Add out-of-line constant pool support to Arm.

src/v8globals.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 220 matching lines @@
 //  +==================+========+==================+
 //  ^
 //  |
 //  buffer
 
 struct CodeDesc {
   byte* buffer;
   int buffer_size;
   int instr_size;
   int reloc_size;
+  int constant_pool_64bit_count;
+  int constant_pool_code_ptr_count;
+  int constant_pool_heap_ptr_count;
+  int constant_pool_32bit_count;
   Assembler* origin;
+
+  inline bool has_empty_constant_pool() const {
+    return constant_pool_64bit_count == 0 &&
+           constant_pool_code_ptr_count == 0 &&
+           constant_pool_heap_ptr_count == 0 &&
+           constant_pool_32bit_count == 0;
+  }
 };
 
 
 // Callback function used for iterating objects in heap spaces,
 // for example, scanning heap objects.
 typedef int (*HeapObjectCallback)(HeapObject* obj);
 
 
 // Callback function used for checking constraints when copying/relocating
 // objects. Returns true if an object can be copied/relocated from its
@@ skipping 306 matching lines @@
 
 
 enum MinusZeroMode {
   TREAT_MINUS_ZERO_AS_ZERO,
   FAIL_ON_MINUS_ZERO
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8GLOBALS_H_