PPC: [stubs]: Implement ArrayNoArgumentConstructor as a TF stub

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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 227 matching lines @@
 }
 
 #define SIMD128_ALLOC_DESC(TYPE, Type, type, lane_count, lane_type) \
   void Allocate##Type##Descriptor::InitializePlatformSpecific(      \
       CallInterfaceDescriptorData* data) {                          \
     data->InitializePlatformSpecific(0, nullptr, nullptr);          \
   }
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // register state
+  // r3 -- number of arguments
+  // r4 -- function
+  // r5 -- allocation site with elements kind
+  Register registers[] = {r4, r5, r3};
+  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);

[MTBrandyberry, 2016/05/03 16:35:21]

The 3rd parameter is implicitly NULL.  I'd omit it for consistency with the rest
of the file.

+}
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state
   // r3 -- number of arguments
   // r4 -- function
   // r5 -- allocation site with elements kind
   Register registers[] = {r4, r5};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
@@ skipping 157 matching lines @@
       r3,  // the value to pass to the generator
       r4,  // the JSGeneratorObject to resume
       r5   // the resume mode (tagged)
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC