Implement '==', '!=' and instanceof (without code generation).

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"
@@ skipping 17 matching lines @@
 // | LoadLocal <LocalVariable>
 // | StoreLocal <LocalVariable> <Value>
 // | StrictCompare <Token::kind> <Value> <Value>
 // | NativeCall <NativeBodyNode>
 // | StoreIndexed <StoreIndexedNode> <Value> <Value> <Value>
 // | InstanceSetter <InstanceSetterNode> <Value> <Value>
 // | LoadInstanceField <LoadInstanceFieldNode> <Value>
 // | StoreInstanceField <StoreInstanceFieldNode> <Value> <Value>
 // | LoadStaticField <Field>
 // | StoreStaticField <StoreStaticFieldNode> <Value>
+// | BooleanNegate <Value>
+// | InstanceOf <Value> <Type>
 //
 // <Value> ::=
 //   Temp <int>
 // | Constant <Instance>
 
 // M is a two argument macro.  It is applied to each concrete value's
 // typename and classname.
 #define FOR_EACH_VALUE(M)                                                      \
   M(Temp, TempVal)                                                             \
   M(Constant, ConstantVal)                                                     \
@@ skipping 10 matching lines @@
   M(StaticCall, StaticCallComp)                                                \
   M(LoadLocal, LoadLocalComp)                                                  \
   M(StoreLocal, StoreLocalComp)                                                \
   M(StrictCompare, StrictCompareComp)                                          \
   M(NativeCall, NativeCallComp)                                                \
   M(StoreIndexed, StoreIndexedComp)                                            \
   M(InstanceSetter, InstanceSetterComp)                                        \
   M(LoadInstanceField, LoadInstanceFieldComp)                                  \
   M(StoreInstanceField, StoreInstanceFieldComp)                                \
   M(LoadStaticField, LoadStaticFieldComp)                                      \
-  M(StoreStaticField, StoreStaticFieldComp)
+  M(StoreStaticField, StoreStaticFieldComp)                                    \
+  M(BooleanNegate, BooleanNegateComp)                                          \
+  M(InstanceOf, InstanceOfComp)
 
 
 #define FORWARD_DECLARATION(ShortName, ClassName) class ClassName;
 FOR_EACH_COMPUTATION(FORWARD_DECLARATION)
 #undef FORWARD_DECLARATION
 
 class Computation : public ZoneAllocated {
  public:
   Computation() { }
 
@@ skipping 401 matching lines @@
 
  private:
   const InstanceSetterNode& ast_node_;
   Value* receiver_;
   Value* value_;
 
   DISALLOW_COPY_AND_ASSIGN(InstanceSetterComp);
 };
 
 
+// Note overrideable, built-in: value? false : true.
+class BooleanNegateComp : public Computation {
+ public:
+  explicit BooleanNegateComp(Value* value) : value_(value) {}
+
+  DECLARE_COMPUTATION(BooleanNegateComp)
+
+  Value* value() const { return value_; }
+
+ private:
+  Value* value_;
+
+  DISALLOW_COPY_AND_ASSIGN(BooleanNegateComp);
+};
+
+
+class InstanceOfComp : public Computation {
+ public:
+  InstanceOfComp(intptr_t node_id,
+                 intptr_t token_index,
+                 Value* value,
+                 const AbstractType& type,
+                 bool negate_result)
+      : node_id_(node_id),
+        token_index_(token_index),
+        value_(value),
+        type_(type),
+        negate_result_(negate_result) {}
+
+  DECLARE_COMPUTATION(InstanceOfComp)
+
+  Value* value() const { return value_; }
+  bool negate_result() const { return negate_result_; }
+  const AbstractType& type() const { return type_; }
+
+ private:
+  const intptr_t node_id_;
+  const intptr_t token_index_;
+  Value* value_;
+  const AbstractType& type_;
+  const bool negate_result_;
+
+  DISALLOW_COPY_AND_ASSIGN(InstanceOfComp);
+};
+
+
 #undef DECLARE_COMPUTATION
 
 
 // Instructions.
 //
 // <Instruction> ::= Do <Computation> <Instruction>
 //                 | Bind <int> <Computation> <Instruction>
 //                 | Return <Value>
 //                 | Branch <Value> <Instruction> <Instruction>
 //                 | Empty <Instruction>
@@ skipping 258 matching lines @@
 #undef DECLARE_VISIT_INSTRUCTION
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_