Desugar bitwise negation into XOR and kill all UnaryOp stuff.

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 366 matching lines @@
     CompareIC::StubInfoToType(
         stub_minor_key, left_type, right_type, combined_type, map, isolate());
   } else if (code->is_compare_nil_ic_stub()) {
     CompareNilICStub stub(code->extended_extra_ic_state());
     *combined_type = stub.GetType(isolate_, map);
     *left_type = *right_type = stub.GetInputType(isolate_, map);
   }
 }
 
 
-Handle<Type> TypeFeedbackOracle::UnaryType(TypeFeedbackId id) {
-  Handle<Object> object = GetInfo(id);
-  if (!object->IsCode()) {
-    return handle(Type::None(), isolate());
-  }
-  Handle<Code> code = Handle<Code>::cast(object);
-  ASSERT(code->is_unary_op_stub());
-  return UnaryOpStub(code->extended_extra_ic_state()).GetType(isolate());
-}
-
-
 void TypeFeedbackOracle::BinaryType(TypeFeedbackId id,
                                     Handle<Type>* left,
                                     Handle<Type>* right,
                                     Handle<Type>* result,
                                     Maybe<int>* fixed_right_arg) {
   Handle<Object> object = GetInfo(id);
   if (!object->IsCode()) {
     // For some binary ops we don't have ICs, e.g. Token::COMMA.
     *left = *right = *result = handle(Type::None(), isolate_);
     return;
@@ skipping 243 matching lines @@
         break;
 
       case Code::KEYED_LOAD_IC:
       case Code::KEYED_STORE_IC:
         if (target->ic_state() == MONOMORPHIC ||
             target->ic_state() == POLYMORPHIC) {
           SetInfo(ast_id, target);
         }
         break;
 
-      case Code::UNARY_OP_IC:
       case Code::BINARY_OP_IC:
       case Code::COMPARE_IC:
       case Code::TO_BOOLEAN_IC:
       case Code::COMPARE_NIL_IC:
         SetInfo(ast_id, target);
         break;
 
       default:
         break;
     }
@@ skipping 39 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