Add a kSimd128 machine type for Turbofan.

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/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 124 matching lines @@
     case MachineRepresentation::kFloat32:
       return UseInfo::Float32();
     case MachineRepresentation::kWord64:
     return UseInfo::TruncatingWord64();
     case MachineRepresentation::kWord8:
     case MachineRepresentation::kWord16:
     case MachineRepresentation::kWord32:
     return UseInfo::TruncatingWord32();
     case MachineRepresentation::kBit:
       return UseInfo::Bool();
+    case MachineRepresentation::kSimd128:  // Fall through.
     case MachineRepresentation::kNone:
       break;
   }
   UNREACHABLE();
   return UseInfo::None();
 }
 
 
 UseInfo UseInfoForBasePointer(const FieldAccess& access) {
   return access.tag() != 0 ? UseInfo::AnyTagged() : UseInfo::PointerInt();
@@ skipping 37 matching lines @@
              r2 == MachineRepresentation::kTagged;
     case MachineRepresentation::kWord64:
       return r2 == MachineRepresentation::kWord64;
     case MachineRepresentation::kFloat32:
       return r2 == MachineRepresentation::kFloat32 ||
              r2 == MachineRepresentation::kFloat64 ||
              r2 == MachineRepresentation::kTagged;
     case MachineRepresentation::kFloat64:
       return r2 == MachineRepresentation::kFloat64 ||
              r2 == MachineRepresentation::kTagged;
+    case MachineRepresentation::kSimd128:
+      return r2 == MachineRepresentation::kSimd128 ||
+             r2 == MachineRepresentation::kTagged;
     case MachineRepresentation::kTagged:
       return r2 == MachineRepresentation::kTagged;
   }
   UNREACHABLE();
   return false;
 }
 
 
 class InputUseInfos {
  public:
@@ skipping 1769 matching lines @@
   ReplaceEffectUses(node, comparison);
   node->ReplaceInput(0, comparison);
   node->ReplaceInput(1, jsgraph()->SmiConstant(EQUAL));
   node->TrimInputCount(2);
   NodeProperties::ChangeOp(node, machine()->IntLessThanOrEqual());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8