Hydrogen: Re-use regular comparisons infrastructure for switch statements

src/type-info.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 413 matching lines @@
   BinaryOpIC::State state(code->extended_extra_ic_state());
   ASSERT_EQ(op, state.op());
 
   *left = state.GetLeftType(isolate());
   *right = state.GetRightType(isolate());
   *result = state.GetResultType(isolate());
   *fixed_right_arg = state.fixed_right_arg();
 }
 
 
-Handle<Type> TypeFeedbackOracle::ClauseType(TypeFeedbackId id) {
-  Handle<Object> info = GetInfo(id);
-  Handle<Type> result(Type::None(), isolate_);
-  if (info->IsCode() && Handle<Code>::cast(info)->is_compare_ic_stub()) {
-    Handle<Code> code = Handle<Code>::cast(info);
-    CompareIC::State state = ICCompareStub::CompareState(code->stub_info());
-    result = CompareIC::StateToType(isolate_, state);
-  }
-  return result;
-}
-
-
 Handle<Type> TypeFeedbackOracle::CountType(TypeFeedbackId id) {
   Handle<Object> object = GetInfo(id);
   if (!object->IsCode()) return handle(Type::None(), isolate_);
   Handle<Code> code = Handle<Code>::cast(object);
   ASSERT_EQ(Code::BINARY_OP_IC, code->kind());
   BinaryOpIC::State state(code->extended_extra_ic_state());
   return state.GetLeftType(isolate());
 }
 
 
@@ skipping 300 matching lines @@
   if (info.IsUninitialized()) return Representation::None();
   if (info.IsSmi()) return Representation::Smi();
   if (info.IsInteger32()) return Representation::Integer32();
   if (info.IsDouble()) return Representation::Double();
   if (info.IsNumber()) return Representation::Double();
   return Representation::Tagged();
 }
 
 
 } }  // namespace v8::internal