3: object size (in words)
+  // r4: JSObject (not tagged)
+  // r5: First in-object property of JSObject (not tagged)
+  // r7: undefined
+  // Fill the initialized properties with a constant value or a passed argument
+  // depending on the this.x = ...; assignment in the function.
+  for (int i = 0; i < shared->this_property_assignments_count(); i++) {
+    if (shared->IsThisPropertyAssignmentArgument(i)) {
+      Label not_passed, next;
+      // Check if the argument assigned to the property is actually passed.
+      int arg_number = shared->GetThisPropertyAssignmentArgument(i);
+      __ cmp(r0, Operand(arg_number));
+      __ b(le, &not_passed);
+      // Argument passed - find it on the stack.
+      __ ldr(r2, MemOperand(r1, (arg_number + 1) * -kPointerSize));
+      __ str(r2, MemOperand(r5, kPointerSize, PostIndex));
+      __ b(&next);
+      __ bind(&not_passed);
+      // Set the property to undefined.
+      __ str(r7, MemOperand(r5, kPointerSize, PostIndex));
+      __ bind(&next);
+    } else {
+      // Set the property to the constant value.
+      Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i));
+      __ mov(r2, Operand(constant));
+      __ str(r2, MemOperand(r5, kPointerSize, PostIndex));
+    }
+  }
+
+  // Fill the unused in-object property fields with undefined.
+  for (int i = shared->this_property_assignments_count();
+       i < shared->CalculateInObjectProperties();
+       i++) {
+      __ str(r7, MemOperand(r5, kPointerSize, PostIndex));
+  }
+
+  // r0: argc
+  // r4: JSObject (not tagged)
+  // Move argc to r1 and the JSObject to return to r0 and tag it.
+  __ mov(r1, r0);
+  __ mov(r0, r4);
+  __ orr(r0, r0, Operand(kHeapObjectTag));
+
+  // r0: JSObject
+  // r1: argc
+  // Remove caller arguments and receiver from the stack and return.
+  __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2));
+  __ add(sp, sp, Operand(kPointerSize));
+  __ IncrementCounter(&Counters::constructed_objects, 1, r1, r2);
+  __ IncrementCounter(&Counters::constructed_objects_stub, 1, r1, r2);
+  __ Jump(lr);
+
+  // Jump to the generic stub in case the specialized code cannot handle the
+  // construction.
+  __ bind(&generic_stub_call);
+  Code* code = Builtins::builtin(Builtins::JSConstructStubGeneric);
+  Handle<Code> generic_construct_stub(code);
+  __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode();
+}
+
+
+#undef __
+
+} }  // namespace v8::internal