Removing redundant stub for runtime native calls.

src/codegen.cc

 // Copyright 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
@@ skipping 434 matching lines @@
   if (FLAG_debug_info) RecordPositions(masm(), stmt->condition_position());
 }
 
 void CodeGenerator::CodeForSourcePosition(int pos) {
   if (FLAG_debug_info && pos != RelocInfo::kNoPosition) {
     masm()->RecordPosition(pos);
   }
 }
 
 
-const char* RuntimeStub::GetName() {
-  return Runtime::FunctionForId(id_)->stub_name;
-}
-
-
 const char* GenericUnaryOpStub::GetName() {
   switch (op_) {
     case Token::SUB:
       return overwrite_
           ? "GenericUnaryOpStub_SUB_Overwrite"
           : "GenericUnaryOpStub_SUB_Alloc";
     case Token::BIT_NOT:
       return overwrite_
           ? "GenericUnaryOpStub_BIT_NOT_Overwrite"
           : "GenericUnaryOpStub_BIT_NOT_Alloc";
     default:
       UNREACHABLE();
       return "<unknown>";
   }
 }
 
 
-void RuntimeStub::Generate(MacroAssembler* masm) {
-  Runtime::Function* f = Runtime::FunctionForId(id_);
-  masm->TailCallRuntime(ExternalReference(f),
-                        num_arguments_,
-                        f->result_size);
-}
-
-
 void ArgumentsAccessStub::Generate(MacroAssembler* masm) {
   switch (type_) {
     case READ_LENGTH: GenerateReadLength(masm); break;
     case READ_ELEMENT: GenerateReadElement(masm); break;
     case NEW_OBJECT: GenerateNewObject(masm); break;
   }
 }
 
 
 bool ApiGetterEntryStub::GetCustomCache(Code** code_out) {
   Object* cache = info()->load_stub_cache();
   if (cache->IsUndefined()) {
     return false;
   } else {
     *code_out = Code::cast(cache);
     return true;
   }
 }
 
 
 void ApiGetterEntryStub::SetCustomCache(Code* value) {
   info()->set_load_stub_cache(value);
 }
 
 
+void DebugerStatementStub::Generate(MacroAssembler* masm) {
+  Runtime::Function* f = Runtime::FunctionForId(Runtime::kDebugBreak);
+  masm->TailCallRuntime(ExternalReference(f), 0, f->result_size);
+}
+
+
 } }  // namespace v8::internal