Reland 21774: Generate KeyedLoadGeneric with Hydrogen

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 6a6aef0b38e992f1c7aaee302e6ab04453196d65..03a8176c63abd03548539c071f97befc9928fb40 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1261,6 +1261,8 @@ class HGraphBuilder {
   HBasicBlock* CreateBasicBlock(HEnvironment* env);
   HBasicBlock* CreateLoopHeaderBlock();
 
+  HValue* BuildGetElementsKind(HValue* object);
+
   HValue* BuildCheckHeapObject(HValue* object);
   HValue* BuildCheckMap(HValue* obj, Handle<Map> map);
   HValue* BuildCheckString(HValue* string);
@@ -1287,8 +1289,34 @@ class HGraphBuilder {
 
   HValue* BuildNumberToString(HValue* object, Handle<Type> type);
 
+  void BuildReceiverCheck(HValue* receiver,
+                          int bit_field_mask);
+
+  HValue* BuildHashToIndex(HValue *hash);

[Toon Verwaest, 2013/12/04 17:29:26]

nit: move * to HValue.

[danno, 2014/06/06 15:43:51]

Done.

+
+  // Checks a key value that's being used for a keyed element access context. If
+  // the key is a index, i.e. a smi or a number in a unique string with a cached
+  // numeric value, the "true" of the continuation is joined. Otherwise,
+  // if the key is a name or a unique string, the "false" of the continuation is
+  // joined. Otherwise, a deoptimization is triggered. In both paths of the
+  // continuation, the key is pushed on the top of the environment.
+  void BuildKeyedIndexCheck(HValue* key,
+                            HIfContinuation* join_continuation);
+
+  // Checks the properties of an object if they are in dictionary case, in which
+  // case "true" of continuation is taken, otherwise the "false"
+  void BuildCheckForDictionaryProperties(HValue* object,
+                                         HIfContinuation* continuation);
+
+  void BuildGlobalInstanceTypeCheck(HValue* receiver);
+
+  HValue* BuildKeyedLookupCacheHash(HValue* object,
+                                    HValue* key);
+
   HValue* BuildUncheckedDictionaryElementLoad(HValue* receiver,
-                                              HValue* key);
+                                              HValue* elements,
+                                              HValue* key,
+                                              HValue* hash);
 
   // Computes the size for a sequential string of the given length and encoding.
   HValue* BuildSeqStringSizeFor(HValue* length,
@@ -1605,6 +1633,27 @@ class HGraphBuilder {
     bool finished_;
   };
 
+  template <class A, class P1>
+  void DeoptimizeIf(P1 p1, char* const reason) {
+    IfBuilder builder(this);
+    builder.If<A>(p1);
+    builder.ThenDeopt(reason);
+  }
+
+  template <class A, class P1, class P2>
+  void DeoptimizeIf(P1 p1, P2 p2, const char* reason) {
+    IfBuilder builder(this);
+    builder.If<A>(p1, p2);
+    builder.ThenDeopt(reason);
+  }
+
+  template <class A, class P1, class P2, class P3>
+  void DeoptimizeIf(P1 p1, P2 p2, P3 p3, const char* reason) {
+    IfBuilder builder(this);
+    builder.If<A>(p1, p2, p3);
+    builder.ThenDeopt(reason);
+  }
+
   HValue* BuildNewElementsCapacity(HValue* old_capacity);
 
   void BuildNewSpaceArrayCheck(HValue* length,