Refactor VisitProperty, add starting point for SIMD.js support.

src/typing-asm.h

Index: src/typing-asm.h
diff --git a/src/typing-asm.h b/src/typing-asm.h
index 5f7a929a1e5bf99e7c8c1d4136ceb3a97e738d49..a4897d9b1f099a138174a841fb21f0eb44ce18d9 100644
--- a/src/typing-asm.h
+++ b/src/typing-asm.h
@@ -22,28 +22,50 @@ class AsmTyper : public AstVisitor {
   explicit AsmTyper(Isolate* isolate, Zone* zone, Script* script,
                     FunctionLiteral* root);
   bool Validate();
+  void set_allow_simd(bool simd);
   const char* error_message() { return error_message_; }
 
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
 
  private:
   Zone* zone_;
+  Isolate* isolate_;
   Script* script_;
   FunctionLiteral* root_;
   bool valid_;
+  bool allow_simd_;
+
+  struct VariableInfo : public ZoneObject {
+    Type* type;
+    bool is_check_function;
+    bool is_constructor_function;

[titzer, 2015/11/25 18:36:42]

Maybe we can mark the stdlib variable right away with a boolean to make the
checks against it cheaper? There should only be one.

[bradn, 2015/11/30 18:22:38]

Done.

+
+    VariableInfo()
+        : type(NULL),
+          is_check_function(false),
+          is_constructor_function(false) {}
+    explicit VariableInfo(Type* t)
+        : type(t), is_check_function(false), is_constructor_function(false) {}
+  };
 
   // Information for bi-directional typing with a cap on nesting depth.
   Type* expected_type_;
   Type* computed_type_;
+  VariableInfo* property_info_;
   int intish_;  // How many ops we've gone without a x|0.
 
   Type* return_type_;  // Return type of last function.
   size_t array_size_;  // Array size of last ArrayLiteral.
 
-  typedef ZoneMap<std::string, Type*> ObjectTypeMap;
+  typedef ZoneMap<std::string, VariableInfo*> ObjectTypeMap;
   ObjectTypeMap stdlib_types_;
   ObjectTypeMap stdlib_heap_types_;
   ObjectTypeMap stdlib_math_types_;
+#define V(NAME, Name, name, lane_count, lane_type) \
+  ObjectTypeMap stdlib_simd_##name##_types_;       \
+  VariableInfo* stdlib_simd_##name##_constructor_type_;
+  SIMD128_TYPES(V)
+#undef V
 
   // Map from Variable* to global/local variable Type*.
   ZoneHashMap global_variable_type_;
@@ -61,23 +83,35 @@ class AsmTyper : public AstVisitor {
   static const int kMaxUncombinedMultiplicativeSteps = 1;
 
   void InitializeStdlib();
+  void InitializeStdlibSIMD();
 
   void VisitDeclarations(ZoneList<Declaration*>* d) override;
   void VisitStatements(ZoneList<Statement*>* s) override;
 
-  void VisitExpressionAnnotation(Expression* e, bool is_return);
+  void VisitExpressionAnnotation(Expression* e, bool is_return,
+                                 Variable* variable);
   void VisitFunctionAnnotation(FunctionLiteral* f);
   void VisitAsmModule(FunctionLiteral* f);
 
   void VisitHeapAccess(Property* expr);
 
+  Expression* AsPropertyObjectWithKey(Expression* expr, const char* name);
+  bool IsMathObject(Expression* expr);
+  bool IsSIMDObject(Expression* expr);
+  bool IsSIMDTypeObject(Expression* expr, const char* name);
+  bool IsStdlibObject(Expression* expr);
+
+  void VisitSIMDProperty(Property* expr);
+
   int ElementShiftSize(Type* type);
   Type* StorageType(Type* type);
 
   void SetType(Variable* variable, Type* type);
   Type* GetType(Variable* variable);
+  VariableInfo* GetVariableInfo(Variable* variable, bool setting);
+  void SetVariableInfo(Variable* variable, const VariableInfo* info);
 
-  Type* LibType(ObjectTypeMap map, Handle<String> name);
+  VariableInfo* LibType(ObjectTypeMap map, Handle<String> name);
 
   void SetResult(Expression* expr, Type* type);
   void IntersectResult(Expression* expr, Type* type);