[V8] Implement SIMD Boolean vector types to allow mask registers.

src/compiler/instruction.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/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/instruction.h"
 #include "src/compiler/schedule.h"
 #include "src/compiler/state-values-utils.h"
 
@@ skipping 190 matching lines @@
           break;
         case MachineRepresentation::kFloat32:
           os << "|f32";
           break;
         case MachineRepresentation::kFloat64:
           os << "|f64";
           break;
         case MachineRepresentation::kSimd128:
           os << "|s128";
           break;
+        case MachineRepresentation::kSimd1x4:
+          os << "|s1x4";
+          break;
+        case MachineRepresentation::kSimd1x8:
+          os << "|s1x8";
+          break;
+        case MachineRepresentation::kSimd1x16:
+          os << "|s1x16";
+          break;
         case MachineRepresentation::kTaggedSigned:
           os << "|ts";
           break;
         case MachineRepresentation::kTaggedPointer:
           os << "|tp";
           break;
         case MachineRepresentation::kTagged:
           os << "|t";
           break;
       }
@@ skipping 660 matching lines @@
   switch (rep) {
     case MachineRepresentation::kBit:
     case MachineRepresentation::kWord8:
     case MachineRepresentation::kWord16:
       return InstructionSequence::DefaultRepresentation();
     case MachineRepresentation::kWord32:
     case MachineRepresentation::kWord64:
     case MachineRepresentation::kFloat32:
     case MachineRepresentation::kFloat64:
     case MachineRepresentation::kSimd128:
+    case MachineRepresentation::kSimd1x4:
+    case MachineRepresentation::kSimd1x8:
+    case MachineRepresentation::kSimd1x16:
     case MachineRepresentation::kTaggedSigned:
     case MachineRepresentation::kTaggedPointer:
     case MachineRepresentation::kTagged:
       return rep;
     case MachineRepresentation::kNone:
       break;
   }
   UNREACHABLE();
   return MachineRepresentation::kNone;
 }
@@ skipping 187 matching lines @@
   for (int i = 0; i < code.InstructionBlockCount(); i++) {
     printable_block.block_ = code.InstructionBlockAt(RpoNumber::FromInt(i));
     os << printable_block;
   }
   return os;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8