Enable pretenuring of fast literals in high promotion mode.

src/ia32/lithium-codegen-ia32.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 5983 matching lines @@
 
   __ SmiTag(size);
   PushSafepointRegistersScope scope(this);
   // TODO(3095996): Get rid of this. For now, we need to make the
   // result register contain a valid pointer because it is already
   // contained in the register pointer map.
   if (!size.is(result)) {
     __ StoreToSafepointRegisterSlot(result, size);
   }
   __ push(size);
-  CallRuntimeFromDeferred(
-      Runtime::kAllocateInNewSpace, 1, instr, instr->context());
+  if (instr->hydrogen()->CanAllocateInOldPointerSpace()) {
+    CallRuntimeFromDeferred(
+        Runtime::kAllocateInOldPointerSpace, 1, instr, instr->context());
+  } else {
+    CallRuntimeFromDeferred(
+        Runtime::kAllocateInNewSpace, 1, instr, instr->context());
+  }
   __ StoreToSafepointRegisterSlot(result, eax);
 }
 
 
 void LCodeGen::DoArrayLiteral(LArrayLiteral* instr) {
   ASSERT(ToRegister(instr->context()).is(esi));
   Handle<FixedArray> literals(instr->environment()->closure()->literals());
   ElementsKind boilerplate_elements_kind =
       instr->hydrogen()->boilerplate_elements_kind();
   AllocationSiteMode allocation_site_mode =
@@ skipping 528 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32