MIPS: Change inlined cache of intanceof stub to use indirection through cell.

src/mips/lithium-codegen-mips.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 2000 matching lines @@
   // instanceof stub.
   Label cache_miss;
   Register map = temp;
   __ lw(map, FieldMemOperand(object, HeapObject::kMapOffset));
 
   Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_);
   __ bind(deferred->map_check());  // Label for calculating code patching.
   // We use Factory::the_hole_value() on purpose instead of loading from the
   // root array to force relocation to be able to later patch with
   // the cached map.
-  __ li(at, Operand(factory()->the_hole_value()), true);
+  Handle<JSGlobalPropertyCell> cell =
+      factory()->NewJSGlobalPropertyCell(factory()->the_hole_value());
+  __ li(at, Operand(Handle<Object>(cell)));
+  __ lw(at, FieldMemOperand(at, JSGlobalPropertyCell::kValueOffset));
   __ Branch(&cache_miss, ne, map, Operand(at));
   // We use Factory::the_hole_value() on purpose instead of loading from the
   // root array to force relocation to be able to later patch
   // with true or false.
   __ li(result, Operand(factory()->the_hole_value()), true);
   __ Branch(&done);
 
   // The inlined call site cache did not match. Check null and string before
   // calling the deferred code.
   __ bind(&cache_miss);
@@ skipping 2674 matching lines @@
   ASSERT(!environment->HasBeenRegistered());
   RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt);
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal