Lattice-based representation inference, powered by left/right specific type feedback for BinaryOps …

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 802ac65962501dfa47db0f43f4e4de95c984a145..6fb930973cc859e08b31f20deb4b09cba9aab43e 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -1777,9 +1777,6 @@ class CompareOperation: public Expression {
 
   // Type feedback information.
   TypeFeedbackId CompareOperationFeedbackId() const { return reuse(id()); }
-  void RecordTypeFeedback(TypeFeedbackOracle* oracle);
-  bool IsSmiCompare() { return compare_type_ == SMI_ONLY; }
-  bool IsObjectCompare() { return compare_type_ == OBJECT_ONLY; }
 
   // Match special cases.
   bool IsLiteralCompareTypeof(Expression** expr, Handle<String>* check);
@@ -1796,8 +1793,7 @@ class CompareOperation: public Expression {
         op_(op),
         left_(left),
         right_(right),
-        pos_(pos),
-        compare_type_(NONE) {
+        pos_(pos) {
     ASSERT(Token::IsCompareOp(op));
   }
 
@@ -1806,9 +1802,6 @@ class CompareOperation: public Expression {
   Expression* left_;
   Expression* right_;
   int pos_;
-
-  enum CompareTypeFeedback { NONE, SMI_ONLY, OBJECT_ONLY };
-  CompareTypeFeedback compare_type_;
 };