TurboFan: Introduce TaggedSigned and TaggedPointer representations.

src/compiler/instruction.h

 // 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.
 
 #ifndef V8_COMPILER_INSTRUCTION_H_
 #define V8_COMPILER_INSTRUCTION_H_
 
 #include <deque>
 #include <iosfwd>
 #include <map>
@@ skipping 448 matching lines @@
     return RepresentationField::decode(value_);
   }
 
   static bool IsSupportedRepresentation(MachineRepresentation rep) {
     switch (rep) {
       case MachineRepresentation::kWord32:
       case MachineRepresentation::kWord64:
       case MachineRepresentation::kFloat32:
       case MachineRepresentation::kFloat64:
       case MachineRepresentation::kSimd128:
+      case MachineRepresentation::kTaggedSigned:
+      case MachineRepresentation::kTaggedPointer:
       case MachineRepresentation::kTagged:
         return true;
       case MachineRepresentation::kBit:
       case MachineRepresentation::kWord8:
       case MachineRepresentation::kWord16:
       case MachineRepresentation::kNone:
         return false;
     }
     UNREACHABLE();
     return false;
@@ skipping 1007 matching lines @@
 
 
 std::ostream& operator<<(std::ostream& os,
                          const PrintableInstructionSequence& code);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_H_