Simplify dispatch in FullCodeGenerator::VisitCall a bit.

src/arm64/macro-assembler-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.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 3554 matching lines @@
   JumpIfNotObjectType(result, scratch, scratch, MAP_TYPE, &done);
 
   // Get the prototype from the initial map.
   Ldr(result, FieldMemOperand(result, Map::kPrototypeOffset));
 
   // All done.
   Bind(&done);
 }
 
 
+void MacroAssembler::PushRoot(Heap::RootListIndex index) {
+  UseScratchRegisterScope temps(this);
+  Register temp = temps.AcquireX();
+  LoadRoot(temp, index);
+  Push(temp);
+}
+
+
 void MacroAssembler::CompareRoot(const Register& obj,
                                  Heap::RootListIndex index) {
   UseScratchRegisterScope temps(this);
   Register temp = temps.AcquireX();
   DCHECK(!AreAliased(obj, temp));
   LoadRoot(temp, index);
   Cmp(obj, temp);
 }
 
 
@@ skipping 1482 matching lines @@
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64