[interpreter] Separate bytecodes for one-shot property loads and stores

Create LdaNamedPropertyNoFeedback and StaNamedPropertyNoFeedback
for one-shot property loads and stores. This CL replaces the runtime
calls with new bytecodes for named property load stores in one-shot code.
the runtime calls needed extra set of consecutive registers and
additional move instructions. This increased the size of
bytecode-array and possibly extended the life time of objects.
By replacing them with NoFeedback bytecodes we avoid these issues.

Bug: v8:8072
Change-Id: I20a38a5ce9940026171d870d354787fe0b7c5a6f
Reviewed-on: https://chromium-review.googlesource.com/1196725Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Chandan Reddy <chandanreddy@google.com>
Cr-Commit-Position: refs/heads/master@{#56211}

src/compiler/bytecode-graph-builder.cc

@@ -1339,6 +1339,17 @@ void BytecodeGraphBuilder::VisitLdaNamedProperty() {
   environment()->BindAccumulator(node, Environment::kAttachFrameState);
 }
 
+void BytecodeGraphBuilder::VisitLdaNamedPropertyNoFeedback() {
+  PrepareEagerCheckpoint();
+  Node* object =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Handle<Name> name(
+      Name::cast(bytecode_iterator().GetConstantForIndexOperand(1)), isolate());
+  const Operator* op = javascript()->LoadNamed(name, VectorSlotPair());
+  Node* node = NewNode(op, object);
+  environment()->BindAccumulator(node, Environment::kAttachFrameState);
+}
+
 void BytecodeGraphBuilder::VisitLdaKeyedProperty() {
   PrepareEagerCheckpoint();
   Node* key = environment()->LookupAccumulator();
@@ -1402,6 +1413,21 @@ void BytecodeGraphBuilder::VisitStaNamedProperty() {
   BuildNamedStore(StoreMode::kNormal);
 }
 
+void BytecodeGraphBuilder::VisitStaNamedPropertyNoFeedback() {
+  PrepareEagerCheckpoint();
+  Node* value = environment()->LookupAccumulator();
+  Node* object =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Handle<Name> name(
+      Name::cast(bytecode_iterator().GetConstantForIndexOperand(1)), isolate());
+  LanguageMode language_mode =
+      static_cast<LanguageMode>(bytecode_iterator().GetFlagOperand(2));
+  const Operator* op =
+      javascript()->StoreNamed(language_mode, name, VectorSlotPair());
+  Node* node = NewNode(op, object, value);
+  environment()->RecordAfterState(node, Environment::kAttachFrameState);
+}
+
 void BytecodeGraphBuilder::VisitStaNamedOwnProperty() {
   BuildNamedStore(StoreMode::kOwn);
 }

src/compiler/js-generic-lowering.cc

@@ -169,6 +169,12 @@ void JSGenericLowering::LowerJSLoadNamed(Node* node) {
   Node* frame_state = NodeProperties::GetFrameStateInput(node);
   Node* outer_state = frame_state->InputAt(kFrameStateOuterStateInput);
   node->InsertInput(zone(), 1, jsgraph()->HeapConstant(p.name()));
+  if (!p.feedback().IsValid()) {
+    Callable callable =
+        Builtins::CallableFor(isolate(), Builtins::kGetProperty);
+    ReplaceWithStubCall(node, callable, flags);
+    return;
+  }
   node->InsertInput(zone(), 2, jsgraph()->SmiConstant(p.feedback().index()));
   if (outer_state->opcode() != IrOpcode::kFrameState) {
     Callable callable = Builtins::CallableFor(
@@ -231,6 +237,12 @@ void JSGenericLowering::LowerJSStoreNamed(Node* node) {
   Node* frame_state = NodeProperties::GetFrameStateInput(node);
   Node* outer_state = frame_state->InputAt(kFrameStateOuterStateInput);
   node->InsertInput(zone(), 1, jsgraph()->HeapConstant(p.name()));
+  if (!p.feedback().IsValid()) {
+    node->InsertInput(
+        zone(), 3, jsgraph()->SmiConstant(static_cast<int>(p.language_mode())));
+    ReplaceWithRuntimeCall(node, Runtime::kSetNamedProperty);
+    return;
+  }
   node->InsertInput(zone(), 3, jsgraph()->SmiConstant(p.feedback().index()));
   if (outer_state->opcode() != IrOpcode::kFrameState) {
     Callable callable =

src/compiler/js-type-hint-lowering.cc

@@ -492,23 +492,17 @@ JSTypeHintLowering::ReduceStoreKeyedOperation(const Operator* op, Node* obj,
   return LoweringResult::NoChange();
 }
 
-JSTypeHintLowering::LoweringResult JSTypeHintLowering::BuildSoftDeopt(
-    Node* effect, Node* control, DeoptimizeReason reason) const {
-  Node* deoptimize = jsgraph()->graph()->NewNode(
-      jsgraph()->common()->Deoptimize(DeoptimizeKind::kSoft, reason,
-                                      VectorSlotPair()),
-      jsgraph()->Dead(), effect, control);
-  Node* frame_state = NodeProperties::FindFrameStateBefore(deoptimize);
-  deoptimize->ReplaceInput(0, frame_state);
-  return LoweringResult::Exit(deoptimize);
-}
-
 Node* JSTypeHintLowering::TryBuildSoftDeopt(FeedbackNexus& nexus, Node* effect,
                                             Node* control,
                                             DeoptimizeReason reason) const {
   if ((flags() & kBailoutOnUninitialized) && nexus.IsUninitialized()) {
-    LoweringResult deoptimize = BuildSoftDeopt(effect, control, reason);
-    return deoptimize.control();
+    Node* deoptimize = jsgraph()->graph()->NewNode(
+        jsgraph()->common()->Deoptimize(DeoptimizeKind::kSoft, reason,
+                                        VectorSlotPair()),
+        jsgraph()->Dead(), effect, control);
+    Node* frame_state = NodeProperties::FindFrameStateBefore(deoptimize);
+    deoptimize->ReplaceInput(0, frame_state);
+    return deoptimize;
   }
   return nullptr;
 }

src/compiler/js-type-hint-lowering.h

@@ -151,9 +151,6 @@ class JSTypeHintLowering {
                                            Node* control,
                                            FeedbackSlot slot) const;
 
-  LoweringResult BuildSoftDeopt(Node* effect, Node* control,
-                                DeoptimizeReason reson) const;
-
  private:
   friend class JSSpeculativeBinopBuilder;
   Node* TryBuildSoftDeopt(FeedbackNexus& nexus, Node* effect, Node* control,

src/compiler/verifier.cc

@@ -730,7 +730,6 @@ void Verifier::Visitor::Check(Node* node, const AllNodes& all) {
     case IrOpcode::kJSLoadNamed:
       // Type can be anything.
       CheckTypeIs(node, Type::Any());
-      CHECK(NamedAccessOf(node->op()).feedback().IsValid());
       break;
     case IrOpcode::kJSLoadGlobal:
       // Type can be anything.
@@ -745,7 +744,6 @@ void Verifier::Visitor::Check(Node* node, const AllNodes& all) {
     case IrOpcode::kJSStoreNamed:
       // Type is empty.
       CheckNotTyped(node);
-      CHECK(NamedAccessOf(node->op()).feedback().IsValid());
       break;
     case IrOpcode::kJSStoreGlobal:
       // Type is empty.

src/debug/debug-evaluate.cc

@@ -418,6 +418,7 @@ bool BytecodeHasNoSideEffect(interpreter::Bytecode bytecode) {
     case Bytecode::kLdaLookupSlot:
     case Bytecode::kLdaGlobal:
     case Bytecode::kLdaNamedProperty:
+    case Bytecode::kLdaNamedPropertyNoFeedback:
     case Bytecode::kLdaKeyedProperty:
     case Bytecode::kLdaGlobalInsideTypeof:
     case Bytecode::kLdaLookupSlotInsideTypeof:
@@ -842,6 +843,7 @@ bool BytecodeRequiresRuntimeCheck(interpreter::Bytecode bytecode) {
   typedef interpreter::Bytecode Bytecode;
   switch (bytecode) {
     case Bytecode::kStaNamedProperty:
+    case Bytecode::kStaNamedPropertyNoFeedback:
     case Bytecode::kStaNamedOwnProperty:
     case Bytecode::kStaKeyedProperty:
     case Bytecode::kStaInArrayLiteral:

src/interpreter/bytecode-array-builder.cc

@@ -797,6 +797,13 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::LoadNamedProperty(
   return *this;
 }
 
+BytecodeArrayBuilder& BytecodeArrayBuilder::LoadNamedPropertyNoFeedback(
+    Register object, const AstRawString* name) {
+  size_t name_index = GetConstantPoolEntry(name);
+  OutputLdaNamedPropertyNoFeedback(object, name_index);
+  return *this;
+}
+
 BytecodeArrayBuilder& BytecodeArrayBuilder::LoadKeyedProperty(
     Register object, int feedback_slot) {
   OutputLdaKeyedProperty(object, feedback_slot);
@@ -847,6 +854,14 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::StoreNamedProperty(
   return StoreNamedProperty(object, name_index, feedback_slot, language_mode);
 }
 
+BytecodeArrayBuilder& BytecodeArrayBuilder::StoreNamedPropertyNoFeedback(
+    Register object, const AstRawString* name, LanguageMode language_mode) {
+  size_t name_index = GetConstantPoolEntry(name);
+  OutputStaNamedPropertyNoFeedback(object, name_index,
+                                   static_cast<uint8_t>(language_mode));
+  return *this;
+}
+
 BytecodeArrayBuilder& BytecodeArrayBuilder::StoreNamedOwnProperty(
     Register object, const AstRawString* name, int feedback_slot) {
   size_t name_index = GetConstantPoolEntry(name);

src/interpreter/bytecode-array-builder.h

@@ -120,6 +120,10 @@ class V8_EXPORT_PRIVATE BytecodeArrayBuilder final {
   BytecodeArrayBuilder& LoadNamedProperty(Register object,
                                           const AstRawString* name,
                                           int feedback_slot);
+  // Named load property without feedback
+  BytecodeArrayBuilder& LoadNamedPropertyNoFeedback(Register object,
+                                                    const AstRawString* name);
+
   // Keyed load property. The key should be in the accumulator.
   BytecodeArrayBuilder& LoadKeyedProperty(Register object, int feedback_slot);
   // Named load property of the @@iterator symbol.
@@ -145,6 +149,12 @@ class V8_EXPORT_PRIVATE BytecodeArrayBuilder final {
                                            const AstRawString* name,
                                            int feedback_slot,
                                            LanguageMode language_mode);
+
+  // Store a property named by a property name without feedback slot. The value
+  // to be stored should be in the accumulator.
+  BytecodeArrayBuilder& StoreNamedPropertyNoFeedback(
+      Register object, const AstRawString* name, LanguageMode language_mode);
+
   // Store a property named by a constant from the constant pool. The value to
   // be stored should be in the accumulator.
   BytecodeArrayBuilder& StoreNamedProperty(Register object,

src/interpreter/bytecode-generator.cc

@@ -2868,13 +2868,7 @@ void BytecodeGenerator::BuildLoadNamedProperty(Property* property,
                                                Register object,
                                                const AstRawString* name) {
   if (ShouldOptimizeAsOneShot()) {
-    RegisterList args = register_allocator()->NewRegisterList(2);
-    size_t name_index = builder()->GetConstantPoolEntry(name);
-    builder()
-        ->MoveRegister(object, args[0])
-        .LoadConstantPoolEntry(name_index)
-        .StoreAccumulatorInRegister(args[1])
-        .CallRuntime(Runtime::kInlineGetProperty, args);
+    builder()->LoadNamedPropertyNoFeedback(object, name);
   } else {
     FeedbackSlot slot = GetCachedLoadICSlot(property->obj(), name);
     builder()->LoadNamedProperty(object, name, feedback_index(slot));
@@ -2891,16 +2885,7 @@ void BytecodeGenerator::BuildStoreNamedProperty(Property* property,
   }
 
   if (ShouldOptimizeAsOneShot()) {
-    RegisterList args = register_allocator()->NewRegisterList(4);
-    size_t name_index = builder()->GetConstantPoolEntry(name);
-    builder()
-        ->MoveRegister(object, args[0])
-        .StoreAccumulatorInRegister(args[2])
-        .LoadConstantPoolEntry(name_index)
-        .StoreAccumulatorInRegister(args[1])
-        .LoadLiteral(Smi::FromEnum(language_mode()))
-        .StoreAccumulatorInRegister(args[3])
-        .CallRuntime(Runtime::kSetNamedProperty, args);
+    builder()->StoreNamedPropertyNoFeedback(object, name, language_mode());
   } else {
     FeedbackSlot slot = GetCachedStoreICSlot(property->obj(), name);
     builder()->StoreNamedProperty(object, name, feedback_index(slot),

src/interpreter/bytecodes.h

@@ -98,6 +98,8 @@ namespace interpreter {
   /* Property loads (LoadIC) operations */                                     \
   V(LdaNamedProperty, AccumulatorUse::kWrite, OperandType::kReg,               \
     OperandType::kIdx, OperandType::kIdx)                                      \
+  V(LdaNamedPropertyNoFeedback, AccumulatorUse::kWrite, OperandType::kReg,     \
+    OperandType::kIdx)                                                         \
   V(LdaKeyedProperty, AccumulatorUse::kReadWrite, OperandType::kReg,           \
     OperandType::kIdx)                                                         \
                                                                                \
@@ -110,6 +112,8 @@ namespace interpreter {
   /* Propery stores (StoreIC) operations */                                    \
   V(StaNamedProperty, AccumulatorUse::kReadWrite, OperandType::kReg,           \
     OperandType::kIdx, OperandType::kIdx)                                      \
+  V(StaNamedPropertyNoFeedback, AccumulatorUse::kReadWrite, OperandType::kReg, \
+    OperandType::kIdx, OperandType::kFlag8)                                    \
   V(StaNamedOwnProperty, AccumulatorUse::kReadWrite, OperandType::kReg,        \
     OperandType::kIdx, OperandType::kIdx)                                      \
   V(StaKeyedProperty, AccumulatorUse::kReadWrite, OperandType::kReg,           \

src/interpreter/interpreter-generator.cc

@@ -518,6 +518,18 @@ IGNITION_HANDLER(LdaNamedProperty, InterpreterAssembler) {
   }
 }
 
+// LdaPropertyNofeedback <object> <slot>
+//
+// Calls the GetProperty builtin for <object> and the key in the accumulator.
+IGNITION_HANDLER(LdaNamedPropertyNoFeedback, InterpreterAssembler) {
+  Node* object = LoadRegisterAtOperandIndex(0);
+  Node* name = LoadConstantPoolEntryAtOperandIndex(1);
+  Node* context = GetContext();
+  Node* result = CallBuiltin(Builtins::kGetProperty, context, object, name);
+  SetAccumulator(result);
+  Dispatch();
+}
+
 // KeyedLoadIC <object> <slot>
 //
 // Calls the KeyedLoadIC at FeedBackVector slot <slot> for <object> and the key
@@ -583,6 +595,24 @@ IGNITION_HANDLER(StaNamedOwnProperty, InterpreterStoreNamedPropertyAssembler) {
   StaNamedProperty(ic);
 }
 
+// StaNamedPropertyNoFeedback <object> <name_index>
+//
+// Calls the SetPropertyBuiltin for <object> and the name in constant pool entry
+// <name_index> with the value in the accumulator.
+IGNITION_HANDLER(StaNamedPropertyNoFeedback,
+                 InterpreterStoreNamedPropertyAssembler) {
+  Node* object = LoadRegisterAtOperandIndex(0);
+  Node* name = LoadConstantPoolEntryAtOperandIndex(1);
+  Node* value = GetAccumulator();
+  Node* language_mode = SmiFromInt32(BytecodeOperandFlag(2));
+  Node* context = GetContext();
+
+  Node* result = CallRuntime(Runtime::kSetNamedProperty, context, object, name,
+                             value, language_mode);
+  SetAccumulator(result);
+  Dispatch();
+}
+
 // StaKeyedProperty <object> <key> <slot>
 //
 // Calls the KeyedStoreIC at FeedbackVector slot <slot> for <object> and

src/interpreter/interpreter-intrinsics-generator.cc

@@ -206,12 +206,6 @@ Node* IntrinsicsGenerator::HasProperty(
       args, context, Builtins::CallableFor(isolate(), Builtins::kHasProperty));
 }
 
-Node* IntrinsicsGenerator::GetProperty(
-    const InterpreterAssembler::RegListNodePair& args, Node* context) {
-  return IntrinsicAsStubCall(
-      args, context, Builtins::CallableFor(isolate(), Builtins::kGetProperty));
-}
-
 Node* IntrinsicsGenerator::RejectPromise(
     const InterpreterAssembler::RegListNodePair& args, Node* context) {
   return IntrinsicAsStubCall(

src/interpreter/interpreter-intrinsics.h

@@ -25,7 +25,6 @@ namespace interpreter {
   V(CreateIterResultObject, create_iter_result_object, 2)             \
   V(CreateAsyncFromSyncIterator, create_async_from_sync_iterator, 1)  \
   V(HasProperty, has_property, 2)                                     \
-  V(GetProperty, get_property, 2)                                     \
   V(IsArray, is_array, 1)                                             \
   V(IsJSReceiver, is_js_receiver, 1)                                  \
   V(IsSmi, is_smi, 1)                                                 \

test/cctest/interpreter/bytecode_expectations/PropertyLoadStoreOneShot.golden

@@ -20,9 +20,9 @@ snippet: "
         l['a'] = l['b'];
        
 "
-frame size: 7
+frame size: 4
 parameter count: 1
-bytecode array length: 128
+bytecode array length: 77
 bytecodes: [
   /*    0 E> */ B(StackCheck),
   /*    7 S> */ B(LdaConstant), U8(0),
@@ -33,46 +33,25 @@ bytecodes: [
   /*    9 E> */ B(StaGlobal), U8(1), U8(0),
   /*   60 S> */ B(LdaGlobal), U8(1), U8(3),
                 B(Star), R(1),
-                B(LdaConstant), U8(2),
-                B(Star), R(3),
-                B(Mov), R(1), R(2),
-  /*   65 E> */ B(InvokeIntrinsic), U8(Runtime::k_GetProperty), R(2), U8(2),
+  /*   65 E> */ B(LdaNamedPropertyNoFeedback), R(1), U8(2),
                 B(Star), R(1),
   /*   73 E> */ B(LdaGlobal), U8(1), U8(3),
                 B(Star), R(2),
-                B(LdaConstant), U8(3),
-                B(Star), R(4),
-                B(Mov), R(2), R(3),
-  /*   74 E> */ B(InvokeIntrinsic), U8(Runtime::k_GetProperty), R(3), U8(2),
+  /*   74 E> */ B(LdaNamedPropertyNoFeedback), R(2), U8(3),
   /*   71 E> */ B(Add), R(1), U8(2),
   /*   62 E> */ B(StaGlobal), U8(4), U8(5),
   /*   87 S> */ B(LdaGlobal), U8(1), U8(3),
                 B(Star), R(1),
                 B(LdaSmi), I8(7),
-                B(Star), R(4),
-                B(LdaConstant), U8(3),
-                B(Star), R(3),
-                B(LdaZero),
-                B(Star), R(5),
-                B(Mov), R(1), R(2),
-  /*   94 E> */ B(CallRuntime), U16(Runtime::kSetNamedProperty), R(2), U8(4),
+  /*   94 E> */ B(StaNamedPropertyNoFeedback), R(1), U8(3), U8(0),
   /*  105 S> */ B(LdaGlobal), U8(1), U8(3),
                 B(Star), R(1),
   /*  114 E> */ B(LdaGlobal), U8(1), U8(3),
                 B(Star), R(2),
-                B(LdaConstant), U8(3),
-                B(Star), R(4),
-                B(Mov), R(2), R(3),
-  /*  115 E> */ B(InvokeIntrinsic), U8(Runtime::k_GetProperty), R(3), U8(2),
+  /*  115 E> */ B(LdaNamedPropertyNoFeedback), R(2), U8(3),
                 B(Star), R(2),
-                B(LdaConstant), U8(2),
-                B(Star), R(4),
-                B(LdaZero),
-                B(Star), R(6),
-                B(Mov), R(1), R(3),
-                B(Mov), R(2), R(5),
-  /*  112 E> */ B(CallRuntime), U16(Runtime::kSetNamedProperty), R(3), U8(4),
-                B(Mov), R(5), R(0),
+  /*  112 E> */ B(StaNamedPropertyNoFeedback), R(1), U8(2), U8(0),
+                B(Mov), R(2), R(0),
                 B(Ldar), R(0),
   /*  128 S> */ B(Return),
 ]
@@ -307,9 +286,9 @@ snippet: "
         }
        
 "
-frame size: 7
+frame size: 4
 parameter count: 1
-bytecode array length: 111
+bytecode array length: 75
 bytecodes: [
   /*    0 E> */ B(StackCheck),
   /*    7 S> */ B(LdaConstant), U8(0),
@@ -320,40 +299,25 @@ bytecodes: [
   /*    9 E> */ B(StaGlobal), U8(1), U8(0),
   /*   63 S> */ B(LdaGlobal), U8(1), U8(2),
                 B(Star), R(1),
-                B(LdaConstant), U8(2),
-                B(Star), R(3),
-                B(Mov), R(1), R(2),
-  /*   68 E> */ B(InvokeIntrinsic), U8(Runtime::k_GetProperty), R(2), U8(2),
+  /*   68 E> */ B(LdaNamedPropertyNoFeedback), R(1), U8(2),
                 B(Star), R(1),
                 B(LdaSmi), I8(3),
   /*   74 E> */ B(TestLessThan), R(1), U8(4),
-                B(JumpIfFalse), U8(36),
+                B(JumpIfFalse), U8(22),
   /*   89 S> */ B(LdaGlobal), U8(1), U8(2),
                 B(Star), R(1),
                 B(LdaSmi), I8(3),
                 B(Star), R(2),
-                B(LdaConstant), U8(2),
-                B(Star), R(4),
-                B(LdaZero),
-                B(Star), R(6),
-                B(Mov), R(1), R(3),
-                B(Mov), R(2), R(5),
-  /*   96 E> */ B(CallRuntime), U16(Runtime::kSetNamedProperty), R(3), U8(4),
-                B(Mov), R(5), R(0),
+  /*   96 E> */ B(StaNamedPropertyNoFeedback), R(1), U8(2), U8(0),
+                B(Mov), R(2), R(0),
                 B(Ldar), R(2),
-                B(Jump), U8(34),
+                B(Jump), U8(20),
   /*  124 S> */ B(LdaGlobal), U8(1), U8(2),
                 B(Star), R(1),
                 B(LdaSmi), I8(3),
                 B(Star), R(2),
-                B(LdaConstant), U8(3),
-                B(Star), R(4),
-                B(LdaZero),
-                B(Star), R(6),
-                B(Mov), R(1), R(3),
-                B(Mov), R(2), R(5),
-  /*  131 E> */ B(CallRuntime), U16(Runtime::kSetNamedProperty), R(3), U8(4),
-                B(Mov), R(5), R(0),
+  /*  131 E> */ B(StaNamedPropertyNoFeedback), R(1), U8(3), U8(0),
+                B(Mov), R(2), R(0),
                 B(Ldar), R(2),
                 B(Ldar), R(0),
   /*  150 S> */ B(Return),

test/debugger/debug/side-effect/debug-evaluate-no-side-effect-builtins-2.js

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --no-enable-one-shot-optimization
-
 Debug = debug.Debug
 
 var exception = null;

test/debugger/debug/side-effect/debug-evaluate-no-side-effect-builtins.js

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --no-enable-one-shot-optimization
-
 Debug = debug.Debug
 
 var exception = null;

test/debugger/debug/side-effect/debug-evaluate-no-side-effect-runtime-check.js

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --no-enable-one-shot-optimization
-
 Debug = debug.Debug;
 
 // StaCurrentContextSlot

test/debugger/debug/side-effect/debug-evaluate-no-side-effect.js

@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --no-enable-one-shot-optimization
 Debug = debug.Debug
 
 var exception = null;

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

@@ -134,9 +134,12 @@ TEST_F(BytecodeArrayBuilderTest, AllBytecodesGenerated) {
 
   // Emit load / store property operations.
   builder.LoadNamedProperty(reg, name, load_slot.ToInt())
+      .LoadNamedPropertyNoFeedback(reg, name)
       .LoadKeyedProperty(reg, keyed_load_slot.ToInt())
       .StoreNamedProperty(reg, name, sloppy_store_slot.ToInt(),
                           LanguageMode::kSloppy)
+      .StoreNamedPropertyNoFeedback(reg, name, LanguageMode::kStrict)
+      .StoreNamedPropertyNoFeedback(reg, name, LanguageMode::kSloppy)
       .StoreKeyedProperty(reg, reg, sloppy_keyed_store_slot.ToInt(),
                           LanguageMode::kSloppy)
       .StoreNamedProperty(reg, name, strict_store_slot.ToInt(),