[refactor] Separate generated builtins and C++ builtins into separate files

src/builtins/builtins-function.cc

 // Copyright 2016 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.
 
 #include "src/builtins/builtins-utils.h"
 #include "src/builtins/builtins.h"
 #include "src/code-factory.h"
-#include "src/code-stub-assembler.h"
 #include "src/compiler.h"
 #include "src/conversions.h"
 #include "src/counters.h"
 #include "src/lookup.h"
 #include "src/objects-inl.h"
 #include "src/string-builder.h"
 
 namespace v8 {
 namespace internal {
 
@@ skipping 246 matching lines @@
                                     &it, name, it.property_attributes()));
   }
   return *function;
 }
 
 }  // namespace
 
 // ES6 section 19.2.3.2 Function.prototype.bind ( thisArg, ...args )
 BUILTIN(FunctionPrototypeBind) { return DoFunctionBind(isolate, args); }
 
-TF_BUILTIN(FastFunctionPrototypeBind, CodeStubAssembler) {
-  Label slow(this);
-
-  Node* argc = Parameter(BuiltinDescriptor::kArgumentsCount);
-  Node* context = Parameter(BuiltinDescriptor::kContext);
-  Node* new_target = Parameter(BuiltinDescriptor::kNewTarget);
-
-  CodeStubArguments args(this, ChangeInt32ToIntPtr(argc));
-
-  // Check that receiver has instance type of JS_FUNCTION_TYPE
-  Node* receiver = args.GetReceiver();
-  GotoIf(TaggedIsSmi(receiver), &slow);
-
-  Node* receiver_map = LoadMap(receiver);
-  Node* instance_type = LoadMapInstanceType(receiver_map);
-  GotoIf(Word32NotEqual(instance_type, Int32Constant(JS_FUNCTION_TYPE)), &slow);
-
-  // Disallow binding of slow-mode functions. We need to figure out whether the
-  // length and name property are in the original state.
-  Comment("Disallow binding of slow-mode functions");
-  GotoIf(IsDictionaryMap(receiver_map), &slow);
-
-  // Check whether the length and name properties are still present as
-  // AccessorInfo objects. In that case, their value can be recomputed even if
-  // the actual value on the object changes.
-  Comment("Check descriptor array length");
-  Node* descriptors = LoadMapDescriptors(receiver_map);
-  Node* descriptors_length = LoadFixedArrayBaseLength(descriptors);
-  GotoIf(SmiLessThanOrEqual(descriptors_length, SmiConstant(1)), &slow);
-
-  // Check whether the length and name properties are still present as
-  // AccessorInfo objects. In that case, their value can be recomputed even if
-  // the actual value on the object changes.
-  Comment("Check name and length properties");
-  const int length_index = JSFunction::kLengthDescriptorIndex;
-  Node* maybe_length = LoadFixedArrayElement(
-      descriptors, DescriptorArray::ToKeyIndex(length_index));
-  GotoIf(WordNotEqual(maybe_length, LoadRoot(Heap::klength_stringRootIndex)),
-         &slow);
-
-  Node* maybe_length_accessor = LoadFixedArrayElement(
-      descriptors, DescriptorArray::ToValueIndex(length_index));
-  GotoIf(TaggedIsSmi(maybe_length_accessor), &slow);
-  Node* length_value_map = LoadMap(maybe_length_accessor);
-  GotoIfNot(IsAccessorInfoMap(length_value_map), &slow);
-
-  const int name_index = JSFunction::kNameDescriptorIndex;
-  Node* maybe_name = LoadFixedArrayElement(
-      descriptors, DescriptorArray::ToKeyIndex(name_index));
-  GotoIf(WordNotEqual(maybe_name, LoadRoot(Heap::kname_stringRootIndex)),
-         &slow);
-
-  Node* maybe_name_accessor = LoadFixedArrayElement(
-      descriptors, DescriptorArray::ToValueIndex(name_index));
-  GotoIf(TaggedIsSmi(maybe_name_accessor), &slow);
-  Node* name_value_map = LoadMap(maybe_name_accessor);
-  GotoIfNot(IsAccessorInfoMap(name_value_map), &slow);
-
-  // Choose the right bound function map based on whether the target is
-  // constructable.
-  Comment("Choose the right bound function map");
-  Variable bound_function_map(this, MachineRepresentation::kTagged);
-  Label with_constructor(this);
-  VariableList vars({&bound_function_map}, zone());
-  Node* native_context = LoadNativeContext(context);
-
-  Label map_done(this, vars);
-  Node* bit_field = LoadMapBitField(receiver_map);
-  int mask = static_cast<int>(1 << Map::kIsConstructor);
-  GotoIf(IsSetWord32(bit_field, mask), &with_constructor);
-
-  bound_function_map.Bind(LoadContextElement(
-      native_context, Context::BOUND_FUNCTION_WITHOUT_CONSTRUCTOR_MAP_INDEX));
-  Goto(&map_done);
-
-  Bind(&with_constructor);
-  bound_function_map.Bind(LoadContextElement(
-      native_context, Context::BOUND_FUNCTION_WITH_CONSTRUCTOR_MAP_INDEX));
-  Goto(&map_done);
-
-  Bind(&map_done);
-
-  // Verify that __proto__ matches that of a the target bound function.
-  Comment("Verify that __proto__ matches target bound function");
-  Node* prototype = LoadMapPrototype(receiver_map);
-  Node* expected_prototype = LoadMapPrototype(bound_function_map.value());
-  GotoIf(WordNotEqual(prototype, expected_prototype), &slow);
-
-  // Allocate the arguments array.
-  Comment("Allocate the arguments array");
-  Variable argument_array(this, MachineRepresentation::kTagged);
-  Label empty_arguments(this);
-  Label arguments_done(this, &argument_array);
-  GotoIf(Uint32LessThanOrEqual(argc, Int32Constant(1)), &empty_arguments);
-  Node* elements_length = ChangeUint32ToWord(Int32Sub(argc, Int32Constant(1)));
-  Node* elements = AllocateFixedArray(FAST_ELEMENTS, elements_length);
-  Variable index(this, MachineType::PointerRepresentation());
-  index.Bind(IntPtrConstant(0));
-  VariableList foreach_vars({&index}, zone());
-  args.ForEach(foreach_vars,
-               [this, elements, &index](Node* arg) {
-                 StoreFixedArrayElement(elements, index.value(), arg);
-                 Increment(index);
-               },
-               IntPtrConstant(1));
-  argument_array.Bind(elements);
-  Goto(&arguments_done);
-
-  Bind(&empty_arguments);
-  argument_array.Bind(EmptyFixedArrayConstant());
-  Goto(&arguments_done);
-
-  Bind(&arguments_done);
-
-  // Determine bound receiver.
-  Comment("Determine bound receiver");
-  Variable bound_receiver(this, MachineRepresentation::kTagged);
-  Label has_receiver(this);
-  Label receiver_done(this, &bound_receiver);
-  GotoIf(Word32NotEqual(argc, Int32Constant(0)), &has_receiver);
-  bound_receiver.Bind(UndefinedConstant());
-  Goto(&receiver_done);
-
-  Bind(&has_receiver);
-  bound_receiver.Bind(args.AtIndex(0));
-  Goto(&receiver_done);
-
-  Bind(&receiver_done);
-
-  // Allocate the resulting bound function.
-  Comment("Allocate the resulting bound function");
-  Node* bound_function = Allocate(JSBoundFunction::kSize);
-  StoreMapNoWriteBarrier(bound_function, bound_function_map.value());
-  StoreObjectFieldNoWriteBarrier(
-      bound_function, JSBoundFunction::kBoundTargetFunctionOffset, receiver);
-  StoreObjectFieldNoWriteBarrier(bound_function,
-                                 JSBoundFunction::kBoundThisOffset,
-                                 bound_receiver.value());
-  StoreObjectFieldNoWriteBarrier(bound_function,
-                                 JSBoundFunction::kBoundArgumentsOffset,
-                                 argument_array.value());
-  Node* empty_fixed_array = EmptyFixedArrayConstant();
-  StoreObjectFieldNoWriteBarrier(bound_function, JSObject::kPropertiesOffset,
-                                 empty_fixed_array);
-  StoreObjectFieldNoWriteBarrier(bound_function, JSObject::kElementsOffset,
-                                 empty_fixed_array);
-
-  args.PopAndReturn(bound_function);
-  Bind(&slow);
-
-  Node* target = LoadFromFrame(StandardFrameConstants::kFunctionOffset,
-                               MachineType::TaggedPointer());
-  TailCallStub(CodeFactory::FunctionPrototypeBind(isolate()), context, target,
-               new_target, argc);
-}
-
 // TODO(verwaest): This is a temporary helper until the FastFunctionBind stub
 // can tailcall to the builtin directly.
 RUNTIME_FUNCTION(Runtime_FunctionBind) {
   DCHECK_EQ(2, args.length());
   Arguments* incoming = reinterpret_cast<Arguments*>(args[0]);
   // Rewrap the arguments as builtins arguments.
   int argc = incoming->length() + BuiltinArguments::kNumExtraArgsWithReceiver;
   BuiltinArguments caller_args(argc, incoming->arguments() + 1);
   return DoFunctionBind(isolate, caller_args);
 }
 
 // ES6 section 19.2.3.5 Function.prototype.toString ( )
 BUILTIN(FunctionPrototypeToString) {
   HandleScope scope(isolate);
   Handle<Object> receiver = args.receiver();
   if (receiver->IsJSBoundFunction()) {
     return *JSBoundFunction::ToString(Handle<JSBoundFunction>::cast(receiver));
   } else if (receiver->IsJSFunction()) {
     return *JSFunction::ToString(Handle<JSFunction>::cast(receiver));
   }
   THROW_NEW_ERROR_RETURN_FAILURE(
       isolate, NewTypeError(MessageTemplate::kNotGeneric,
                             isolate->factory()->NewStringFromAsciiChecked(
                                 "Function.prototype.toString")));
 }
 
-// ES6 section 19.2.3.6 Function.prototype [ @@hasInstance ] ( V )
-TF_BUILTIN(FunctionPrototypeHasInstance, CodeStubAssembler) {
-  Node* f = Parameter(0);
-  Node* v = Parameter(1);
-  Node* context = Parameter(4);
-  Node* result = OrdinaryHasInstance(context, f, v);
-  Return(result);
-}
-
 }  // namespace internal
 }  // namespace v8