Add fast Smi op version of switchable instance calls.

runtime/vm/stub_code_ia32.cc

 // Copyright (c) 2013, 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/globals.h"
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 2004 matching lines @@
   const Register left = EAX;
   const Register right = EDX;
   const Register temp = ECX;
   __ movl(left, Address(ESP, 2 * kWordSize));
   __ movl(right, Address(ESP, 1 * kWordSize));
   GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp);
   __ ret();
 }
 
 
+// Called from megamorphic calls.
+//  EBX: receiver
+//  ECX: MegamorphicCache (preserved)
+// Result:
+//  EBX: target entry point
+//  EDX: argument descriptor
 void StubCode::EmitMegamorphicLookup(Assembler* assembler) {
   __ LoadTaggedClassIdMayBeSmi(EAX, EBX);
   // EAX: class ID of the receiver (smi).
   __ movl(EDI, FieldAddress(ECX, MegamorphicCache::buckets_offset()));
   __ movl(EBX, FieldAddress(ECX, MegamorphicCache::mask_offset()));
   // EDI: cache buckets array.
   // EBX: mask.
   __ pushl(ECX);  // Spill MegamorphicCache.
   __ movl(ECX, EAX);
   // ECX: probe.
@@ skipping 21 matching lines @@
   // illegal class id was found, the target is a cache miss handler that can
   // be invoked as a normal Dart function.
   __ movl(EAX, FieldAddress(EDI, ECX, TIMES_4, base + kWordSize));
   __ popl(ECX);  // Restore MegamorphicCache.
   __ movl(EDX,
           FieldAddress(ECX, MegamorphicCache::arguments_descriptor_offset()));
   __ movl(EBX, FieldAddress(EAX, Function::entry_point_offset()));
 }
 
 
-// Called from megamorphic calls.
-//  EBX: receiver
-//  ECX: MegamorphicCache (preserved)
-// Result:
-//  EBX: target entry point
-//  EDX: argument descriptor
 void StubCode::GenerateMegamorphicLookupStub(Assembler* assembler) {
   EmitMegamorphicLookup(assembler);
   __ ret();
 }
 
 
 // Called from switchable IC calls.
 //  EBX: receiver
 //  ECX: ICData (preserved)
 // Result:
 //  EBX: target entry point
 //  EDX: arguments descriptor
 void StubCode::GenerateICLookupStub(Assembler* assembler) {
   __ int3();
 }
 
+
+void StubCode::GenerateICSmiAddLookupStub(Assembler* assembler) {
+  __ int3();
+}
+
+
+void StubCode::GenerateICSmiSubLookupStub(Assembler* assembler) {
+  __ int3();
+}
+
+
+void StubCode::GenerateICSmiEqualLookupStub(Assembler* assembler) {
+  __ int3();
+}
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32