Hydrogenized KeyedLoadGeneric stub: when probing the KeyedLookupCache fails, call the runtime, don'…

src/hydrogen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HYDROGEN_H_
 #define V8_HYDROGEN_H_
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 1457 matching lines @@
 
   HValue* EnforceNumberType(HValue* number, Type* expected);
   HValue* TruncateToNumber(HValue* value, Type** expected);
 
   void FinishExitWithHardDeoptimization(const char* reason);
 
   void AddIncrementCounter(StatsCounter* counter);
 
   class IfBuilder V8_FINAL {
    public:
+    // If using this constructor, Initialize() must be called explicitly!
+    IfBuilder();
+
     explicit IfBuilder(HGraphBuilder* builder);
     IfBuilder(HGraphBuilder* builder,
               HIfContinuation* continuation);
 
     ~IfBuilder() {
       if (!finished_) End();
     }
 
+    void Initialize(HGraphBuilder* builder);
+
     template<class Condition>
     Condition* If(HValue *p) {
       Condition* compare = builder()->New<Condition>(p);
       AddCompare(compare);
       return compare;
     }
 
     template<class Condition, class P2>
     Condition* If(HValue* p1, P2 p2) {
       Condition* compare = builder()->New<Condition>(p1, p2);
@@ skipping 122 matching lines @@
       Deopt(reason);
     }
     void ElseDeopt(const char* reason) {
       Else();
       Deopt(reason);
     }
 
     void Return(HValue* value);
 
    private:
+    void InitializeDontCreateBlocks(HGraphBuilder* builder);
+
     HControlInstruction* AddCompare(HControlInstruction* compare);
 
-    HGraphBuilder* builder() const { return builder_; }
+    HGraphBuilder* builder() const {
+      ASSERT(builder_ != NULL);  // Have you called "Initialize"?
+      return builder_;
+    }
 
     void AddMergeAtJoinBlock(bool deopt);
 
     void Finish();
     void Finish(HBasicBlock** then_continuation,
                 HBasicBlock** else_continuation);
 
     class MergeAtJoinBlock : public ZoneObject {
      public:
       MergeAtJoinBlock(HBasicBlock* block,
@@ skipping 1256 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_