Print HAllocate flags in --trace-hydrogen.

src/hydrogen-instructions.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 3712 matching lines @@
   DeleteAndReplaceWith(dominated_allocate_instr);
   if (FLAG_trace_allocation_folding) {
     PrintF("#%d (%s) folded into #%d (%s)\n",
         id(), Mnemonic(), dominator->id(), dominator->Mnemonic());
   }
 }
 
 
 void HAllocate::PrintDataTo(StringStream* stream) {
   size()->PrintNameTo(stream);
-  if (!IsNewSpaceAllocation()) stream->Add(" (pretenure)");
+  stream->Add(" (");
+  if (IsNewSpaceAllocation()) stream->Add("N");
+  if (IsOldPointerSpaceAllocation()) stream->Add("P");
+  if (IsOldDataSpaceAllocation()) stream->Add("D");
+  if (MustAllocateDoubleAligned()) stream->Add("A");
+  if (MustPrefillWithFiller()) stream->Add("F");
+  stream->Add(")");
 }
 
 
 HValue* HUnaryMathOperation::EnsureAndPropagateNotMinusZero(
     BitVector* visited) {
   visited->Add(id());
   if (representation().IsSmiOrInteger32() &&
       !value()->representation().Equals(representation())) {
     if (value()->range() == NULL || value()->range()->CanBeMinusZero()) {
       SetFlag(kBailoutOnMinusZero);
@@ skipping 716 matching lines @@
       break;
     case kExternalMemory:
       stream->Add("[external-memory]");
       break;
   }
 
   stream->Add("@%d", offset());
 }
 
 } }  // namespace v8::internal