[stubs] Add missing interface descriptor for the CompareIC.

src/ppc/interface-descriptors-ppc.cc

 // Copyright 2014 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/interface-descriptors.h"
 
@@ skipping 209 matching lines @@
     CallInterfaceDescriptorData* data) {
   // stack param count needs (constructor pointer, and single argument)
   Register registers[] = {cp, r4, r3};
   Representation representations[] = {Representation::Tagged(),
                                       Representation::Tagged(),
                                       Representation::Integer32()};
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
+void CompareDescriptor::Initialize(CallInterfaceDescriptorData* data) {
+  Register registers[] = {cp, r4, r3};
+  data->Initialize(arraysize(registers), registers, NULL);
+}
+
+
 void CompareNilDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {cp, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void ToBooleanDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {cp, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
@@ skipping 109 matching lines @@
       Representation::Tagged(),    // call_data
       Representation::Tagged(),    // holder
       Representation::External(),  // api_function_address
   };
   data->Initialize(arraysize(registers), registers, representations);
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_PPC