More ICData cleanups: try to use ICData instead of converting it to another intermediate representa…

runtime/vm/code_generator.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/code_generator.h"
 
 #include "vm/assembler_macros.h"
 #include "vm/code_patcher.h"
 #include "vm/compiler.h"
 #include "vm/dart_api_impl.h"
@@ skipping 938 matching lines @@
       if (class_ids[k] != Class::Handle(args[k]->clazz()).id()) {
         matches = false;
         break;
       }
     }
     // Do not add an entry twice!
     ASSERT(!matches);
   }
 #endif  // DEBUG
 
-  GrowableArray<intptr_t> class_ids;
-  ASSERT(ic_data.num_args_tested() == args.length());
-  for (intptr_t i = 0; i < args.length(); i++) {
-    class_ids.Add(Class::Handle(args[i]->clazz()).id());
+  if (args.length() == 1) {
+    ic_data.AddReceiverCheck(Class::Handle(args[0]->clazz()).id(),
+                             target_function);
+  } else {
+    GrowableArray<intptr_t> class_ids;
+    ASSERT(ic_data.num_args_tested() == args.length());
+    for (intptr_t i = 0; i < args.length(); i++) {
+      class_ids.Add(Class::Handle(args[i]->clazz()).id());
+    }
+    ic_data.AddCheck(class_ids, target_function);
   }
-  ic_data.AddCheck(class_ids, target_function);
   if (FLAG_trace_ic) {
     OS::Print("InlineCacheMissHandler %d call at 0x%x' "
               "adding <%s> id:%d -> <%s>\n",
         args.length(),
         caller_frame->pc(),
         Class::Handle(receiver.clazz()).ToCString(),
         Class::Handle(receiver.clazz()).id(),
         target_function.ToCString());
   }
   return target_function.raw();
@@ skipping 613 matching lines @@
 // Adds a pointer to the store buffer.
 // Arg0: the address of a field being stored into
 DEFINE_LEAF_RUNTIME_ENTRY(StoreBuffer, 1) {
   ASSERT(args.Count() == kStoreBufferRuntimeEntry.argument_count());
   uword ptr = reinterpret_cast<uword>(args.At(0));
   isolate->store_buffer()->AddPointer(ptr);
   return Smi::New(0);  // Just an arbitrary RawObject* value.
 }
 
 }  // namespace dart