Revert "Fix misoptimization of 'is' test"

runtime/vm/intermediate_language.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/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/bootstrap.h"
 #include "vm/compiler.h"
 #include "vm/constant_propagator.h"
@@ skipping 2718 matching lines @@
     const Object& constant_value = value()->BoundConstant();
     if (constant_value.IsSmi() &&
         cids_.Contains(Smi::Cast(constant_value).Value())) {
       return NULL;
     }
   }
   return this;
 }
 
 
-TestCidsInstr::TestCidsInstr(TokenPosition token_pos,
-                             Token::Kind kind,
-                             Value* value,
-                             const ZoneGrowableArray<intptr_t>& cid_results,
-                             intptr_t deopt_id)
-    : TemplateComparison(token_pos, kind, deopt_id),
-      cid_results_(cid_results),
-      licm_hoisted_(false) {
-  ASSERT((kind == Token::kIS) || (kind == Token::kISNOT));
-  SetInputAt(0, value);
-  set_operation_cid(kObjectCid);
-#ifdef DEBUG
-  ASSERT(cid_results[0] == kSmiCid);
-  if (deopt_id == Thread::kNoDeoptId) {
-    // The entry for Smi can be special, but all other entries have
-    // to match in the no-deopt case.
-    for (intptr_t i = 4; i < cid_results.length(); i += 2) {
-      ASSERT(cid_results[i + 1] == cid_results[3]);
-    }
-  }
-#endif
-}
-
-
 Definition* TestCidsInstr::Canonicalize(FlowGraph* flow_graph) {
   CompileType* in_type = left()->Type();
   intptr_t cid = in_type->ToCid();
   if (cid == kDynamicCid) return this;
 
   const ZoneGrowableArray<intptr_t>& data = cid_results();
   const intptr_t true_result = (kind() == Token::kIS) ? 1 : 0;
   for (intptr_t i = 0; i < data.length(); i += 2) {
     if (data[i] == cid) {
       return (data[i + 1] == true_result)
@@ skipping 1582 matching lines @@
                      "native function '%s' (%" Pd " arguments) cannot be found",
                      native_name().ToCString(), function().NumParameters());
   }
   set_is_auto_scope(auto_setup_scope);
   set_native_c_function(native_function);
 }
 
 #undef __
 
 }  // namespace dart