Eliminate condition type check when possible.

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
===================================================================
--- runtime/vm/intermediate_language.h	(revision 10606)
+++ runtime/vm/intermediate_language.h	(working copy)
@@ -454,7 +454,8 @@
                     intptr_t try_index,
                     Value* value)
       : token_pos_(token_pos),
-        try_index_(try_index) {
+        try_index_(try_index),
+        eliminated_(false) {
     ASSERT(value != NULL);
     inputs_[0] = value;
   }
@@ -465,11 +466,22 @@
   intptr_t try_index() const { return try_index_; }
   Value* value() const { return inputs_[0]; }
 
+  bool IsEliminated() const {

[srdjan, 2012/08/13 22:14:18]

s/IsEliminated/is_eliminated_.

[regis, 2012/08/13 22:23:49]

Done.

+    return eliminated_;
+  }
+  void Eliminate() {

[srdjan, 2012/08/13 22:14:18]

s/Eliminate/eliminate/

[regis, 2012/08/13 22:23:49]

Done.

+    ASSERT(!eliminated_);
+    eliminated_ = true;
+  }
+
+  virtual void PrintOperandsTo(BufferFormatter* f) const;
+
   virtual bool CanDeoptimize() const { return false; }
 
  private:
   const intptr_t token_pos_;
   const intptr_t try_index_;
+  bool eliminated_;

[srdjan, 2012/08/13 22:14:18]

s/eliminated_/is_eleminated_/

[regis, 2012/08/13 22:23:49]

Done.

 
   DISALLOW_COPY_AND_ASSIGN(AssertBooleanComp);
 };