Use placement-new operator in the register allocator.

src/hydrogen.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 7599 matching lines @@
     TraceLiveRange(live_ranges->at(i), "object");
   }
 }
 
 
 void HTracer::TraceLiveRange(LiveRange* range, const char* type) {
   if (range != NULL && !range->IsEmpty()) {
     PrintIndent();
     trace_.Add("%d %s", range->id(), type);
     if (range->HasRegisterAssigned()) {
-      LOperand* op = range->CreateAssignedOperand();
+      LOperand* op = range->CreateAssignedOperand(ZONE);
       int assigned_reg = op->index();
       if (op->IsDoubleRegister()) {
         trace_.Add(" \"%s\"",
                    DoubleRegister::AllocationIndexToString(assigned_reg));
       } else {
         ASSERT(op->IsRegister());
         trace_.Add(" \"%s\"", Register::AllocationIndexToString(assigned_reg));
       }
     } else if (range->IsSpilled()) {
       LOperand* op = range->TopLevel()->GetSpillOperand();
@@ skipping 138 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify(false);  // No full verify.
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal