TurboFan: Introduce TaggedSigned and TaggedPointer representations.

src/compiler/simplified-lowering.cc

 // 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/compiler/simplified-lowering.h"
 
 #include <limits>
 
 #include "src/address-map.h"
 #include "src/base/bits.h"
@@ skipping 102 matching lines @@
       return UseInfo::CheckedNumberAsFloat64();
     case NumberOperationHint::kNumberOrOddball:
       return UseInfo::CheckedNumberOrOddballAsFloat64();
   }
   UNREACHABLE();
   return UseInfo::None();
 }
 
 UseInfo TruncatingUseInfoFromRepresentation(MachineRepresentation rep) {
   switch (rep) {
+    case MachineRepresentation::kTaggedSigned:
+    case MachineRepresentation::kTaggedPointer:
     case MachineRepresentation::kTagged:
       return UseInfo::AnyTagged();
     case MachineRepresentation::kFloat64:
       return UseInfo::TruncatingFloat64();
     case MachineRepresentation::kFloat32:
       return UseInfo::TruncatingFloat32();
     case MachineRepresentation::kWord64:
       return UseInfo::TruncatingWord64();
     case MachineRepresentation::kWord8:
     case MachineRepresentation::kWord16:
@@ skipping 3223 matching lines @@
         isolate(), graph()->zone(), callable.descriptor(), 0, flags,
         Operator::kNoProperties);
     to_number_operator_.set(common()->Call(desc));
   }
   return to_number_operator_.get();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8