VM: Optimized context allocation on all platforms.

runtime/vm/assembler_x64.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_X64_H_
 #define VM_ASSEMBLER_X64_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_x64.h directly; use assembler.h instead.
 #endif
@@ skipping 843 matching lines @@
   //   call L             (size is 5 bytes)
   //   L:
   static const intptr_t kEntryPointToPcMarkerOffset = 9;
 
   void UpdateAllocationStats(intptr_t cid,
                              Heap::Space space = Heap::kNew);
 
   void UpdateAllocationStatsWithSize(intptr_t cid,
                                      Register size_reg,
                                      Heap::Space space = Heap::kNew);
+  void UpdateAllocationStatsWithSize(intptr_t cid,
+                                     intptr_t instance_size,
+                                     Heap::Space space = Heap::kNew);
 
   // 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.
   // Loads large immediates from the object pool with pool pointer in PP if it
   // is not kNoRegister
   void TryAllocate(const Class& cls,
                    Label* failure,
                    bool near_jump,
                    Register instance_reg,
                    Register pp);
 
+  void TryAllocateArray(intptr_t cid,
+                        intptr_t instance_size,
+                        Label* failure,
+                        bool near_jump,
+                        Register instance,
+                        Register end_address);
+
   // Debugging and bringup support.
   void Stop(const char* message);
   void Unimplemented(const char* message);
   void Untested(const char* message);
   void Unreachable(const char* message);
 
   static void InitializeMemoryWithBreakpoints(uword data, intptr_t length);
 
   static const char* RegisterName(Register reg);
 
@@ skipping 127 matching lines @@
   void EmitGenericShift(bool wide, int rm, Register reg, const Immediate& imm);
   void EmitGenericShift(bool wide, int rm, Register operand, Register shifter);
 
   void StoreIntoObjectFilter(Register object, Register value, Label* no_update);
 
   // Shorter filtering sequence that assumes that value is not a smi.
   void StoreIntoObjectFilterNoSmi(Register object,
                                   Register value,
                                   Label* no_update);
 
+  void ComputeCounterAddressesForCid(intptr_t cid,
+                                     Heap::Space space,
+                                     Address* count_address,
+                                     Address* size_address);
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 
 inline void Assembler::EmitUint8(uint8_t value) {
   buffer_.Emit<uint8_t>(value);
 }
 
 
@@ skipping 63 matching lines @@
 }
 
 
 inline void Assembler::EmitOperandSizeOverride() {
   EmitUint8(0x66);
 }
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_X64_H_