Improve equality operation (inline, direct calls).

runtime/vm/intermediate_language.h

 // Copyright (c) 2012, 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_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
 #include "vm/handles_impl.h"
 #include "vm/object.h"
 
 namespace dart {
 
 class BitVector;
 class FlowGraphCompiler;
 class FlowGraphVisitor;
+class Function;
 class LocalVariable;
 class LocationSummary;
 
 // M is a two argument macro.  It is applied to each concrete value's
 // typename and classname.
 #define FOR_EACH_VALUE(M)                                                      \
   M(Use, UseVal)                                                               \
   M(Constant, ConstantVal)                                                     \
 
 
@@ skipping 576 matching lines @@
 
 class EqualityCompareComp : public ComparisonComp {
  public:
   EqualityCompareComp(intptr_t token_index,
                       intptr_t try_index,
                       Value* left,
                       Value* right)
       : ComparisonComp(left, right),
         token_index_(token_index),
         try_index_(try_index),
-        operands_class_id_(kObject) {
+        class_ids_(NULL),
+        targets_(NULL) {
   }
 
   DECLARE_COMPUTATION(EqualityCompare)
 
   intptr_t token_index() const { return token_index_; }
   intptr_t try_index() const { return try_index_; }
-  void set_operands_class_id(intptr_t value) {
-    operands_class_id_ = value;
+  void SetPolymorphicTargets(ZoneGrowableArray<intptr_t>* class_ids,
+                             ZoneGrowableArray<Function*>* targets) {
+    class_ids_ = class_ids;
+    targets_ = targets;
+    ASSERT(targets_ != NULL);
+    ASSERT(class_ids_ != NULL);
   }
-  intptr_t operands_class_id() const { return operands_class_id_; }
+  intptr_t NumTargets() const {
+    return class_ids_ == NULL ? 0 : class_ids_->length();
+  }
+  Function* TargetAt(intptr_t ix) const { return (*targets_)[ix]; }
+  intptr_t ClassIdAt(intptr_t ix) const { return (*class_ids_)[ix]; }
 
   virtual void PrintOperandsTo(BufferFormatter* f) const;
 
  private:
   const intptr_t token_index_;
   const intptr_t try_index_;
-  intptr_t operands_class_id_;  // class id of both operands.
+  ZoneGrowableArray<intptr_t>* class_ids_;
+  ZoneGrowableArray<Function*>* targets_;
 
   DISALLOW_COPY_AND_ASSIGN(EqualityCompareComp);
 };
 
 
 class RelationalOpComp : public ComparisonComp {
  public:
   RelationalOpComp(intptr_t token_index,
                    intptr_t try_index,
                    Token::Kind kind,
@@ skipping 1727 matching lines @@
   const GrowableArray<BlockEntryInstr*>& block_order_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_