Remove CallFunctionStub, always call through the Call builtin (also from CallIC)

src/crankshaft/arm64/lithium-codegen-arm64.cc

 // Copyright 2013 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/crankshaft/arm64/lithium-codegen-arm64.h"
 
 #include "src/arm64/frames-arm64.h"
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 353 matching lines @@
   }
 }
 
 
 void LCodeGen::DoCallFunction(LCallFunction* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->function()).Is(x1));
   DCHECK(ToRegister(instr->result()).Is(x0));
 
   int arity = instr->arity();
-  CallFunctionFlags flags = instr->hydrogen()->function_flags();
   if (instr->hydrogen()->HasVectorAndSlot()) {
     Register slot_register = ToRegister(instr->temp_slot());
     Register vector_register = ToRegister(instr->temp_vector());
     DCHECK(slot_register.is(x3));
     DCHECK(vector_register.is(x2));
 
     AllowDeferredHandleDereference vector_structure_check;
     Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector();
     int index = vector->GetIndex(instr->hydrogen()->slot());
 
     __ Mov(vector_register, vector);
     __ Mov(slot_register, Operand(Smi::FromInt(index)));
 
-    CallICState::CallType call_type =
-        (flags & CALL_AS_METHOD) ? CallICState::METHOD : CallICState::FUNCTION;
-
     Handle<Code> ic =
-        CodeFactory::CallICInOptimizedCode(isolate(), arity, call_type).code();
+        CodeFactory::CallICInOptimizedCode(isolate(), arity).code();
     CallCode(ic, RelocInfo::CODE_TARGET, instr);
   } else {
-    CallFunctionStub stub(isolate(), arity, flags);
-    CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
+    __ Mov(x0, arity);
+    CallCode(isolate()->builtins()->Call(), RelocInfo::CODE_TARGET, instr);
   }
   RecordPushedArgumentsDelta(instr->hydrogen()->argument_delta());
 }
 
 
 void LCodeGen::DoCallNew(LCallNew* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(instr->IsMarkedAsCall());
   DCHECK(ToRegister(instr->constructor()).is(x1));
 
@@ skipping 5561 matching lines @@
   Handle<ScopeInfo> scope_info = instr->scope_info();
   __ Push(scope_info);
   __ Push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 }  // namespace internal
 }  // namespace v8