Reland "Merge old data and pointer space."

src/arm64/macro-assembler-arm64.h

 // 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.
 
 #ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 #define V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 
 #include <vector>
 
 #include "src/bailout-reason.h"
@@ skipping 1266 matching lines @@
   void PushStackHandler();
 
   // Unlink the stack handler on top of the stack from the stack handler chain.
   // Must preserve the result register.
   void PopStackHandler();
 
 
   // ---------------------------------------------------------------------------
   // Allocation support
 
-  // Allocate an object in new space or old pointer space. The object_size is
+  // Allocate an object in new space or old space. The object_size is
   // specified either in bytes or in words if the allocation flag SIZE_IN_WORDS
   // is passed. The allocated object is returned in result.
   //
   // If the new space is exhausted control continues at the gc_required label.
   // In this case, the result and scratch registers may still be clobbered.
   // If flags includes TAG_OBJECT, the result is tagged as as a heap object.
   void Allocate(Register object_size,
                 Register result,
                 Register scratch1,
                 Register scratch2,
@@ skipping 1000 matching lines @@
 #error "Unsupported option"
 #define CODE_COVERAGE_STRINGIFY(x) #x
 #define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x)
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 #endif  // V8_ARM64_MACRO_ASSEMBLER_ARM64_H_