1 files changed, 74 insertions, 0 deletions
diff --git a/deps/v8/src/crankshaft/hydrogen-types.cc b/deps/v8/src/crankshaft/hydrogen-types.cc
new file mode 100644
index 0000000000..9c5e34194e
--- /dev/null
+++ b/deps/v8/src/crankshaft/hydrogen-types.cc
@@ -0,0 +1,74 @@
+// Copyright 2014 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/crankshaft/hydrogen-types.h"
+
+#include "src/ostreams.h"
+#include "src/types-inl.h"
+
+
+namespace v8 {
+namespace internal {
+
+// static
+template <class T>
+HType HType::FromType(typename T::TypeHandle type) {
+  if (T::Any()->Is(type)) return HType::Any();
+  if (!type->IsInhabited()) return HType::None();
+  if (type->Is(T::SignedSmall())) return HType::Smi();
+  if (type->Is(T::Number())) return HType::TaggedNumber();
+  if (type->Is(T::Null())) return HType::Null();
+  if (type->Is(T::String())) return HType::String();
+  if (type->Is(T::Boolean())) return HType::Boolean();
+  if (type->Is(T::Undefined())) return HType::Undefined();
+  if (type->Is(T::Object())) return HType::JSObject();
+  if (type->Is(T::Receiver())) return HType::JSReceiver();
+  return HType::Tagged();
+}
+
+
+// static
+template
+HType HType::FromType<Type>(Type* type);
+
+
+// static
+template
+HType HType::FromType<HeapType>(Handle<HeapType> type);
+
+
+// static
+HType HType::FromValue(Handle<Object> value) {
+  if (value->IsSmi()) return HType::Smi();
+  if (value->IsNull()) return HType::Null();
+  if (value->IsHeapNumber()) {
+    double n = Handle<v8::internal::HeapNumber>::cast(value)->value();
+    return IsSmiDouble(n) ? HType::Smi() : HType::HeapNumber();
+  }
+  if (value->IsString()) return HType::String();
+  if (value->IsBoolean()) return HType::Boolean();
+  if (value->IsUndefined()) return HType::Undefined();
+  if (value->IsJSArray()) return HType::JSArray();
+  if (value->IsJSObject()) return HType::JSObject();
+  DCHECK(value->IsHeapObject());
+  return HType::HeapObject();
+}
+
+
+std::ostream& operator<<(std::ostream& os, const HType& t) {
+  // Note: The c1visualizer syntax for locals allows only a sequence of the
+  // following characters: A-Za-z0-9_-|:
+  switch (t.kind_) {
+#define DEFINE_CASE(Name, mask) \
+  case HType::k##Name:          \
+    return os << #Name;
+    HTYPE_LIST(DEFINE_CASE)
+#undef DEFINE_CASE
+  }
+  UNREACHABLE();
+  return os;
+}
+
+}  // namespace internal
+}  // namespace v8