Start using OStreams.

src/hydrogen-instructions.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/double.h"
 #include "src/factory.h"
 #include "src/hydrogen-infer-representation.h"
 #include "src/property-details-inl.h"
@@ skipping 507 matching lines @@
 
 void HValue::SetBlock(HBasicBlock* block) {
   ASSERT(block_ == NULL || block == NULL);
   block_ = block;
   if (id_ == kNoNumber && block != NULL) {
     id_ = block->graph()->GetNextValueID(this);
   }
 }
 
 
+OStream& operator<<(OStream& os, const HValue& v) {
+  // TODO(svenpanne) Temporary impedance matching, to be removed later.
+  HeapStringAllocator allocator;
+  StringStream stream(&allocator);
+  const_cast<HValue*>(&v)->PrintTo(&stream);
+  return os << stream.ToCString().get();
+}
+
+
 void HValue::PrintTypeTo(StringStream* stream) {
   if (!representation().IsTagged() || type().Equals(HType::Tagged())) return;
   stream->Add(" type:%s", type().ToString());
 }
 
 
 void HValue::PrintChangesTo(StringStream* stream) {
   GVNFlagSet changes_flags = ChangesFlags();
   if (changes_flags.IsEmpty()) return;
   stream->Add(" changes[");
@@ skipping 669 matching lines @@
         : SecondSuccessor();
     return true;
   }
   *block = NULL;
   return false;
 }
 
 
 void HBranch::PrintDataTo(StringStream* stream) {
   HUnaryControlInstruction::PrintDataTo(stream);
-  stream->Add(" ");
-  expected_input_types().Print(stream);
+  OStringStream os;
+  os << " " << expected_input_types();
+  stream->Add(os.c_str());
 }
 
 
 void HCompareMap::PrintDataTo(StringStream* stream) {
   value()->PrintNameTo(stream);
   stream->Add(" (%p)", *map().handle());
   HControlInstruction::PrintDataTo(stream);
   if (known_successor_index() == 0) {
     stream->Add(" [true]");
   } else if (known_successor_index() == 1) {
@@ skipping 3642 matching lines @@
       break;
     case kExternalMemory:
       stream->Add("[external-memory]");
       break;
   }
 
   stream->Add("@%d", offset());
 }
 
 } }  // namespace v8::internal