More check elimination improvements including partial learning on false branches of CompareMap and b

src/hydrogen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 156 matching lines @@
   bool IsUnreachable() const { return !is_reachable_; }
   bool IsReachable() const { return is_reachable_; }
 
   bool IsLoopSuccessorDominator() const {
     return dominates_loop_successors_;
   }
   void MarkAsLoopSuccessorDominator() {
     dominates_loop_successors_ = true;
   }
 
+  void MarkSuccEdgeUnreachable(int succ);
+
   inline Zone* zone() const;
 
 #ifdef DEBUG
   void Verify();
 #endif
 
  protected:
   friend class HGraphBuilder;
 
   HSimulate* CreateSimulate(BailoutId ast_id, RemovableSimulate removable);
@@ skipping 2550 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_