Make HConstant a bit more compact.

src/hydrogen-instructions.cc

 // Copyright 2011 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 999 matching lines @@
 
 
 void HEnterInlined::PrintDataTo(StringStream* stream) {
   SmartPointer<char> name = function()->debug_name()->ToCString();
   stream->Add("%s, id=%d", *name, function()->id());
 }
 
 
 HConstant::HConstant(Handle<Object> handle, Representation r)
     : handle_(handle),
-      constant_type_(HType::TypeFromValue(handle)),
       has_int32_value_(false),
+      has_double_value_(false),
       int32_value_(0),
-      has_double_value_(false),
       double_value_(0)  {
   set_representation(r);
   SetFlag(kUseGVN);
   if (handle_->IsNumber()) {
     double n = handle_->Number();
     double roundtrip_value = static_cast<double>(static_cast<int32_t>(n));
     has_int32_value_ = BitCast<int64_t>(roundtrip_value) == BitCast<int64_t>(n);
     if (has_int32_value_) int32_value_ = static_cast<int32_t>(n);
     double_value_ = n;
     has_double_value_ = true;
@@ skipping 394 matching lines @@
   HType result = HType::Uninitialized();
   for (int i = 0; i < OperandCount(); ++i) {
     HType current = OperandAt(i)->type();
     result = result.Combine(current);
   }
   return result;
 }
 
 
 HType HConstant::CalculateInferredType() {
-  return constant_type_;
+  return HType::TypeFromValue(handle_);
 }
 
 
 HType HCompare::CalculateInferredType() {
   return HType::Boolean();
 }
 
 
 HType HCompareJSObjectEq::CalculateInferredType() {
   return HType::Boolean();
@@ skipping 198 matching lines @@
 
 
 void HCheckPrototypeMaps::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal