Revert of Collect type profile for DevTools. (patchset #40 id:750001 of...

Revert of Collect type profile for DevTools. (patchset #40 id:750001 of https://codereview.chromium.org/2707873002/ )

Reason for revert:
gcc bot is now flaky https://build.chromium.org/p/client.v8/builders/V8%20Linux%20gcc%204.8/builds/11863

Original issue's description:
> Collect type profile for DevTools
>
> Collect type information for JavaScript variables and display it
> in Chrome DevTools.
> Design Doc: https://docs.google.com/a/google.com/document/d/1O1uepXZXBI6IwiawTrYC3ohhiNgzkyTdjn3R8ysbYgk/edit?usp=sharing
>
> When debugging JavaScript, it’s helpful to know the type of
> a variable, parameter, and return values. JavaScript is
> dynamically typed, and for complex
> source code it’s often hard to infer types. With type profiling, we
> can provide type information to JavaScript developers.
>
> This CL is a proof of concept. It collects type profile for
> assignments and simply prints the types to stdout.
>
> The output looks something like this:
>
> #my_var1
>   #Object
>   #number
>   #string
>   #number
>   #undefined
>   #string
>   #Object
>   #Object
>
>
> We use an extra slot in the feedback vector of assignments to
> carry the list of types for that assignment. The extra slot is
> only added when the flag --type-profile is given.
>
>
> Missing work:
> * Collect data for parameters and return values (currently only assignments).
> * Remove duplicates from the list of collected types and use a common base class.
> * Add line numbers or source position instead of the variable name.
>
>
>
> BUG=v8:5935
>
> Review-Url: https://codereview.chromium.org/2707873002
> Cr-Original-Commit-Position: refs/heads/master@{#43791}
> Committed: https://chromium.googlesource.com/v8/v8/+/0332bebde99d0f9a5a8326382f5f37cc26224ae0
> Review-Url: https://codereview.chromium.org/2707873002
> Cr-Commit-Position: refs/heads/master@{#43804}
> Committed: https://chromium.googlesource.com/v8/v8/+/6cf880f4b84c533d4bb139d33c1369e309d1c579

TBR=yangguo@chromium.org,mvstanton@chromium.org,rmcilroy@chromium.org,mstarzinger@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5935

Review-Url: https://codereview.chromium.org/2754573002
Cr-Commit-Position: refs/heads/master@{#43805}

src/ast/ast-numbering.cc

@@ -15,8 +15,7 @@ namespace internal {
 class AstNumberingVisitor final : public AstVisitor<AstNumberingVisitor> {
  public:
   AstNumberingVisitor(uintptr_t stack_limit, Zone* zone,
-                      Compiler::EagerInnerFunctionLiterals* eager_literals,
-                      bool collect_type_profile = false)
+                      Compiler::EagerInnerFunctionLiterals* eager_literals)
       : zone_(zone),
         eager_literals_(eager_literals),
         next_id_(BailoutId::FirstUsable().ToInt()),
@@ -26,8 +25,7 @@ class AstNumberingVisitor final : public AstVisitor<AstNumberingVisitor> {
         slot_cache_(zone),
         disable_crankshaft_reason_(kNoReason),
         dont_optimize_reason_(kNoReason),
-        catch_prediction_(HandlerTable::UNCAUGHT),
-        collect_type_profile_(collect_type_profile) {
+        catch_prediction_(HandlerTable::UNCAUGHT) {
     InitializeAstVisitor(stack_limit);
   }
 
@@ -103,7 +101,6 @@ class AstNumberingVisitor final : public AstVisitor<AstNumberingVisitor> {
   BailoutReason disable_crankshaft_reason_;
   BailoutReason dont_optimize_reason_;
   HandlerTable::CatchPrediction catch_prediction_;
-  bool collect_type_profile_;
 
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
   DISALLOW_COPY_AND_ASSIGN(AstNumberingVisitor);
@@ -425,8 +422,7 @@ void AstNumberingVisitor::VisitAssignment(Assignment* node) {
   if (node->is_compound()) VisitBinaryOperation(node->binary_operation());
   VisitReference(node->target());
   Visit(node->value());
-  node->AssignFeedbackSlots(properties_.get_spec(), language_mode_,
-                            &slot_cache_, collect_type_profile_);
+  ReserveFeedbackSlots(node);
 }
 
 
@@ -718,14 +714,12 @@ bool AstNumberingVisitor::Renumber(FunctionLiteral* node) {
 
 bool AstNumbering::Renumber(
     uintptr_t stack_limit, Zone* zone, FunctionLiteral* function,
-    Compiler::EagerInnerFunctionLiterals* eager_literals,
-    bool collect_type_profile) {
+    Compiler::EagerInnerFunctionLiterals* eager_literals) {
   DisallowHeapAllocation no_allocation;
   DisallowHandleAllocation no_handles;
   DisallowHandleDereference no_deref;
 
-  AstNumberingVisitor visitor(stack_limit, zone, eager_literals,
-                              collect_type_profile);
+  AstNumberingVisitor visitor(stack_limit, zone, eager_literals);
   return visitor.Renumber(function);
 }
 }  // namespace internal

src/ast/ast-numbering.h

@@ -27,8 +27,7 @@ namespace AstNumbering {
 // non-null, adds any eager inner literal functions into it.
 bool Renumber(
     uintptr_t stack_limit, Zone* zone, FunctionLiteral* function,
-    ThreadedList<ThreadedListZoneEntry<FunctionLiteral*>>* eager_literals,
-    bool collect_type_profile = false);
+    ThreadedList<ThreadedListZoneEntry<FunctionLiteral*>>* eager_literals);
 }
 
 // Some details on yield IDs

src/ast/ast.cc

@@ -283,13 +283,8 @@ Assignment::Assignment(Token::Value op, Expression* target, Expression* value,
 
 void Assignment::AssignFeedbackSlots(FeedbackVectorSpec* spec,
                                      LanguageMode language_mode,
-                                     FeedbackSlotCache* cache,
-                                     bool collect_type_profile) {
+                                     FeedbackSlotCache* cache) {
   AssignVectorSlots(target(), spec, language_mode, &slot_);
-
-  if (collect_type_profile) {
-    type_profile_slot_ = spec->AddTypeProfileSlot();
-  }
 }
 
 void CountOperation::AssignFeedbackSlots(FeedbackVectorSpec* spec,

src/ast/ast.h

@@ -2414,17 +2414,9 @@ class Assignment final : public Expression {
   }
 
   void AssignFeedbackSlots(FeedbackVectorSpec* spec, LanguageMode language_mode,
-                           FeedbackSlotCache* cache,
-                           bool collect_type_profile = false);
+                           FeedbackSlotCache* cache);
   FeedbackSlot AssignmentSlot() const { return slot_; }
 
-  FeedbackSlot TypeProfileSlot() const {
-    DCHECK(HasTypeProfileSlot());
-    return type_profile_slot_;
-  }
-
-  bool HasTypeProfileSlot() const { return !type_profile_slot_.IsInvalid(); }
-
  private:
   friend class AstNodeFactory;
 
@@ -2446,8 +2438,6 @@ class Assignment final : public Expression {
   Expression* value_;
   BinaryOperation* binary_operation_;
   SmallMapList receiver_types_;
-
-  FeedbackSlot type_profile_slot_;
 };
 
 

src/compiler.cc

@@ -478,23 +478,9 @@ bool Renumber(ParseInfo* parse_info,
               Compiler::EagerInnerFunctionLiterals* eager_literals) {
   RuntimeCallTimerScope runtimeTimer(parse_info->isolate(),
                                      &RuntimeCallStats::CompileRenumber);
-
-  // CollectTypeProfile uses its own feedback slots. If we have existing
-  // FeedbackMetadata, we can only collect type profile, if the feedback vector
-  // has the appropriate slots.
-  bool collect_type_profile;
-  if (parse_info->shared_info().is_null() ||
-      parse_info->shared_info()->feedback_metadata()->length() == 0) {
-    collect_type_profile = FLAG_type_profile;
-  } else {
-    collect_type_profile =
-        parse_info->shared_info()->feedback_metadata()->HasTypeProfileSlot();
-  }
-
   if (!AstNumbering::Renumber(
           parse_info->isolate()->stack_guard()->real_climit(),
-          parse_info->zone(), parse_info->literal(), eager_literals,
-          collect_type_profile)) {
+          parse_info->zone(), parse_info->literal(), eager_literals)) {
     return false;
   }
   if (!parse_info->shared_info().is_null()) {

src/compiler/bytecode-graph-builder.cc

@@ -802,22 +802,6 @@ void BytecodeGraphBuilder::VisitStaDataPropertyInLiteral() {
   environment()->RecordAfterState(node, Environment::kAttachFrameState);
 }
 
-void BytecodeGraphBuilder::VisitCollectTypeProfile() {
-  PrepareEagerCheckpoint();
-
-  Node* name =
-      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
-  Node* value = environment()->LookupAccumulator();
-  Node* index = jsgraph()->Constant(bytecode_iterator().GetIndexOperand(1));
-
-  Node* vector = jsgraph()->Constant(feedback_vector());
-
-  const Operator* op = javascript()->CallRuntime(Runtime::kCollectTypeProfile);
-
-  Node* node = NewNode(op, name, value, vector, index);
-  environment()->RecordAfterState(node, Environment::kAttachFrameState);
-}
-
 void BytecodeGraphBuilder::VisitLdaContextSlot() {
   const Operator* op = javascript()->LoadContext(
       bytecode_iterator().GetUnsignedImmediateOperand(2),

src/feedback-vector-inl.h

@@ -54,7 +54,6 @@ int FeedbackMetadata::GetSlotSize(FeedbackSlotKind kind) {
     case FeedbackSlotKind::kToBoolean:
     case FeedbackSlotKind::kLiteral:
     case FeedbackSlotKind::kCreateClosure:
-    case FeedbackSlotKind::kTypeProfile:
       return 1;
 
     case FeedbackSlotKind::kCall:
@@ -187,8 +186,7 @@ void FeedbackVector::ComputeCounts(int* with_type_info, int* generic,
       case FeedbackSlotKind::kStoreOwnNamed:
       case FeedbackSlotKind::kStoreKeyedSloppy:
       case FeedbackSlotKind::kStoreKeyedStrict:
-      case FeedbackSlotKind::kStoreDataPropertyInLiteral:
-      case FeedbackSlotKind::kTypeProfile: {
+      case FeedbackSlotKind::kStoreDataPropertyInLiteral: {
         if (obj->IsWeakCell() || obj->IsFixedArray() || obj->IsString()) {
           with++;
         } else if (obj == megamorphic_sentinel) {

src/feedback-vector.cc

@@ -149,8 +149,6 @@ const char* FeedbackMetadata::Kind2String(FeedbackSlotKind kind) {
       return "kCreateClosure";
     case FeedbackSlotKind::kLiteral:
       return "LITERAL";
-    case FeedbackSlotKind::kTypeProfile:
-      return "TYPE_PROFILE";
     case FeedbackSlotKind::kGeneral:
       return "STUB";
     case FeedbackSlotKind::kKindsNumber:
@@ -160,18 +158,6 @@ const char* FeedbackMetadata::Kind2String(FeedbackSlotKind kind) {
   return "?";
 }
 
-bool FeedbackMetadata::HasTypeProfileSlot() {
-  FeedbackMetadataIterator iter(this);
-  while (iter.HasNext()) {
-    iter.Next();
-    FeedbackSlotKind kind = iter.kind();
-    if (kind == FeedbackSlotKind::kTypeProfile) {
-      return true;
-    }
-  }
-  return false;
-}
-
 FeedbackSlotKind FeedbackVector::GetKind(FeedbackSlot slot) const {
   DCHECK(!is_empty());
   return metadata()->GetKind(slot);
@@ -233,7 +219,6 @@ Handle<FeedbackVector> FeedbackVector::New(Isolate* isolate,
       case FeedbackSlotKind::kStoreKeyedStrict:
       case FeedbackSlotKind::kStoreDataPropertyInLiteral:
       case FeedbackSlotKind::kGeneral:
-      case FeedbackSlotKind::kTypeProfile:
         array->set(index, *uninitialized_sentinel, SKIP_WRITE_BARRIER);
         break;
 
@@ -351,8 +336,7 @@ void FeedbackVector::ClearSlots(JSFunction* host_function) {
           break;
         }
         case FeedbackSlotKind::kCreateClosure: {
-          case FeedbackSlotKind::kTypeProfile:
-            break;
+          break;
         }
         case FeedbackSlotKind::kGeneral: {
           if (obj->IsHeapObject()) {
@@ -1039,49 +1023,5 @@ void StoreDataPropertyInLiteralICNexus::ConfigureMonomorphic(
   SetFeedbackExtra(*name);
 }
 
-InlineCacheState CollectTypeProfileNexus::StateFromFeedback() const {
-  Isolate* isolate = GetIsolate();
-  Object* const feedback = GetFeedback();
-
-  if (feedback == *FeedbackVector::UninitializedSentinel(isolate)) {
-    return UNINITIALIZED;
-  }
-  return MONOMORPHIC;
-}
-
-void CollectTypeProfileNexus::Collect(Handle<Name> type) {
-  Isolate* isolate = GetIsolate();
-
-  Object* const feedback = GetFeedback();
-  Handle<ArrayList> types;
-
-  if (feedback == *FeedbackVector::UninitializedSentinel(isolate)) {
-    types = ArrayList::New(isolate, 1);
-  } else {
-    types = Handle<ArrayList>(ArrayList::cast(feedback), isolate);
-  }
-  // TODO(franzih): Somehow sort this list. Either avoid duplicates
-  // or use the common base type.
-  SetFeedback(*ArrayList::Add(types, type));
-}
-
-void CollectTypeProfileNexus::Print() const {
-  Isolate* isolate = GetIsolate();
-
-  Object* const feedback = GetFeedback();
-
-  if (feedback == *FeedbackVector::UninitializedSentinel(isolate)) {
-    return;
-  }
-
-  Handle<ArrayList> list;
-  list = Handle<ArrayList>(ArrayList::cast(feedback), isolate);
-
-  for (int i = 0; i < list->Length(); i++) {
-    String* name = String::cast(list->Get(i));
-    PrintF("%s\n", name->ToCString().get());
-  }
-}
-
 }  // namespace internal
 }  // namespace v8

src/feedback-vector.h

@@ -36,7 +36,6 @@ enum class FeedbackSlotKind {
   kCompareOp,
   kToBoolean,
   kStoreDataPropertyInLiteral,
-  kTypeProfile,
   kCreateClosure,
   kLiteral,
   // This is a general purpose slot that occupies one feedback vector element.
@@ -151,11 +150,6 @@ class FeedbackVectorSpecBase {
     return AddSlot(FeedbackSlotKind::kStoreDataPropertyInLiteral);
   }
 
-  FeedbackSlot AddTypeProfileSlot() {
-    DCHECK(FLAG_type_profile);
-    return AddSlot(FeedbackSlotKind::kTypeProfile);
-  }
-
 #ifdef OBJECT_PRINT
   // For gdb debugging.
   void Print();
@@ -256,8 +250,6 @@ class FeedbackMetadata : public FixedArray {
 
   static const char* Kind2String(FeedbackSlotKind kind);
 
-  bool HasTypeProfileSlot();
-
  private:
   static const int kFeedbackSlotKindBits = 5;
   STATIC_ASSERT(static_cast<int>(FeedbackSlotKind::kKindsNumber) <
@@ -750,30 +742,6 @@ class StoreDataPropertyInLiteralICNexus : public FeedbackNexus {
   InlineCacheState StateFromFeedback() const override;
 };
 
-// For each assignment, store the type of the value in the collection of types
-// in the feedback vector.
-class CollectTypeProfileNexus : public FeedbackNexus {
- public:
-  CollectTypeProfileNexus(Handle<FeedbackVector> vector, FeedbackSlot slot)
-      : FeedbackNexus(vector, slot) {
-    DCHECK_EQ(FeedbackSlotKind::kTypeProfile, vector->GetKind(slot));
-  }
-  CollectTypeProfileNexus(FeedbackVector* vector, FeedbackSlot slot)
-      : FeedbackNexus(vector, slot) {
-    DCHECK_EQ(FeedbackSlotKind::kTypeProfile, vector->GetKind(slot));
-  }
-
-  // Add a type to the list of types.
-  void Collect(Handle<Name> type);
-
-  // Dump the types to stdout.
-  // TODO(franzih): pass this information to the debugger protocol instead of
-  // stdout.
-  void Print() const;
-
-  InlineCacheState StateFromFeedback() const override;
-};
-
 inline BinaryOperationHint BinaryOperationHintFromFeedback(int type_feedback);
 inline CompareOperationHint CompareOperationHintFromFeedback(int type_feedback);
 

src/ic/ic.cc

@@ -581,7 +581,6 @@ void IC::ConfigureVectorState(Handle<Name> name, Handle<Map> map,
     case FeedbackSlotKind::kLiteral:
     case FeedbackSlotKind::kGeneral:
     case FeedbackSlotKind::kStoreDataPropertyInLiteral:
-    case FeedbackSlotKind::kTypeProfile:
     case FeedbackSlotKind::kInvalid:
     case FeedbackSlotKind::kKindsNumber:
       UNREACHABLE();
@@ -629,7 +628,6 @@ void IC::ConfigureVectorState(Handle<Name> name, MapHandleList* maps,
     case FeedbackSlotKind::kLiteral:
     case FeedbackSlotKind::kGeneral:
     case FeedbackSlotKind::kStoreDataPropertyInLiteral:
-    case FeedbackSlotKind::kTypeProfile:
     case FeedbackSlotKind::kInvalid:
     case FeedbackSlotKind::kKindsNumber:
       UNREACHABLE();

src/interpreter/bytecode-array-builder.cc

@@ -632,13 +632,6 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::StoreDataPropertyInLiteral(
   return *this;
 }
 
-BytecodeArrayBuilder& BytecodeArrayBuilder::CollectTypeProfile(
-    Register name, int feedback_slot) {
-  DCHECK(FLAG_type_profile);
-  OutputCollectTypeProfile(name, feedback_slot);
-  return *this;
-}
-
 BytecodeArrayBuilder& BytecodeArrayBuilder::StoreNamedProperty(
     Register object, size_t name_index, int feedback_slot,
     LanguageMode language_mode) {

src/interpreter/bytecode-array-builder.h

@@ -137,11 +137,6 @@ class V8_EXPORT_PRIVATE BytecodeArrayBuilder final
       Register object, Register name, DataPropertyInLiteralFlags flags,
       int feedback_slot);
 
-  // Collect type information for developer tools. The value for which we
-  // record the type is stored in the accumulator.
-  // TODO(franzih): Do not pass the name, instead use the source position.
-  BytecodeArrayBuilder& CollectTypeProfile(Register name, int feedback_slot);
-
   // Store a property named by a property name. The value to be stored should be
   // in the accumulator.
   BytecodeArrayBuilder& StoreNamedProperty(Register object,

src/interpreter/bytecode-generator.cc

@@ -2214,34 +2214,18 @@ void BytecodeGenerator::VisitAssignment(Assignment* expr) {
   LhsKind assign_type = Property::GetAssignType(property);
 
   // Evaluate LHS expression.
-  Register lhs_name;
-  if (expr->HasTypeProfileSlot()) {
-    lhs_name = register_allocator()->NewRegister();
-  }
-
   switch (assign_type) {
     case VARIABLE:
-      if (expr->HasTypeProfileSlot()) {
-        builder()
-            ->LoadLiteral(expr->target()->AsVariableProxy()->var()->raw_name())
-            .StoreAccumulatorInRegister(lhs_name);
-      }
       // Nothing to do to evaluate variable assignment LHS.
       break;
     case NAMED_PROPERTY: {
       object = VisitForRegisterValue(property->obj());
       name = property->key()->AsLiteral()->AsRawPropertyName();
-      if (expr->HasTypeProfileSlot()) {
-        builder()->LoadLiteral(name).StoreAccumulatorInRegister(lhs_name);
-      }
       break;
     }
     case KEYED_PROPERTY: {
       object = VisitForRegisterValue(property->obj());
       key = VisitForRegisterValue(property->key());
-      if (expr->HasTypeProfileSlot()) {
-        builder()->StoreAccumulatorInRegister(lhs_name);
-      }
       break;
     }
     case NAMED_SUPER_PROPERTY: {
@@ -2254,9 +2238,6 @@ void BytecodeGenerator::VisitAssignment(Assignment* expr) {
       builder()
           ->LoadLiteral(property->key()->AsLiteral()->AsRawPropertyName())
           .StoreAccumulatorInRegister(super_property_args[2]);
-      if (expr->HasTypeProfileSlot()) {
-        builder()->StoreAccumulatorInRegister(lhs_name);
-      }
       break;
     }
     case KEYED_SUPER_PROPERTY: {
@@ -2267,10 +2248,6 @@ void BytecodeGenerator::VisitAssignment(Assignment* expr) {
       VisitForRegisterValue(super_property->home_object(),
                             super_property_args[1]);
       VisitForRegisterValue(property->key(), super_property_args[2]);
-      if (expr->HasTypeProfileSlot()) {
-        builder()->StoreAccumulatorInRegister(lhs_name);
-      }
-
       break;
     }
   }
@@ -2359,14 +2336,6 @@ void BytecodeGenerator::VisitAssignment(Assignment* expr) {
       break;
     }
   }
-
-  // Value is in accumulator.
-  if (expr->HasTypeProfileSlot()) {
-    FeedbackSlot collect_type_feedback_slot = expr->TypeProfileSlot();
-
-    builder()->CollectTypeProfile(lhs_name,
-                                  feedback_index(collect_type_feedback_slot));
-  }
 }
 
 void BytecodeGenerator::VisitYield(Yield* expr) {

src/interpreter/bytecodes.h

@@ -105,8 +105,6 @@ namespace interpreter {
     OperandType::kReg, OperandType::kIdx)                                      \
   V(StaDataPropertyInLiteral, AccumulatorUse::kRead, OperandType::kReg,        \
     OperandType::kReg, OperandType::kFlag8, OperandType::kIdx)                 \
-  V(CollectTypeProfile, AccumulatorUse::kRead, OperandType::kReg,              \
-    OperandType::kIdx)                                                         \
                                                                                \
   /* Binary Operators */                                                       \
   V(Add, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx)     \

src/interpreter/interpreter.cc

@@ -1045,19 +1045,6 @@ void Interpreter::DoStaDataPropertyInLiteral(InterpreterAssembler* assembler) {
   __ Dispatch();
 }
 
-void Interpreter::DoCollectTypeProfile(InterpreterAssembler* assembler) {
-  Node* name = __ LoadRegister(__ BytecodeOperandReg(0));
-  Node* value = __ GetAccumulator();
-  Node* vector_index = __ SmiTag(__ BytecodeOperandIdx(1));
-
-  Node* feedback_vector = __ LoadFeedbackVector();
-  Node* context = __ GetContext();
-
-  __ CallRuntime(Runtime::kCollectTypeProfile, context, name, value,
-                 feedback_vector, vector_index);
-  __ Dispatch();
-}
-
 // LdaModuleVariable <cell_index> <depth>
 //
 // Load the contents of a module variable into the accumulator.  The variable is

src/objects-printer.cc

@@ -751,7 +751,6 @@ void FeedbackVector::FeedbackVectorPrint(std::ostream& os) {  // NOLINT
       case FeedbackSlotKind::kCreateClosure:
       case FeedbackSlotKind::kLiteral:
       case FeedbackSlotKind::kGeneral:
-      case FeedbackSlotKind::kTypeProfile:
         break;
       case FeedbackSlotKind::kToBoolean:
       case FeedbackSlotKind::kInvalid:

src/runtime/runtime-object.cc

@@ -691,32 +691,6 @@ RUNTIME_FUNCTION(Runtime_DefineDataPropertyInLiteral) {
   return *object;
 }
 
-RUNTIME_FUNCTION(Runtime_CollectTypeProfile) {
-  HandleScope scope(isolate);
-  DCHECK_EQ(4, args.length());
-  CONVERT_ARG_HANDLE_CHECKED(String, name, 0);
-  CONVERT_ARG_HANDLE_CHECKED(Object, value, 1);
-  CONVERT_ARG_HANDLE_CHECKED(FeedbackVector, vector, 2);
-  CONVERT_SMI_ARG_CHECKED(index, 3);
-
-  DCHECK(FLAG_type_profile);
-
-  Handle<Name> type = Object::TypeOf(isolate, value);
-  if (value->IsJSReceiver()) {
-    Handle<JSReceiver> object = Handle<JSReceiver>::cast(value);
-    type = JSReceiver::GetConstructorName(object);
-  }
-
-  CollectTypeProfileNexus nexus(vector, vector->ToSlot(index));
-  nexus.Collect(type);
-
-  PrintF("%s\n", name->ToCString().get());
-  nexus.Print();
-  PrintF("\n");
-
-  return *name;
-}
-
 // Return property without being observable by accessors or interceptors.
 RUNTIME_FUNCTION(Runtime_GetDataProperty) {
   HandleScope scope(isolate);

src/runtime/runtime.h

@@ -394,7 +394,6 @@ namespace internal {
   F(IsJSGlobalProxy, 1, 1)                                      \
   F(DefineAccessorPropertyUnchecked, 5, 1)                      \
   F(DefineDataPropertyInLiteral, 6, 1)                          \
-  F(CollectTypeProfile, 4, 1)                                   \
   F(GetDataProperty, 2, 1)                                      \
   F(GetConstructorName, 1, 1)                                   \
   F(HasFastPackedElements, 1, 1)                                \

test/inspector/type-profile/collect-type-profile-expected.txt

-setTimeout
-Function
-
-.result
-Function
-
-attachInspector
-Function
-
-detachInspector
-Function
-
-setMaxAsyncTaskStacks
-Function
-
-breakProgram
-Function
-
-createObjectWithStrictCheck
-Function
-
-callWithScheduledBreak
-Function
-
-allowAccessorFormatting
-Function
-
-.result
-Function
-
-print
-Function
-
-quit
-Function
-
-setlocale
-Function
-
-read
-Function
-
-load
-Function
-
-compileAndRunWithOrigin
-Function
-
-setCurrentTimeMSForTest
-Function
-
-schedulePauseOnNextStatement
-Function
-
-cancelPauseOnNextStatement
-Function
-
-reconnect
-Function
-
-createContextGroup
-Function
-
-.result
-Function
-
-sendMessageToBackend
-Function
-
-.result
-Function
-
-.result
-Function
-
-InspectorTest
-Object
-
-_dispatchTable
-Map
-
-_requestId
-number
-
-_dumpInspectorProtocolMessages
-boolean
-
-_eventHandler
-Object
-
-Protocol
-Object
-
-log
-Function
-
-logMessage
-Function
-
-logObject
-Function
-
-logCallFrames
-Function
-
-logSourceLocation
-Function
-
-logSourceLocations
-Function
-
-logAsyncStackTrace
-Function
-
-completeTest
-Function
-
-completeTestAfterPendingTimeouts
-Function
-
-waitPendingTasks
-Function
-
-addScript
-Function
-
-addScriptWithUrl
-Function
-
-addModule
-Function
-
-startDumpingProtocolMessages
-Function
-
-sendRawCommand
-Function
-
-checkExpectation
-Function
-
-expectedSuccess
-Function
-
-expectedError
-Function
-
-setupScriptMap
-Function
-
-runTestSuite
-Function
-
-runAsyncTestSuite
-AsyncFunction
-
-_sendCommandPromise
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test/inspector/type-profile/collect-type-profile.js

-// 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.
-
-// Flags: --type-profile --turbo
-
-const expression = `
-function test(param) {
-  var my_var1 = param;
-  var my_var2 = 17;
-}
-
-test({});
-test(123);
-test('hello');
-test(123);
-test(undefined);
-test('hello');
-test({x: 12});
-test({x: 12});
-
-class MyClass {
-  constructor() {}
-}
-
-
-function testConstructorNames(param) {
-  var my_var = param;
-}
-
-testConstructorNames(new MyClass());
-testConstructorNames({});
-testConstructorNames(2);
-`;
-
-
-Protocol.Runtime.evaluate({ expression: expression })
-  .then(function() {InspectorTest.completeTest();});

test/unittests/interpreter/bytecode-array-builder-unittest.cc

@@ -446,12 +446,6 @@ TEST_F(BytecodeArrayBuilderTest, AllBytecodesGenerated) {
     scorecard[Bytecodes::ToByte(Bytecode::kTestNull)] = 1;
   }
 
-  if (!FLAG_type_profile) {
-    // Bytecode for CollectTypeProfile is only emitted when
-    // Type Information for DevTools is turned on.
-    scorecard[Bytecodes::ToByte(Bytecode::kCollectTypeProfile)] = 1;
-  }
-
   // Check return occurs at the end and only once in the BytecodeArray.
   CHECK_EQ(final_bytecode, Bytecode::kReturn);
   CHECK_EQ(scorecard[Bytecodes::ToByte(final_bytecode)], 1);