Allocation Info Tracking, continued.

src/x64/macro-assembler-x64.cc

 // 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 4251 matching lines @@
   // Load the global or builtins object from the current context.
   movq(function,
        Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
   // Load the native context from the global or builtins object.
   movq(function, FieldOperand(function, GlobalObject::kNativeContextOffset));
   // Load the function from the native context.
   movq(function, Operand(function, Context::SlotOffset(index)));
 }
 
 
+void MacroAssembler::LoadArrayFunction(Register function) {
+  movq(function,
+       Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
+  movq(function, FieldOperand(function, GlobalObject::kGlobalContextOffset));
+  movq(function,
+       Operand(function, Context::SlotOffset(Context::ARRAY_FUNCTION_INDEX)));
+}
+
+
 void MacroAssembler::LoadGlobalFunctionInitialMap(Register function,
                                                   Register map) {
   // Load the initial map.  The global functions all have initial maps.
   movq(map, FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset));
   if (emit_debug_code()) {
     Label ok, fail;
     CheckMap(map, isolate()->factory()->meta_map(), &fail, DO_SMI_CHECK);
     jmp(&ok);
     bind(&fail);
     Abort("Global functions must have initial map");
@@ skipping 337 matching lines @@
   j(greater, &no_info_available);
   CompareRoot(MemOperand(scratch_reg, -AllocationSiteInfo::kSize),
               Heap::kAllocationSiteInfoMapRootIndex);
   bind(&no_info_available);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64