VM: Optimized context allocation on all platforms.

runtime/vm/assembler_mips.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 VM_ASSEMBLER_MIPS_H_
 #define VM_ASSEMBLER_MIPS_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_mips.h directly; use assembler.h instead.
 #endif
@@ skipping 29 matching lines @@
   int32_t value_;
 
   int32_t value() const { return value_; }
 
   friend class Assembler;
 };
 
 
 class Address : public ValueObject {
  public:
-  Address(Register base, int32_t offset = 0)
+  explicit Address(Register base, int32_t offset = 0)
       : ValueObject(), base_(base), offset_(offset) { }
 
   Address(const Address& other)
       : ValueObject(), base_(other.base_), offset_(other.offset_) { }
   Address& operator=(const Address& other) {
     base_ = other.base_;
     offset_ = other.offset_;
     return *this;
   }
 
@@ skipping 146 matching lines @@
 
   // Inlined allocation of an instance of class 'cls', code has no runtime
   // calls. Jump to 'failure' if the instance cannot be allocated here.
   // Allocated instance is returned in 'instance_reg'.
   // Only the tags field of the object is initialized.
   void TryAllocate(const Class& cls,
                    Label* failure,
                    Register instance_reg,
                    Register temp_reg);
 
+  void TryAllocateArray(intptr_t cid,
+                        intptr_t instance_size,
+                        Label* failure,
+                        Register instance,
+                        Register end_address,
+                        Register temp1,
+                        Register temp2);
+
   // Debugging and bringup support.
   void Stop(const char* message);
 
   // TODO(zra): TraceSimMsg enables printing of helpful messages when
   // --trace_sim is given. Eventually these calls will be changed to Comment.
   void TraceSimMsg(const char* message);
   void Unimplemented(const char* message);
   void Untested(const char* message);
   void Unreachable(const char* message);
 
@@ skipping 1141 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_MIPS_H_