Revert "Implement structural function and array types"

TBR=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/237963016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/accessors.cc

@@ -126,7 +126,7 @@ bool Accessors::IsJSObjectFieldAccessor(typename T::TypeHandle type,
   }
 
   if (!type->IsClass()) return false;
-  Handle<Map> map = type->AsClass()->Map();
+  Handle<Map> map = type->AsClass();
 
   switch (map->instance_type()) {
     case JS_ARRAY_TYPE:

src/arm/stub-cache-arm.cc

@@ -432,7 +432,7 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = descriptors->GetFieldType(descriptor);
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass()->Map(),
+      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
                   miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
@@ -601,7 +601,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = lookup->GetFieldType();
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass()->Map(),
+      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
                   miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
@@ -850,9 +850,7 @@ Register StubCompiler::CheckPrototypes(Handle<HeapType> type,
   int depth = 0;
 
   Handle<JSObject> current = Handle<JSObject>::null();
-  if (type->IsConstant()) {
-    current = Handle<JSObject>::cast(type->AsConstant()->Value());
-  }
+  if (type->IsConstant()) current = Handle<JSObject>::cast(type->AsConstant());
   Handle<JSObject> prototype = Handle<JSObject>::null();
   Handle<Map> current_map = receiver_map;
   Handle<Map> holder_map(holder->map());

src/arm64/stub-cache-arm64.cc

@@ -394,7 +394,7 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = descriptors->GetFieldType(descriptor);
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass()->Map(),
+      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
                   miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
@@ -550,7 +550,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = lookup->GetFieldType();
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass()->Map(),
+      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
                   miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
@@ -802,7 +802,7 @@ Register StubCompiler::CheckPrototypes(Handle<HeapType> type,
 
   Handle<JSObject> current = Handle<JSObject>::null();
   if (type->IsConstant()) {
-    current = Handle<JSObject>::cast(type->AsConstant()->Value());
+    current = Handle<JSObject>::cast(type->AsConstant());
   }
   Handle<JSObject> prototype = Handle<JSObject>::null();
   Handle<Map> current_map = receiver_map;

src/hydrogen.cc

@@ -4926,7 +4926,7 @@ void HOptimizedGraphBuilder::VisitVariableProxy(VariableProxy* expr) {
         Handle<PropertyCell> cell(global->GetPropertyCell(&lookup));
         if (cell->type()->IsConstant()) {
           PropertyCell::AddDependentCompilationInfo(cell, top_info());
-          Handle<Object> constant_object = cell->type()->AsConstant()->Value();
+          Handle<Object> constant_object = cell->type()->AsConstant();
           if (constant_object->IsConsString()) {
             constant_object =
                 String::Flatten(Handle<String>::cast(constant_object));
@@ -4999,7 +4999,7 @@ void HOptimizedGraphBuilder::VisitRegExpLiteral(RegExpLiteral* expr) {
 static bool CanInlinePropertyAccess(Type* type) {
   if (type->Is(Type::NumberOrString())) return true;
   if (!type->IsClass()) return false;
-  Handle<Map> map = type->AsClass()->Map();
+  Handle<Map> map = type->AsClass();
   return map->IsJSObjectMap() &&
       !map->is_dictionary_map() &&
       !map->has_named_interceptor();
@@ -5991,7 +5991,7 @@ void HOptimizedGraphBuilder::HandleGlobalVariableAssignment(
     Handle<GlobalObject> global(current_info()->global_object());
     Handle<PropertyCell> cell(global->GetPropertyCell(&lookup));
     if (cell->type()->IsConstant()) {
-      Handle<Object> constant = cell->type()->AsConstant()->Value();
+      Handle<Object> constant = cell->type()->AsConstant();
       if (value->IsConstant()) {
         HConstant* c_value = HConstant::cast(value);
         if (!constant.is_identical_to(c_value->handle(isolate()))) {
@@ -9943,7 +9943,7 @@ HControlInstruction* HOptimizedGraphBuilder::BuildCompareInstruction(
       HValue* operand_to_check =
           left->block()->block_id() < right->block()->block_id() ? left : right;
       if (combined_type->IsClass()) {
-        Handle<Map> map = combined_type->AsClass()->Map();
+        Handle<Map> map = combined_type->AsClass();
         AddCheckMap(operand_to_check, map);
         HCompareObjectEqAndBranch* result =
             New<HCompareObjectEqAndBranch>(left, right);

src/hydrogen.h

@@ -2380,7 +2380,7 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
         context = context->native_context();
         return handle(context->string_function()->initial_map());
       } else {
-        return type_->AsClass()->Map();
+        return type_->AsClass();
       }
     }
     Type* type() const { return type_; }

src/ia32/stub-cache-ia32.cc

@@ -530,8 +530,7 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = descriptors->GetFieldType(descriptor);
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, field_type->AsClass()->Map(),
-                  miss_label, DO_SMI_CHECK);
+      __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
       __ JumpIfSmi(value_reg, miss_label);
@@ -707,8 +706,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = lookup->GetFieldType();
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, field_type->AsClass()->Map(),
-                  miss_label, DO_SMI_CHECK);
+      __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
       __ JumpIfSmi(value_reg, miss_label);
@@ -838,8 +836,7 @@ Register StubCompiler::CheckPrototypes(Handle<HeapType> type,
   int depth = 0;
 
   Handle<JSObject> current = Handle<JSObject>::null();
-  if (type->IsConstant()) current =
-      Handle<JSObject>::cast(type->AsConstant()->Value());
+  if (type->IsConstant()) current = Handle<JSObject>::cast(type->AsConstant());
   Handle<JSObject> prototype = Handle<JSObject>::null();
   Handle<Map> current_map = receiver_map;
   Handle<Map> holder_map(holder->map());

src/ic.cc

@@ -680,8 +680,7 @@ bool IC::UpdatePolymorphicIC(Handle<HeapType> type,
 
   for (int i = 0; i < number_of_types; i++) {
     Handle<HeapType> current_type = types.at(i);
-    if (current_type->IsClass() &&
-        current_type->AsClass()->Map()->is_deprecated()) {
+    if (current_type->IsClass() && current_type->AsClass()->is_deprecated()) {
       // Filter out deprecated maps to ensure their instances get migrated.
       ++deprecated_types;
     } else if (type->NowIs(current_type)) {
@@ -692,8 +691,8 @@ bool IC::UpdatePolymorphicIC(Handle<HeapType> type,
     } else if (handler_to_overwrite == -1 &&
                current_type->IsClass() &&
                type->IsClass() &&
-               IsTransitionOfMonomorphicTarget(*current_type->AsClass()->Map(),
-                                               *type->AsClass()->Map())) {
+               IsTransitionOfMonomorphicTarget(*current_type->AsClass(),
+                                               *type->AsClass())) {
       handler_to_overwrite = i;
     }
   }
@@ -735,11 +734,10 @@ Handle<Map> IC::TypeToMap(HeapType* type, Isolate* isolate) {
     return isolate->factory()->heap_number_map();
   if (type->Is(HeapType::Boolean())) return isolate->factory()->boolean_map();
   if (type->IsConstant()) {
-    return handle(
-        Handle<JSGlobalObject>::cast(type->AsConstant()->Value())->map());
+    return handle(Handle<JSGlobalObject>::cast(type->AsConstant())->map());
   }
   ASSERT(type->IsClass());
-  return type->AsClass()->Map();
+  return type->AsClass();
 }
 
 

src/objects-debug.cc

@@ -301,7 +301,7 @@ void JSObject::JSObjectVerify() {
         if (r.IsHeapObject()) ASSERT(value->IsHeapObject());
         HeapType* field_type = descriptors->GetFieldType(i);
         if (field_type->IsClass()) {
-          Map* map = *field_type->AsClass()->Map();
+          Map* map = *field_type->AsClass();
           CHECK(!map->is_stable() || HeapObject::cast(value)->map() == map);
         } else if (r.IsNone()) {
           CHECK(field_type->Is(HeapType::None()));

src/objects-inl.h

@@ -87,6 +87,13 @@ PropertyDetails PropertyDetails::AsDeleted() const {
   }
 
 
+#define FIXED_TYPED_ARRAY_CAST_ACCESSOR(type)   \
+  template<>                                    \
+  type* type::cast(Object* object) {            \
+    SLOW_ASSERT(object->Is##type());            \
+    return reinterpret_cast<type*>(object);     \
+  }
+
 #define INT_ACCESSORS(holder, name, offset)                             \
   int holder::name() { return READ_INT_FIELD(this, offset); }           \
   void holder::set_##name(int value) { WRITE_INT_FIELD(this, offset, value); }

src/stub-cache.cc

@@ -901,7 +901,7 @@ void LoadStubCompiler::NonexistentHandlerFrontend(Handle<HeapType> type,
   // check that the global property cell is empty.
   if (last_map->IsJSGlobalObjectMap()) {
     Handle<JSGlobalObject> global = last.is_null()
-        ? Handle<JSGlobalObject>::cast(type->AsConstant()->Value())
+        ? Handle<JSGlobalObject>::cast(type->AsConstant())
         : Handle<JSGlobalObject>::cast(last);
     GenerateCheckPropertyCell(masm(), global, name, scratch2(), &miss);
   }

src/types-inl.h

@@ -13,34 +13,6 @@
 namespace v8 {
 namespace internal {
 
-// -------------------------------------------------------------------------- //
-// TypeImpl
-
-template<class Config>
-typename TypeImpl<Config>::template Iterator<i::Map>
-TypeImpl<Config>::Classes() {
-  if (this->IsBitset()) return Iterator<i::Map>();
-  return Iterator<i::Map>(Config::handle(this));
-}
-
-
-template<class Config>
-typename TypeImpl<Config>::template Iterator<i::Object>
-TypeImpl<Config>::Constants() {
-  if (this->IsBitset()) return Iterator<i::Object>();
-  return Iterator<i::Object>(Config::handle(this));
-}
-
-
-template<class Config>
-TypeImpl<Config>* TypeImpl<Config>::cast(typename Config::Base* object) {
-  TypeImpl* t = static_cast<TypeImpl*>(object);
-  ASSERT(t->IsBitset() || t->IsClass() || t->IsConstant() ||
-         t->IsUnion() || t->IsArray() || t->IsFunction());
-  return t;
-}
-
-
 template<class Config>
 bool TypeImpl<Config>::NowContains(i::Object* value) {
   DisallowHeapAllocation no_allocation;
@@ -55,23 +27,12 @@ bool TypeImpl<Config>::NowContains(i::Object* value) {
 }
 
 
-// -------------------------------------------------------------------------- //
-// ZoneTypeConfig
-
 // static
-template<class T>
-T* ZoneTypeConfig::handle(T* type) {
+Type* ZoneTypeConfig::handle(Type* type) {
   return type;
 }
 
 
-// static
-template<class T>
-T* ZoneTypeConfig::cast(Type* type) {
-  return static_cast<T*>(type);
-}
-
-
 // static
 bool ZoneTypeConfig::is_bitset(Type* type) {
   return reinterpret_cast<intptr_t>(type) & 1;
@@ -79,20 +40,20 @@ bool ZoneTypeConfig::is_bitset(Type* type) {
 
 
 // static
-bool ZoneTypeConfig::is_struct(Type* type, int tag) {
-  return !is_bitset(type) && struct_tag(as_struct(type)) == tag;
+bool ZoneTypeConfig::is_struct(Type* type) {
+  return !is_bitset(type);
 }
 
 
 // static
 bool ZoneTypeConfig::is_class(Type* type) {
-  return is_struct(type, Type::StructuralType::kClassTag);
+  return is_struct(type) && struct_tag(as_struct(type)) == Type::kClassTag;
 }
 
 
 // static
 bool ZoneTypeConfig::is_constant(Type* type) {
-  return is_struct(type, Type::StructuralType::kConstantTag);
+  return is_struct(type) && struct_tag(as_struct(type)) == Type::kConstantTag;
 }
 
 
@@ -105,7 +66,7 @@ int ZoneTypeConfig::as_bitset(Type* type) {
 
 // static
 ZoneTypeConfig::Struct* ZoneTypeConfig::as_struct(Type* type) {
-  ASSERT(!is_bitset(type));
+  ASSERT(is_struct(type));
   return reinterpret_cast<Struct*>(type);
 }
 
@@ -146,7 +107,7 @@ ZoneTypeConfig::Type* ZoneTypeConfig::from_struct(Struct* structured) {
 // static
 ZoneTypeConfig::Type* ZoneTypeConfig::from_class(
     i::Handle<i::Map> map, int lub, Zone* zone) {
-  Struct* structured = struct_create(Type::StructuralType::kClassTag, 2, zone);
+  Struct* structured = struct_create(Type::kClassTag, 2, zone);
   structured[2] = from_bitset(lub);
   structured[3] = map.location();
   return from_struct(structured);
@@ -156,8 +117,7 @@ ZoneTypeConfig::Type* ZoneTypeConfig::from_class(
 // static
 ZoneTypeConfig::Type* ZoneTypeConfig::from_constant(
     i::Handle<i::Object> value, int lub, Zone* zone) {
-  Struct* structured =
-      struct_create(Type::StructuralType::kConstantTag, 2, zone);
+  Struct* structured = struct_create(Type::kConstantTag, 2, zone);
   structured[2] = from_bitset(lub);
   structured[3] = value.location();
   return from_struct(structured);
@@ -214,24 +174,14 @@ int ZoneTypeConfig::lub_bitset(Type* type) {
   return as_bitset(struct_get(as_struct(type), 0));
 }
 
-
 // -------------------------------------------------------------------------- //
-// HeapTypeConfig
 
 // static
-template<class T>
-i::Handle<T> HeapTypeConfig::handle(T* type) {
+i::Handle<HeapTypeConfig::Type> HeapTypeConfig::handle(Type* type) {
   return i::handle(type, i::HeapObject::cast(type)->GetIsolate());
 }
 
 
-// static
-template<class T>
-i::Handle<T> HeapTypeConfig::cast(i::Handle<Type> type) {
-  return i::Handle<T>::cast(type);
-}
-
-
 // static
 bool HeapTypeConfig::is_bitset(Type* type) {
   return type->IsSmi();
@@ -251,14 +201,14 @@ bool HeapTypeConfig::is_constant(Type* type) {
 
 
 // static
-bool HeapTypeConfig::is_struct(Type* type, int tag) {
-  return type->IsFixedArray() && struct_tag(as_struct(type)) == tag;
+bool HeapTypeConfig::is_struct(Type* type) {
+  return type->IsFixedArray();
 }
 
 
 // static
 int HeapTypeConfig::as_bitset(Type* type) {
-  return i::Smi::cast(type)->value();
+  return Smi::cast(type)->value();
 }
 
 

src/x64/stub-cache-x64.cc

@@ -496,8 +496,7 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = descriptors->GetFieldType(descriptor);
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, field_type->AsClass()->Map(),
-                  miss_label, DO_SMI_CHECK);
+      __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
       __ JumpIfSmi(value_reg, miss_label);
@@ -647,8 +646,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = lookup->GetFieldType();
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, field_type->AsClass()->Map(),
-                  miss_label, DO_SMI_CHECK);
+      __ CheckMap(value_reg, field_type->AsClass(), miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
       __ JumpIfSmi(value_reg, miss_label);
@@ -755,9 +753,7 @@ Register StubCompiler::CheckPrototypes(Handle<HeapType> type,
   int depth = 0;
 
   Handle<JSObject> current = Handle<JSObject>::null();
-  if (type->IsConstant()) {
-    current = Handle<JSObject>::cast(type->AsConstant()->Value());
-  }
+  if (type->IsConstant()) current = Handle<JSObject>::cast(type->AsConstant());
   Handle<JSObject> prototype = Handle<JSObject>::null();
   Handle<Map> current_map = receiver_map;
   Handle<Map> holder_map(holder->map());