Add fast path smi comparison operators.

runtime/vm/aot_optimizer.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/aot_optimizer.h"
 
 #include "vm/bit_vector.h"
 #include "vm/branch_optimizer.h"
 #include "vm/cha.h"
 #include "vm/compiler.h"
@@ skipping 2470 matching lines @@
         Function::Handle(Z, unary_checks.GetTargetAt(0)).kind();
     if (!InstanceCallNeedsClassCheck(instr, function_kind)) {
       PolymorphicInstanceCallInstr* call =
           new(Z) PolymorphicInstanceCallInstr(instr, unary_checks,
                                               /* with_checks = */ false);
       instr->ReplaceWith(call, current_iterator());
       return;
     }
   }
   switch (instr->token_kind()) {
+    case Token::kEQ:
+    case Token::kLT:
+    case Token::kLTE:
+    case Token::kGT:
+    case Token::kGTE:
     case Token::kBIT_OR:
     case Token::kBIT_XOR:
     case Token::kBIT_AND:
     case Token::kADD:
     case Token::kSUB: {
       if (HasOnlyTwoOf(*instr->ic_data(), kSmiCid)) {
         Definition* left = instr->ArgumentAt(0);
         Definition* right = instr->ArgumentAt(1);
         CheckedSmiOpInstr* smi_op =
             new(Z) CheckedSmiOpInstr(instr->token_kind(),
@@ skipping 287 matching lines @@
 
   // Discard the environment from the original instruction because the store
   // can't deoptimize.
   instr->RemoveEnvironment();
   ReplaceCall(instr, store);
   return true;
 }
 
 
 }  // namespace dart