VectorICs: Remove --vector-stores flag.

src/full-codegen/x64/full-codegen-x64.cc

Index: src/full-codegen/x64/full-codegen-x64.cc
diff --git a/src/full-codegen/x64/full-codegen-x64.cc b/src/full-codegen/x64/full-codegen-x64.cc
index 0d626bc2f5ce02b105dd13e05630d9ae86c46d9a..139f4ec07788bc304f2c2d932653909e8249901b 100644
--- a/src/full-codegen/x64/full-codegen-x64.cc
+++ b/src/full-codegen/x64/full-codegen-x64.cc
@@ -1193,7 +1193,7 @@ void FullCodeGenerator::EmitSetHomeObject(Expression* initializer, int offset,
           isolate()->factory()->home_object_symbol());
   __ movp(StoreDescriptor::ValueRegister(),
           Operand(rsp, offset * kPointerSize));
-  if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
+  EmitLoadStoreICSlot(slot);
   CallStoreIC();
 }
 
@@ -1207,7 +1207,7 @@ void FullCodeGenerator::EmitSetHomeObjectAccumulator(Expression* initializer,
           isolate()->factory()->home_object_symbol());
   __ movp(StoreDescriptor::ValueRegister(),
           Operand(rsp, offset * kPointerSize));
-  if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
+  EmitLoadStoreICSlot(slot);
   CallStoreIC();
 }
 
@@ -1535,12 +1535,8 @@ void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
             DCHECK(StoreDescriptor::ValueRegister().is(rax));
             __ Move(StoreDescriptor::NameRegister(), key->value());
             __ movp(StoreDescriptor::ReceiverRegister(), Operand(rsp, 0));
-            if (FLAG_vector_stores) {
-              EmitLoadStoreICSlot(property->GetSlot(0));
-              CallStoreIC();
-            } else {
-              CallStoreIC(key->LiteralFeedbackId());
-            }
+            EmitLoadStoreICSlot(property->GetSlot(0));
+            CallStoreIC();
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
 
             if (NeedsHomeObject(value)) {
@@ -1724,32 +1720,12 @@ void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
     }
     VisitForAccumulatorValue(subexpr);
 
-    if (FLAG_vector_stores) {
-      __ Move(StoreDescriptor::NameRegister(), Smi::FromInt(array_index));
-      __ movp(StoreDescriptor::ReceiverRegister(), Operand(rsp, kPointerSize));
-      EmitLoadStoreICSlot(expr->LiteralFeedbackSlot());
-      Handle<Code> ic =
-          CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
-      CallIC(ic);
-    } else if (has_constant_fast_elements) {
-      // Fast-case array literal with ElementsKind of FAST_*_ELEMENTS, they
-      // cannot transition and don't need to call the runtime stub.
-      int offset = FixedArray::kHeaderSize + (array_index * kPointerSize);
-      __ movp(rbx, Operand(rsp, kPointerSize));  // Copy of array literal.
-      __ movp(rbx, FieldOperand(rbx, JSObject::kElementsOffset));
-      // Store the subexpression value in the array's elements.
-      __ movp(FieldOperand(rbx, offset), result_register());
-      // Update the write barrier for the array store.
-      __ RecordWriteField(rbx, offset, result_register(), rcx,
-                          kDontSaveFPRegs,
-                          EMIT_REMEMBERED_SET,
-                          INLINE_SMI_CHECK);
-    } else {
-      // Store the subexpression value in the array's elements.
-      __ Move(rcx, Smi::FromInt(array_index));
-      StoreArrayLiteralElementStub stub(isolate());
-      __ CallStub(&stub);
-    }
+    __ Move(StoreDescriptor::NameRegister(), Smi::FromInt(array_index));
+    __ movp(StoreDescriptor::ReceiverRegister(), Operand(rsp, kPointerSize));
+    EmitLoadStoreICSlot(expr->LiteralFeedbackSlot());
+    Handle<Code> ic =
+        CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
+    CallIC(ic);
 
     PrepareForBailoutForId(expr->GetIdForElement(array_index), NO_REGISTERS);
   }
@@ -2407,7 +2383,7 @@ void FullCodeGenerator::EmitAssignment(Expression* expr,
       __ Pop(StoreDescriptor::ValueRegister());  // Restore value.
       __ Move(StoreDescriptor::NameRegister(),
               prop->key()->AsLiteral()->value());
-      if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
+      EmitLoadStoreICSlot(slot);
       CallStoreIC();
       break;
     }
@@ -2455,7 +2431,7 @@ void FullCodeGenerator::EmitAssignment(Expression* expr,
       __ Move(StoreDescriptor::NameRegister(), rax);
       __ Pop(StoreDescriptor::ReceiverRegister());
       __ Pop(StoreDescriptor::ValueRegister());  // Restore value.
-      if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
+      EmitLoadStoreICSlot(slot);
       Handle<Code> ic =
           CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
       CallIC(ic);
@@ -2483,7 +2459,7 @@ void FullCodeGenerator::EmitVariableAssignment(Variable* var, Token::Value op,
     // Global var, const, or let.
     __ Move(StoreDescriptor::NameRegister(), var->name());
     __ movp(StoreDescriptor::ReceiverRegister(), GlobalObjectOperand());
-    if (FLAG_vector_stores) EmitLoadStoreICSlot(slot);
+    EmitLoadStoreICSlot(slot);
     CallStoreIC();
 
   } else if (var->mode() == LET && op != Token::INIT) {
@@ -2587,12 +2563,8 @@ void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
 
   __ Move(StoreDescriptor::NameRegister(), prop->key()->AsLiteral()->value());
   __ Pop(StoreDescriptor::ReceiverRegister());
-  if (FLAG_vector_stores) {
-    EmitLoadStoreICSlot(expr->AssignmentSlot());
-    CallStoreIC();
-  } else {
-    CallStoreIC(expr->AssignmentFeedbackId());
-  }
+  EmitLoadStoreICSlot(expr->AssignmentSlot());
+  CallStoreIC();
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(rax);
@@ -2636,12 +2608,8 @@ void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
   DCHECK(StoreDescriptor::ValueRegister().is(rax));
   Handle<Code> ic =
       CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
-  if (FLAG_vector_stores) {
-    EmitLoadStoreICSlot(expr->AssignmentSlot());
-    CallIC(ic);
-  } else {
-    CallIC(ic, expr->AssignmentFeedbackId());
-  }
+  EmitLoadStoreICSlot(expr->AssignmentSlot());
+  CallIC(ic);
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(rax);
@@ -4543,12 +4511,8 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
       __ Move(StoreDescriptor::NameRegister(),
               prop->key()->AsLiteral()->value());
       __ Pop(StoreDescriptor::ReceiverRegister());
-      if (FLAG_vector_stores) {
-        EmitLoadStoreICSlot(expr->CountSlot());
-        CallStoreIC();
-      } else {
-        CallStoreIC(expr->CountStoreFeedbackId());
-      }
+      EmitLoadStoreICSlot(expr->CountSlot());
+      CallStoreIC();
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
@@ -4586,12 +4550,8 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
       __ Pop(StoreDescriptor::ReceiverRegister());
       Handle<Code> ic =
           CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
-      if (FLAG_vector_stores) {
-        EmitLoadStoreICSlot(expr->CountSlot());
-        CallIC(ic);
-      } else {
-        CallIC(ic, expr->CountStoreFeedbackId());
-      }
+      EmitLoadStoreICSlot(expr->CountSlot());
+      CallIC(ic);
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
@@ -4893,7 +4853,7 @@ void FullCodeGenerator::ClearPendingMessage() {
 
 
 void FullCodeGenerator::EmitLoadStoreICSlot(FeedbackVectorSlot slot) {
-  DCHECK(FLAG_vector_stores && !slot.IsInvalid());
+  DCHECK(!slot.IsInvalid());
   __ Move(VectorStoreICTrampolineDescriptor::SlotRegister(), SmiFromSlot(slot));
 }