X64 Crankshaft: Implement DoCodeStub on X64 platform.

src/x64/lithium-x64.cc

 // Copyright 2011 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 1729 matching lines @@
 }
 
 
 LInstruction* LChunkBuilder::DoUnknownOSRValue(HUnknownOSRValue* instr) {
   Abort("Unimplemented: %s", "DoUnknownOSRValue");
   return NULL;
 }
 
 
 LInstruction* LChunkBuilder::DoCallStub(HCallStub* instr) {
-  Abort("Unimplemented: %s", "DoCallStub");
-  return NULL;
+  argument_count_ -= instr->argument_count();
+  return MarkAsCall(DefineFixed(new LCallStub, rax), instr);
 }
 
 
 LInstruction* LChunkBuilder::DoArgumentsObject(HArgumentsObject* instr) {
   Abort("Unimplemented: %s", "DoArgumentsObject");
   return NULL;
 }
 
 
 LInstruction* LChunkBuilder::DoAccessArgumentsAt(HAccessArgumentsAt* instr) {
@@ skipping 65 matching lines @@
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
   HEnvironment* outer = current_block_->last_environment()->outer();
   current_block_->UpdateEnvironment(outer);
   return NULL;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64