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

runtime/vm/assembler_arm.h

 // Copyright (c) 2013, 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_ARM_H_
 #define RUNTIME_VM_ASSEMBLER_ARM_H_
 
 #ifndef RUNTIME_VM_ASSEMBLER_H_
 #error Do not include assembler_arm.h directly; use assembler.h instead.
 #endif
@@ skipping 348 matching lines @@
     return *this;
   }
 };
 
 
 class Assembler : public ValueObject {
  public:
   explicit Assembler(bool use_far_branches = false)
       : buffer_(),
         prologue_offset_(-1),
+        has_single_entry_point_(true),
         use_far_branches_(use_far_branches),
         comments_(),
         constant_pool_allowed_(false) {
-    MonomorphicCheckedEntry();
   }
 
   ~Assembler() { }
 
   void PopRegister(Register r) { Pop(r); }
 
   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 ARM 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 544 matching lines @@
   // Set up a Dart frame for a function compiled for on-stack replacement.
   // The frame layout is a normal Dart frame, but the frame is partially set
   // up on entry (it is the frame of the unoptimized code).
   void EnterOsrFrame(intptr_t extra_size);
 
   // 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();
 
   // The register into which the allocation stats table is loaded with
   // LoadAllocationStatsAddress should be passed to
   // IncrementAllocationStats(WithSize) as stats_addr_reg to update the
   // allocation stats. These are separate assembler macros so we can
   // avoid a dependent load too nearby the load of the table address.
   void LoadAllocationStatsAddress(Register dest,
                                   intptr_t cid);
   void IncrementAllocationStats(Register stats_addr,
@@ skipping 52 matching lines @@
   bool constant_pool_allowed() const {
     return constant_pool_allowed_;
   }
   void set_constant_pool_allowed(bool b) {
     constant_pool_allowed_ = b;
   }
 
  private:
   AssemblerBuffer buffer_;  // Contains position independent code.
   ObjectPoolWrapper object_pool_wrapper_;
-
   int32_t prologue_offset_;
-
+  bool has_single_entry_point_;
   bool use_far_branches_;
 
   // If you are thinking of using one or both of these instructions directly,
   // instead LoadImmediate should probably be used.
   void movw(Register rd, uint16_t imm16, Condition cond = AL);
   void movt(Register rd, uint16_t imm16, Condition cond = AL);
 
   void BindARMv6(Label* label);
   void BindARMv7(Label* label);
 
@@ skipping 137 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_ASSEMBLER_ARM_H_