Cache lookups at megamorphic call sites in optimized code.

runtime/vm/code_generator.h

 // 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.
 
 #ifndef VM_CODE_GENERATOR_H_
 #define VM_CODE_GENERATOR_H_
 
 #include "vm/globals.h"
 #include "vm/runtime_entry.h"
 
@@ skipping 19 matching lines @@
 DECLARE_RUNTIME_ENTRY(CloneContext);
 DECLARE_RUNTIME_ENTRY(Deoptimize);
 DECLARE_RUNTIME_ENTRY(FixCallersTarget);
 DECLARE_RUNTIME_ENTRY(InlineCacheMissHandlerOneArg);
 DECLARE_RUNTIME_ENTRY(InlineCacheMissHandlerTwoArgs);
 DECLARE_RUNTIME_ENTRY(InlineCacheMissHandlerThreeArgs);
 DECLARE_RUNTIME_ENTRY(Instanceof);
 DECLARE_RUNTIME_ENTRY(InstantiateTypeArguments);
 DECLARE_RUNTIME_ENTRY(InvokeImplicitClosureFunction);
 DECLARE_RUNTIME_ENTRY(InvokeNoSuchMethodFunction);
+DECLARE_RUNTIME_ENTRY(MegamorphicCacheMissHandler);
 DECLARE_RUNTIME_ENTRY(OptimizeInvokedFunction);
 DECLARE_RUNTIME_ENTRY(TraceICCall);
 DECLARE_RUNTIME_ENTRY(PatchStaticCall);
 DECLARE_RUNTIME_ENTRY(ReportObjectNotClosure);
 DECLARE_RUNTIME_ENTRY(ResolveCompileInstanceFunction);
 DECLARE_RUNTIME_ENTRY(ResolveImplicitClosureFunction);
 DECLARE_RUNTIME_ENTRY(ResolveImplicitClosureThroughGetter);
 DECLARE_RUNTIME_ENTRY(ReThrow);
 DECLARE_RUNTIME_ENTRY(StackOverflow);
 DECLARE_RUNTIME_ENTRY(Throw);
@@ skipping 39 matching lines @@
     const Instance& receiver,
     const ICData& ic_data,
     const ArgumentsDescriptor& arguments_descriptor);
 
 void DeoptimizeAll();
 void DeoptimizeIfOwner(const GrowableArray<intptr_t>& classes);
 
 }  // namespace dart
 
 #endif  // VM_CODE_GENERATOR_H_