TurboFan: Introduce TaggedSigned and TaggedPointer representations.

src/compiler/register-allocator.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/base/adapters.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/register-allocator.h"
 #include "src/string-stream.h"
 
 namespace v8 {
@@ skipping 53 matching lines @@
   return code->InstructionAt(block->last_instruction_index());
 }
 
 // TODO(dcarney): fix frame to allow frame accesses to half size location.
 int GetByteWidth(MachineRepresentation rep) {
   switch (rep) {
     case MachineRepresentation::kBit:
     case MachineRepresentation::kWord8:
     case MachineRepresentation::kWord16:
     case MachineRepresentation::kWord32:
+    case MachineRepresentation::kTaggedSigned:
+    case MachineRepresentation::kTaggedPointer:
     case MachineRepresentation::kTagged:
       return kPointerSize;
     case MachineRepresentation::kFloat32:
 // TODO(bbudge) Eliminate this when FP register aliasing works.
 #if V8_TARGET_ARCH_ARM
       return kDoubleSize;
 #else
       return kPointerSize;
 #endif
     case MachineRepresentation::kWord64:
@@ skipping 3535 matching lines @@
         }
       }
     }
   }
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8