[stubs] An easier way of defining a stub call interface descriptor.

src/arm64/interface-descriptors-arm64.cc

 // Copyright 2012 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/arm64/interface-descriptors-arm64.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
 
 const Register CallInterfaceDescriptor::ContextRegister() { return cp; }
 
+void CallInterfaceDescriptor::DefaultInitializePlatformSpecific(
+    CallInterfaceDescriptorData* data, int register_parameter_count) {
+  const Register default_stub_registers[] = {x0, x1, x2, x3, x4};
+  CHECK_LE(static_cast<size_t>(register_parameter_count),
+           arraysize(default_stub_registers));
+  data->InitializePlatformSpecific(register_parameter_count,
+                                   default_stub_registers);
+}
 
 const Register LoadDescriptor::ReceiverRegister() { return x1; }
 const Register LoadDescriptor::NameRegister() { return x2; }
 const Register LoadDescriptor::SlotRegister() { return x0; }
 
 
 const Register LoadWithVectorDescriptor::VectorRegister() { return x3; }
 
 
 const Register StoreDescriptor::ReceiverRegister() { return x1; }
@@ skipping 30 matching lines @@
 
 const Register MathPowTaggedDescriptor::exponent() { return x11; }
 
 
 const Register MathPowIntegerDescriptor::exponent() { return x12; }
 
 
 const Register GrowArrayElementsDescriptor::ObjectRegister() { return x0; }
 const Register GrowArrayElementsDescriptor::KeyRegister() { return x3; }
 
-const Register HasPropertyDescriptor::ObjectRegister() { return x0; }
-const Register HasPropertyDescriptor::KeyRegister() { return x3; }
 
 void FastNewClosureDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // x2: function info
   Register registers[] = {x2};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 
 void FastNewContextDescriptor::InitializePlatformSpecific(
@@ skipping 391 matching lines @@
       x1,  // the JSGeneratorObject to resume
       x2   // the resume mode (tagged)
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64