Introduce a lazy-compile stub for functions.

runtime/vm/stub_code.h

 // Copyright (c) 2011, 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_STUB_CODE_H_
 #define VM_STUB_CODE_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 
 namespace dart {
 
 // Forward declarations.
 class Code;
 class Isolate;
 class ObjectPointerVisitor;
 class RawCode;
 
 
 // List of stubs created in the VM isolate, these stubs are shared by different
 // isolates running in this dart process.
 #define VM_STUB_CODE_LIST(V)                                                   \
   V(PrintStopMessage)                                                          \
   V(CallToRuntime)                                                             \
+  V(LazyCompile)                                                               \
   V(CallBootstrapCFunction)                                                    \
   V(CallNativeCFunction)                                                       \
   V(AllocateArray)                                                             \
   V(CallNoSuchMethodFunction)                                                  \
   V(InstanceFunctionLookup)                                                    \
   V(CallStaticFunction)                                                        \
   V(CallClosureFunction)                                                       \
   V(FixCallersTarget)                                                          \
   V(Deoptimize)                                                                \
   V(DeoptimizeLazy)                                                            \
   V(BreakpointRuntime)                                                         \
   V(DebugStepCheck)                                                            \
   V(Subtype1TestCache)                                                         \
   V(Subtype2TestCache)                                                         \
   V(Subtype3TestCache)                                                         \
   V(GetStackPointer)                                                           \
   V(JumpToExceptionHandler)                                                    \
   V(UnoptimizedIdenticalWithNumberCheck)                                       \
   V(OptimizedIdenticalWithNumberCheck)                                         \
-  V(CompileFunctionRuntimeCall)                                                \
 
 // Is it permitted for the stubs above to refer to Object::null(), which is
 // allocated in the VM isolate and shared across all isolates.
 // However, in cases where a simple GC-safe placeholder is needed on the stack,
 // using Smi 0 instead of Object::null() is slightly more efficient, since a Smi
 // does not require relocation.
 
 // List of stubs created per isolate, these stubs could potentially contain
 // embedded objects and hence cannot be shared across isolates.
 #define STUB_CODE_LIST(V)                                                      \
@@ skipping 14 matching lines @@
 
 // class StubEntry is used to describe stub methods generated in dart to
 // abstract out common code executed from generated dart code.
 class StubEntry {
  public:
   StubEntry(const char* name, const Code& code);
   ~StubEntry() {}
 
   const ExternalLabel& label() const { return label_; }
   uword EntryPoint() const { return entry_point_; }
+  RawCode* code() const { return code_; }
   intptr_t Size() const { return size_; }
 
   // Visit all object pointers.
   void VisitObjectPointers(ObjectPointerVisitor* visitor);
 
  private:
   RawCode* code_;
   uword entry_point_;
   intptr_t size_;
   ExternalLabel label_;
@@ skipping 114 matching lines @@
       Assembler* assembler,
       const Register left,
       const Register right,
       const Register temp1 = kNoRegister,
       const Register temp2 = kNoRegister);
 };
 
 }  // namespace dart
 
 #endif  // VM_STUB_CODE_H_