Use PropertyAccessInfo to compute stores in crankshaft.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 69753d78fb32437af44ec213f7a36330e17b5bff..7eb2c84f024eb5efa79696eb43513a05cf45f60a 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -2264,13 +2264,16 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
 
   void VisitDataViewInitialize(CallRuntime* expr);
 
+  enum PropertyAccessType { LOAD, STORE };
   class PropertyAccessInfo {
    public:
     PropertyAccessInfo(HOptimizedGraphBuilder* builder,
+                       PropertyAccessType access_type,
                        Type* type,
                        Handle<String> name)
         : lookup_(builder->isolate()),
           builder_(builder),
+          access_type_(access_type),
           type_(type),
           name_(name),
           access_(HObjectAccess::ForMap()) { }
@@ -2278,7 +2281,7 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
     // Checkes whether this PropertyAccessInfo can be handled as a monomorphic
     // load named. It additionally fills in the fields necessary to generate the
     // lookup code.
-    bool CanLoadMonomorphic();
+    bool CanAccessMonomorphic();
 
     // Checks whether all types behave uniform when loading name. If all maps
     // behave the same, a single monomorphic load instruction can be emitted,
@@ -2286,7 +2289,7 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
     // an instance of any of the types.
     // This method skips the first type in types, assuming that this
     // PropertyAccessInfo is built for types->first().
-    bool CanLoadAsMonomorphic(SmallMapList* types);
+    bool CanAccessAsMonomorphic(SmallMapList* types);
 
     Handle<Map> map() {
       if (type_->Is(Type::Number())) {
@@ -2337,6 +2340,7 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
     Handle<JSObject> holder() { return holder_; }
     Handle<JSFunction> accessor() { return accessor_; }
     Handle<Object> constant() { return constant_; }
+    Handle<Object> transition() { return transition_; }
     HObjectAccess access() { return access_; }
 
    private:
@@ -2352,7 +2356,8 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
     bool LoadResult(Handle<Map> map);
     bool LookupDescriptor();
     bool LookupInPrototypes();
-    bool IsCompatibleForLoad(PropertyAccessInfo* other);
+    bool IsCompatible(PropertyAccessInfo* other);
+    bool IsLoad() const { return access_type_ == LOAD; }
 
     void GeneralizeRepresentation(Representation r) {
       access_ = access_.WithRepresentation(
@@ -2361,11 +2366,13 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
 
     LookupResult lookup_;
     HOptimizedGraphBuilder* builder_;
+    PropertyAccessType access_type_;
     Type* type_;
     Handle<String> name_;
     Handle<JSObject> holder_;
     Handle<JSFunction> accessor_;
     Handle<Object> constant_;
+    Handle<Map> transition_;
     HObjectAccess access_;
   };
 
@@ -2376,12 +2383,15 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
                                      BailoutId return_id,
                                      bool can_inline_accessor = true);
 
+  HInstruction* BuildStoreMonomorphic(PropertyAccessInfo* info,
+                                      HValue* checked_object,
+                                      HValue* value,
+                                      BailoutId ast_id,
+                                      BailoutId return_id,
+                                      bool can_inline_accessor = true);
+
   void HandlePolymorphicStoreNamedField(BailoutId assignment_id,
-                                        HValue* object,
-                                        HValue* value,
-                                        SmallMapList* types,
-                                        Handle<String> name);
-  bool TryStorePolymorphicAsMonomorphic(BailoutId assignment_id,
+                                        BailoutId return_id,
                                         HValue* object,
                                         HValue* value,
                                         SmallMapList* types,
@@ -2472,18 +2482,13 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
                   BailoutId return_id,
                   bool is_uninitialized = false);
 
-  HInstruction* BuildStoreNamedField(HValue* object,
-                                     Handle<String> name,
-                                     HValue* value,
-                                     Handle<Map> map,
-                                     LookupResult* lookup);
+  HInstruction* BuildStoreNamedField(PropertyAccessInfo* info,
+                                     HValue* checked_object,
+                                     HValue* value);
   HInstruction* BuildStoreNamedGeneric(HValue* object,
                                        Handle<String> name,
-                                       HValue* value);
-  HInstruction* BuildStoreNamedMonomorphic(HValue* object,
-                                           Handle<String> name,
-                                           HValue* value,
-                                           Handle<Map> map);
+                                       HValue* value,
+                                       bool is_uninitialized = false);
   HInstruction* BuildStoreKeyedGeneric(HValue* object,
                                        HValue* key,
                                        HValue* value);