Remove default monomorphic check code from functions and stubs that do not need it.

runtime/vm/assembler_arm64.h

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_ASSEMBLER_ARM64_H_
 #define RUNTIME_VM_ASSEMBLER_ARM64_H_
 
 #ifndef RUNTIME_VM_ASSEMBLER_H_
 #error Do not include assembler_arm64.h directly; use assembler.h instead.
 #endif
@@ skipping 449 matching lines @@
   void Drop(intptr_t stack_elements) {
     add(SP, SP, Operand(stack_elements * kWordSize));
   }
 
   void Bind(Label* label);
   void Jump(Label* label) { b(label); }
 
   // Misc. functionality
   intptr_t CodeSize() const { return buffer_.Size(); }
   intptr_t prologue_offset() const { return prologue_offset_; }
+  bool has_single_entry_point() const { return has_single_entry_point_; }
 
   // Count the fixups that produce a pointer offset, without processing
   // the fixups.  On ARM64 there are no pointers in code.
   intptr_t CountPointerOffsets() const { return 0; }
 
   const ZoneGrowableArray<intptr_t>& GetPointerOffsets() const {
     ASSERT(buffer_.pointer_offsets().length() == 0);  // No pointers in code.
     return buffer_.pointer_offsets();
   }
 
@@ skipping 876 matching lines @@
 
   void EnterCallRuntimeFrame(intptr_t frame_size);
   void LeaveCallRuntimeFrame();
   void CallRuntime(const RuntimeEntry& entry, intptr_t argument_count);
 
   // Set up a stub frame so that the stack traversal code can easily identify
   // a stub frame.
   void EnterStubFrame();
   void LeaveStubFrame();
 
-  void NoMonomorphicCheckedEntry();
   void MonomorphicCheckedEntry();
 
   void UpdateAllocationStats(intptr_t cid,
                              Heap::Space space);
 
   void UpdateAllocationStatsWithSize(intptr_t cid,
                                      Register size_reg,
                                      Heap::Space space);
 
   // If allocation tracing for |cid| is enabled, will jump to |trace| label,
@@ skipping 26 matching lines @@
                                     intptr_t index) const;
   Address ElementAddressForRegIndex(bool is_load,
                                     bool is_external,
                                     intptr_t cid,
                                     intptr_t index_scale,
                                     Register array,
                                     Register index);
 
  private:
   AssemblerBuffer buffer_;  // Contains position independent code.
-
   ObjectPoolWrapper object_pool_wrapper_;
-
   int32_t prologue_offset_;
-
+  bool has_single_entry_point_;
   bool use_far_branches_;
 
   class CodeComment : public ZoneAllocated {
    public:
     CodeComment(intptr_t pc_offset, const String& comment)
         : pc_offset_(pc_offset), comment_(comment) { }
 
     intptr_t pc_offset() const { return pc_offset_; }
     const String& comment() const { return comment_; }
 
@@ skipping 525 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_ASSEMBLER_ARM64_H_