Removing FLAG_vector_ics.

src/arm64/lithium-codegen-arm64.cc

Index: src/arm64/lithium-codegen-arm64.cc
diff --git a/src/arm64/lithium-codegen-arm64.cc b/src/arm64/lithium-codegen-arm64.cc
index b9667ab215eae4fa788e33e85c1e3352cb518352..130d10f51d236bbcd57c97ec88f5597885b4139a 100644
--- a/src/arm64/lithium-codegen-arm64.cc
+++ b/src/arm64/lithium-codegen-arm64.cc
@@ -2022,29 +2022,6 @@ void LCodeGen::CallKnownFunction(Handle<JSFunction> function,
 }
 
 
-void LCodeGen::DoTailCallThroughMegamorphicCache(
-    LTailCallThroughMegamorphicCache* instr) {
-  Register receiver = ToRegister(instr->receiver());
-  Register name = ToRegister(instr->name());
-  DCHECK(receiver.is(LoadDescriptor::ReceiverRegister()));
-  DCHECK(name.is(LoadDescriptor::NameRegister()));
-  DCHECK(receiver.is(x1));
-  DCHECK(name.is(x2));
-  Register scratch = x4;
-  Register extra = x5;
-  Register extra2 = x6;
-  Register extra3 = x7;
-
-  // The probe will tail call to a handler if found.
-  isolate()->stub_cache()->GenerateProbe(
-      masm(), Code::LOAD_IC, instr->hydrogen()->flags(), false, receiver, name,
-      scratch, extra, extra2, extra3);
-
-  // Tail call to miss if we ended up here.
-  LoadIC::GenerateMiss(masm());
-}
-
-
 void LCodeGen::DoCallWithDescriptor(LCallWithDescriptor* instr) {
   DCHECK(instr->IsMarkedAsCall());
   DCHECK(ToRegister(instr->result()).Is(x0));
@@ -3362,7 +3339,6 @@ void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) {
 
 template <class T>
 void LCodeGen::EmitVectorLoadICRegisters(T* instr) {
-  DCHECK(FLAG_vector_ics);
   Register vector_register = ToRegister(instr->temp_vector());
   Register slot_register = VectorLoadICDescriptor::SlotRegister();
   DCHECK(vector_register.is(VectorLoadICDescriptor::VectorRegister()));
@@ -3384,9 +3360,7 @@ void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) {
              .is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->result()).Is(x0));
   __ Mov(LoadDescriptor::NameRegister(), Operand(instr->name()));
-  if (FLAG_vector_ics) {
-    EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr);
-  }
+  EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr);
   ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL;
   Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(isolate(), mode,
                                                        PREMONOMORPHIC).code();
@@ -3713,9 +3687,7 @@ void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) {
   // LoadIC expects name and receiver in registers.
   DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister()));
   __ Mov(LoadDescriptor::NameRegister(), Operand(instr->name()));
-  if (FLAG_vector_ics) {
-    EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr);
-  }
+  EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr);
 
   Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(
                         isolate(), NOT_CONTEXTUAL,