Faster IC stubs by specializing them for Binary Smi operations

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"
 
@@ skipping 39 matching lines @@
 // 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)                                                      \
   V(AllocateArray)                                                             \
   V(CallNoSuchMethodFunction)                                                  \
   V(AllocateContext)                                                           \
   V(UpdateStoreBuffer)                                                         \
   V(OneArgCheckInlineCache)                                                    \
   V(TwoArgsCheckInlineCache)                                                   \
   V(ThreeArgsCheckInlineCache)                                                 \
+  V(SmiAddInlineCache)                                                         \
+  V(SmiSubInlineCache)                                                         \
+  V(SmiEqualInlineCache)                                                       \
   V(OneArgOptimizedCheckInlineCache)                                           \
   V(TwoArgsOptimizedCheckInlineCache)                                          \
   V(ThreeArgsOptimizedCheckInlineCache)                                        \
   V(ClosureCallInlineCache)                                                    \
   V(ZeroArgsUnoptimizedStaticCall)                                             \
   V(TwoArgsUnoptimizedStaticCall)                                              \
   V(OptimizeFunction)                                                          \
   V(InvokeDartCode)                                                            \
 
 // class StubEntry is used to describe stub methods generated in dart to
@@ skipping 122 matching lines @@
   // code executable area.
   static RawCode* Generate(const char* name,
                            void (*GenerateStub)(Assembler* assembler));
 
   static void GenerateMegamorphicMissStub(Assembler* assembler);
   static void GenerateAllocationStubForClass(Assembler* assembler,
                                              const Class& cls);
   static void GenerateNArgsCheckInlineCacheStub(
       Assembler* assembler,
       intptr_t num_args,
-      const RuntimeEntry& handle_ic_miss);
+      const RuntimeEntry& handle_ic_miss,
+      Token::Kind kind);
   static void GenerateUsageCounterIncrement(Assembler* assembler,
                                             Register temp_reg);
   static void GenerateOptimizedUsageCounterIncrement(Assembler* assembler);
 
   static void GenerateIdenticalWithNumberCheckStub(
       Assembler* assembler,
       const Register left,
       const Register right,
       const Register temp1 = kNoRegister,
       const Register temp2 = kNoRegister);
 };
 
 }  // namespace dart
 
 #endif  // VM_STUB_CODE_H_