[runtime] Port simple String.prototype.indexOf cases to TF Builtin

src/ic/ic.cc

 // Copyright 2012 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/ic/ic.h"
 
 #include <iostream>
 
 #include "src/accessors.h"
 #include "src/api-arguments-inl.h"
@@ skipping 2560 matching lines @@
 
 // ----------------------------------------------------------------------------
 // Static IC stub generators.
 //
 
 // Used from ic-<arch>.cc.
 RUNTIME_FUNCTION(Runtime_CallIC_Miss) {
   HandleScope scope(isolate);
   DCHECK_EQ(3, args.length());
   // Runtime functions don't follow the IC's calling convention.
-  Handle<Object> function = args.at<Object>(0);
+  Handle<Object> function = args.at(0);
   Handle<TypeFeedbackVector> vector = args.at<TypeFeedbackVector>(1);
   Handle<Smi> slot = args.at<Smi>(2);
   FeedbackVectorSlot vector_slot = vector->ToSlot(slot->value());
   CallICNexus nexus(vector, vector_slot);
   CallIC ic(isolate, &nexus);
   ic.HandleMiss(function);
   return *function;
 }
 
 
 // Used from ic-<arch>.cc.
 RUNTIME_FUNCTION(Runtime_LoadIC_Miss) {
   HandleScope scope(isolate);
   DCHECK_EQ(4, args.length());
   // Runtime functions don't follow the IC's calling convention.
-  Handle<Object> receiver = args.at<Object>(0);
+  Handle<Object> receiver = args.at(0);
   Handle<Name> key = args.at<Name>(1);
   Handle<Smi> slot = args.at<Smi>(2);
   Handle<TypeFeedbackVector> vector = args.at<TypeFeedbackVector>(3);
   FeedbackVectorSlot vector_slot = vector->ToSlot(slot->value());
   // A monomorphic or polymorphic KeyedLoadIC with a string key can call the
   // LoadIC miss handler if the handler misses. Since the vector Nexus is
   // set up outside the IC, handle that here.
   FeedbackVectorSlotKind kind = vector->GetKind(vector_slot);
   if (kind == FeedbackVectorSlotKind::LOAD_IC) {
     LoadICNexus nexus(vector, vector_slot);
@@ skipping 76 matching lines @@
     }
   }
   return *result;
 }
 
 // Used from ic-<arch>.cc
 RUNTIME_FUNCTION(Runtime_KeyedLoadIC_Miss) {
   HandleScope scope(isolate);
   DCHECK_EQ(4, args.length());
   // Runtime functions don't follow the IC's calling convention.
-  Handle<Object> receiver = args.at<Object>(0);
-  Handle<Object> key = args.at<Object>(1);
+  Handle<Object> receiver = args.at(0);
+  Handle<Object> key = args.at(1);
   Handle<Smi> slot = args.at<Smi>(2);
   Handle<TypeFeedbackVector> vector = args.at<TypeFeedbackVector>(3);
   FeedbackVectorSlot vector_slot = vector->ToSlot(slot->value());
   KeyedLoadICNexus nexus(vector, vector_slot);
   KeyedLoadIC ic(IC::NO_EXTRA_FRAME, isolate, &nexus);
   ic.UpdateState(receiver, key);
   RETURN_RESULT_OR_FAILURE(isolate, ic.Load(receiver, key));
 }
 
 
 RUNTIME_FUNCTION(Runtime_KeyedLoadIC_MissFromStubFailure) {
   HandleScope scope(isolate);
   typedef LoadWithVectorDescriptor Descriptor;
   DCHECK_EQ(Descriptor::kParameterCount, args.length());
-  Handle<Object> receiver = args.at<Object>(Descriptor::kReceiver);
-  Handle<Object> key = args.at<Object>(Descriptor::kName);
+  Handle<Object> receiver = args.at(Descriptor::kReceiver);
+  Handle<Object> key = args.at(Descriptor::kName);
   Handle<Smi> slot = args.at<Smi>(Descriptor::kSlot);
   Handle<TypeFeedbackVector> vector =
       args.at<TypeFeedbackVector>(Descriptor::kVector);
   FeedbackVectorSlot vector_slot = vector->ToSlot(slot->value());
   KeyedLoadICNexus nexus(vector, vector_slot);
   KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate, &nexus);
   ic.UpdateState(receiver, key);
   RETURN_RESULT_OR_FAILURE(isolate, ic.Load(receiver, key));
 }
 
 
 // Used from ic-<arch>.cc.
 RUNTIME_FUNCTION(Runtime_StoreIC_Miss) {
   HandleScope scope(isolate);
   DCHECK_EQ(5, args.length());
   // Runtime functions don't follow the IC's calling convention.
-  Handle<Object> value = args.at<Object>(0);
+  Handle<Object> value = args.at(0);
   Handle<Smi> slot = args.at<Smi>(1);
   Handle<TypeFeedbackVector> vector = args.at<TypeFeedbackVector>(2);
-  Handle<Object> receiver = args.at<Object>(3);
+  Handle<Object> receiver = args.at(3);
   Handle<Name> key = args.at<Name>(4);
   FeedbackVectorSlot vector_slot = vector->ToSlot(slot->value());
   if (vector->GetKind(vector_slot) == FeedbackVectorSlotKind::STORE_IC) {
     StoreICNexus nexus(vector, vector_slot);
     StoreIC ic(IC::NO_EXTRA_FRAME, isolate, &nexus);
     ic.UpdateState(receiver, key);
     RETURN_RESULT_OR_FAILURE(isolate, ic.Store(receiver, key, value));
   } else {
     DCHECK_EQ(FeedbackVectorSlotKind::KEYED_STORE_IC,
               vector->GetKind(vector_slot));
     KeyedStoreICNexus nexus(vector, vector_slot);
     KeyedStoreIC ic(IC::NO_EXTRA_FRAME, isolate, &nexus);
     ic.UpdateState(receiver, key);
     RETURN_RESULT_OR_FAILURE(isolate, ic.Store(receiver, key, value));
   }
 }
 
 
 // Used from ic-<arch>.cc.
 RUNTIME_FUNCTION(Runtime_KeyedStoreIC_Miss) {
   HandleScope scope(isolate);
   DCHECK_EQ(5, args.length());
   // Runtime functions don't follow the IC's calling convention.
-  Handle<Object> value = args.at<Object>(0);
+  Handle<Object> value = args.at(0);
   Handle<Smi> slot = args.at<Smi>(1);
   Handle<TypeFeedbackVector> vector = args.at<TypeFeedbackVector>(2);
-  Handle<Object> receiver = args.at<Object>(3);
-  Handle<Object> key = args.at<Object>(4);
+  Handle<Object> receiver = args.at(3);
+  Handle<Object> key = args.at(4);
   FeedbackVectorSlot vector_slot = vector->ToSlot(slot->value());
   KeyedStoreICNexus nexus(vector, vector_slot);
   KeyedStoreIC ic(IC::NO_EXTRA_FRAME, isolate, &nexus);
   ic.UpdateState(receiver, key);
   RETURN_RESULT_OR_FAILURE(isolate, ic.Store(receiver, key, value));
 }
 
 
 RUNTIME_FUNCTION(Runtime_KeyedStoreIC_Slow) {
   HandleScope scope(isolate);
   DCHECK_EQ(5, args.length());
   // Runtime functions don't follow the IC's calling convention.
-  Handle<Object> value = args.at<Object>(0);
+  Handle<Object> value = args.at(0);
   // slot and vector parameters are not used.
-  Handle<Object> object = args.at<Object>(3);
-  Handle<Object> key = args.at<Object>(4);
+  Handle<Object> object = args.at(3);
+  Handle<Object> key = args.at(4);
   LanguageMode language_mode;
   KeyedStoreICNexus nexus(isolate);
   KeyedStoreIC ic(IC::NO_EXTRA_FRAME, isolate, &nexus);
   language_mode = ic.language_mode();
   RETURN_RESULT_OR_FAILURE(
       isolate,
       Runtime::SetObjectProperty(isolate, object, key, value, language_mode));
 }
 
 
 RUNTIME_FUNCTION(Runtime_ElementsTransitionAndStoreIC_Miss) {
   HandleScope scope(isolate);
   // Runtime functions don't follow the IC's calling convention.
-  Handle<Object> object = args.at<Object>(0);
-  Handle<Object> key = args.at<Object>(1);
-  Handle<Object> value = args.at<Object>(2);
+  Handle<Object> object = args.at(0);
+  Handle<Object> key = args.at(1);
+  Handle<Object> value = args.at(2);
   Handle<Map> map = args.at<Map>(3);
   LanguageMode language_mode;
   KeyedStoreICNexus nexus(isolate);
   KeyedStoreIC ic(IC::NO_EXTRA_FRAME, isolate, &nexus);
   language_mode = ic.language_mode();
   if (object->IsJSObject()) {
     JSObject::TransitionElementsKind(Handle<JSObject>::cast(object),
                                      map->elements_kind());
   }
   RETURN_RESULT_OR_FAILURE(
@@ skipping 116 matching lines @@
   }
 
   return result;
 }
 
 
 RUNTIME_FUNCTION(Runtime_BinaryOpIC_Miss) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   typedef BinaryOpDescriptor Descriptor;
-  Handle<Object> left = args.at<Object>(Descriptor::kLeft);
-  Handle<Object> right = args.at<Object>(Descriptor::kRight);
+  Handle<Object> left = args.at(Descriptor::kLeft);
+  Handle<Object> right = args.at(Descriptor::kRight);
   BinaryOpIC ic(isolate);
   RETURN_RESULT_OR_FAILURE(
       isolate, ic.Transition(Handle<AllocationSite>::null(), left, right));
 }
 
 
 RUNTIME_FUNCTION(Runtime_BinaryOpIC_MissWithAllocationSite) {
   HandleScope scope(isolate);
   DCHECK_EQ(3, args.length());
   typedef BinaryOpWithAllocationSiteDescriptor Descriptor;
   Handle<AllocationSite> allocation_site =
       args.at<AllocationSite>(Descriptor::kAllocationSite);
-  Handle<Object> left = args.at<Object>(Descriptor::kLeft);
-  Handle<Object> right = args.at<Object>(Descriptor::kRight);
+  Handle<Object> left = args.at(Descriptor::kLeft);
+  Handle<Object> right = args.at(Descriptor::kRight);
   BinaryOpIC ic(isolate);
   RETURN_RESULT_OR_FAILURE(isolate,
                            ic.Transition(allocation_site, left, right));
 }
 
 Code* CompareIC::GetRawUninitialized(Isolate* isolate, Token::Value op) {
   CompareICStub stub(isolate, op, CompareICState::UNINITIALIZED,
                      CompareICState::UNINITIALIZED,
                      CompareICState::UNINITIALIZED);
   Code* code = NULL;
@@ skipping 39 matching lines @@
 
   return *new_target;
 }
 
 
 // Used from CompareICStub::GenerateMiss in code-stubs-<arch>.cc.
 RUNTIME_FUNCTION(Runtime_CompareIC_Miss) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 3);
   CompareIC ic(isolate, static_cast<Token::Value>(args.smi_at(2)));
-  return ic.UpdateCaches(args.at<Object>(0), args.at<Object>(1));
+  return ic.UpdateCaches(args.at(0), args.at(1));
 }
 
 
 RUNTIME_FUNCTION(Runtime_Unreachable) {
   UNREACHABLE();
   CHECK(false);
   return isolate->heap()->undefined_value();
 }
 
 
 Handle<Object> ToBooleanIC::ToBoolean(Handle<Object> object) {
   ToBooleanICStub stub(isolate(), extra_ic_state());
   bool to_boolean_value = stub.UpdateStatus(object);
   Handle<Code> code = stub.GetCode();
   set_target(*code);
   return isolate()->factory()->ToBoolean(to_boolean_value);
 }
 
 
 RUNTIME_FUNCTION(Runtime_ToBooleanIC_Miss) {
   DCHECK(args.length() == 1);
   HandleScope scope(isolate);
-  Handle<Object> object = args.at<Object>(0);
+  Handle<Object> object = args.at(0);
   ToBooleanIC ic(isolate);
   return *ic.ToBoolean(object);
 }
 
 
 RUNTIME_FUNCTION(Runtime_StoreCallbackProperty) {
   Handle<JSObject> receiver = args.at<JSObject>(0);
   Handle<JSObject> holder = args.at<JSObject>(1);
   Handle<HeapObject> callback_or_cell = args.at<HeapObject>(2);
   Handle<Name> name = args.at<Name>(3);
-  Handle<Object> value = args.at<Object>(4);
+  Handle<Object> value = args.at(4);
   CONVERT_LANGUAGE_MODE_ARG_CHECKED(language_mode, 5);
   HandleScope scope(isolate);
 
   if (V8_UNLIKELY(FLAG_runtime_stats)) {
     RETURN_RESULT_OR_FAILURE(
         isolate, Runtime::SetObjectProperty(isolate, receiver, name, value,
                                             language_mode));
   }
 
   Handle<AccessorInfo> callback(
@@ skipping 23 matching lines @@
  * but doesn't search the prototype chain.
  *
  * Returns |Heap::no_interceptor_result_sentinel()| if interceptor doesn't
  * provide any value for the given name.
  */
 RUNTIME_FUNCTION(Runtime_LoadPropertyWithInterceptorOnly) {
   DCHECK(args.length() == NamedLoadHandlerCompiler::kInterceptorArgsLength);
   Handle<Name> name =
       args.at<Name>(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex);
   Handle<Object> receiver =
-      args.at<Object>(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex);
+      args.at(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex);
   Handle<JSObject> holder =
       args.at<JSObject>(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex);
   HandleScope scope(isolate);
 
   if (!receiver->IsJSReceiver()) {
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
         isolate, receiver, Object::ConvertReceiver(isolate, receiver));
   }
 
   InterceptorInfo* interceptor = holder->GetNamedInterceptor();
@@ skipping 15 matching lines @@
 /**
  * Loads a property with an interceptor performing post interceptor
  * lookup if interceptor failed.
  */
 RUNTIME_FUNCTION(Runtime_LoadPropertyWithInterceptor) {
   HandleScope scope(isolate);
   DCHECK(args.length() == NamedLoadHandlerCompiler::kInterceptorArgsLength);
   Handle<Name> name =
       args.at<Name>(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex);
   Handle<Object> receiver =
-      args.at<Object>(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex);
+      args.at(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex);
   Handle<JSObject> holder =
       args.at<JSObject>(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex);
 
   if (!receiver->IsJSReceiver()) {
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
         isolate, receiver, Object::ConvertReceiver(isolate, receiver));
   }
 
   InterceptorInfo* interceptor = holder->GetNamedInterceptor();
   PropertyCallbackArguments arguments(isolate, interceptor->data(), *receiver,
@@ skipping 35 matching lines @@
 }
 
 
 RUNTIME_FUNCTION(Runtime_StorePropertyWithInterceptor) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 3);
   StoreICNexus nexus(isolate);
   StoreIC ic(IC::NO_EXTRA_FRAME, isolate, &nexus);
   Handle<JSObject> receiver = args.at<JSObject>(0);
   Handle<Name> name = args.at<Name>(1);
-  Handle<Object> value = args.at<Object>(2);
+  Handle<Object> value = args.at(2);
 
   DCHECK(receiver->HasNamedInterceptor());
   InterceptorInfo* interceptor = receiver->GetNamedInterceptor();
   DCHECK(!interceptor->non_masking());
   PropertyCallbackArguments arguments(isolate, interceptor->data(), *receiver,
                                       *receiver, Object::DONT_THROW);
 
   v8::GenericNamedPropertySetterCallback setter =
       v8::ToCData<v8::GenericNamedPropertySetterCallback>(
           interceptor->setter());
@@ skipping 40 matching lines @@
     DCHECK_EQ(LookupIterator::INTERCEPTOR, it.state());
     it.Next();
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
                                        Object::GetProperty(&it));
   }
 
   return *result;
 }
 }  // namespace internal
 }  // namespace v8