Add a kSimd128 machine type for Turbofan.

src/compiler/x87/instruction-selector-x87.cc

Index: src/compiler/x87/instruction-selector-x87.cc
diff --git a/src/compiler/x87/instruction-selector-x87.cc b/src/compiler/x87/instruction-selector-x87.cc
index 331ecb45c9fbff8b3291f4db2d127fd2310bd51a..7aaa4c66f0345661a0b9f8c8131738942fac423e 100644
--- a/src/compiler/x87/instruction-selector-x87.cc
+++ b/src/compiler/x87/instruction-selector-x87.cc
@@ -151,7 +151,8 @@ void InstructionSelector::VisitLoad(Node* node) {
     case MachineRepresentation::kWord32:
       opcode = kX87Movl;
       break;
-    case MachineRepresentation::kWord64:  // Fall through.
+    case MachineRepresentation::kWord64:   // Fall through.
+    case MachineRepresentation::kSimd128:  // Fall through.
     case MachineRepresentation::kNone:
       UNREACHABLE();
       return;
@@ -236,7 +237,8 @@ void InstructionSelector::VisitStore(Node* node) {
       case MachineRepresentation::kWord32:
         opcode = kX87Movl;
         break;
-      case MachineRepresentation::kWord64:  // Fall through.
+      case MachineRepresentation::kWord64:   // Fall through.
+      case MachineRepresentation::kSimd128:  // Fall through.
       case MachineRepresentation::kNone:
         UNREACHABLE();
         return;
@@ -288,9 +290,10 @@ void InstructionSelector::VisitCheckedLoad(Node* node) {
     case MachineRepresentation::kFloat64:
       opcode = kCheckedLoadFloat64;
       break;
-    case MachineRepresentation::kBit:     // Fall through.
-    case MachineRepresentation::kTagged:  // Fall through.
-    case MachineRepresentation::kWord64:  // Fall through.
+    case MachineRepresentation::kBit:      // Fall through.
+    case MachineRepresentation::kTagged:   // Fall through.
+    case MachineRepresentation::kWord64:   // Fall through.
+    case MachineRepresentation::kSimd128:  // Fall through.
     case MachineRepresentation::kNone:
       UNREACHABLE();
       return;
@@ -334,9 +337,10 @@ void InstructionSelector::VisitCheckedStore(Node* node) {
     case MachineRepresentation::kFloat64:
       opcode = kCheckedStoreFloat64;
       break;
-    case MachineRepresentation::kBit:     // Fall through.
-    case MachineRepresentation::kTagged:  // Fall through.
-    case MachineRepresentation::kWord64:  // Fall through.
+    case MachineRepresentation::kBit:      // Fall through.
+    case MachineRepresentation::kTagged:   // Fall through.
+    case MachineRepresentation::kWord64:   // Fall through.
+    case MachineRepresentation::kSimd128:  // Fall through.
     case MachineRepresentation::kNone:
       UNREACHABLE();
       return;