Get CallInterfaceDescriptor directly from CodeStub.

src/interface-descriptors.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/v8.h"
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 24 matching lines @@
       // If there is a context register, the representation must be tagged.
       DCHECK(
           i != 0 ||
           register_param_representations[i].Equals(Representation::Tagged()));
       register_param_representations_[i] = register_param_representations[i];
     }
   }
 }
 
 
+const char* CallInterfaceDescriptor::DebugName(Isolate* isolate) {
+  CallInterfaceDescriptorData* start = isolate->call_descriptor_data(0);
+  int index = data_ - start;
+  DCHECK(index < CallDescriptors::NUMBER_OF_DESCRIPTORS);
+  CallDescriptors::Key key = static_cast<CallDescriptors::Key>(index);
+  switch (key) {
+#define DEF_CASE(NAME)        \
+  case CallDescriptors::NAME: \
+    return #NAME " Descriptor";
+    INTERFACE_DESCRIPTOR_LIST(DEF_CASE)
+#undef DEF_CASE
+    case CallDescriptors::NUMBER_OF_DESCRIPTORS:
+      break;
+  }
+  return "";
+}
+
+
 void LoadDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {ContextRegister(), ReceiverRegister(),
                           NameRegister()};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void StoreDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {ContextRegister(), ReceiverRegister(), NameRegister(),
                           ValueRegister()};
@@ skipping 16 matching lines @@
 
 
 void VectorLoadICDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {ContextRegister(), ReceiverRegister(), NameRegister(),
                           SlotRegister(), VectorRegister()};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 }
 }  // namespace v8::internal