[WASM] Eliminate SIMD boolean vector types.

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

Index: src/compiler/ppc/instruction-selector-ppc.cc
diff --git a/src/compiler/ppc/instruction-selector-ppc.cc b/src/compiler/ppc/instruction-selector-ppc.cc
index ceee659b1986f068e43e5a4781ebb9b74369d7a3..0363896b8d89113b0c15bc821909d94ff6a70474 100644
--- a/src/compiler/ppc/instruction-selector-ppc.cc
+++ b/src/compiler/ppc/instruction-selector-ppc.cc
@@ -224,9 +224,6 @@ void InstructionSelector::VisitLoad(Node* node) {
     case MachineRepresentation::kWord64:  // Fall through.
 #endif
     case MachineRepresentation::kSimd128:  // Fall through.
-    case MachineRepresentation::kSimd1x4:  // Fall through.
-    case MachineRepresentation::kSimd1x8:  // Fall through.
-    case MachineRepresentation::kSimd1x16:  // Fall through.
     case MachineRepresentation::kNone:
       UNREACHABLE();
       return;
@@ -336,9 +333,6 @@ void InstructionSelector::VisitStore(Node* node) {
       case MachineRepresentation::kWord64:  // Fall through.
 #endif
       case MachineRepresentation::kSimd128:  // Fall through.
-      case MachineRepresentation::kSimd1x4:  // Fall through.
-      case MachineRepresentation::kSimd1x8:  // Fall through.
-      case MachineRepresentation::kSimd1x16:  // Fall through.
       case MachineRepresentation::kNone:
         UNREACHABLE();
         return;
@@ -403,9 +397,6 @@ void InstructionSelector::VisitCheckedLoad(Node* node) {
     case MachineRepresentation::kWord64:  // Fall through.
 #endif
     case MachineRepresentation::kSimd128:  // Fall through.
-    case MachineRepresentation::kSimd1x4:  // Fall through.
-    case MachineRepresentation::kSimd1x8:  // Fall through.
-    case MachineRepresentation::kSimd1x16:  // Fall through.
     case MachineRepresentation::kNone:
       UNREACHABLE();
       return;
@@ -454,9 +445,6 @@ void InstructionSelector::VisitCheckedStore(Node* node) {
     case MachineRepresentation::kWord64:  // Fall through.
 #endif
     case MachineRepresentation::kSimd128:  // Fall through.
-    case MachineRepresentation::kSimd1x4:  // Fall through.
-    case MachineRepresentation::kSimd1x8:  // Fall through.
-    case MachineRepresentation::kSimd1x16:  // Fall through.
     case MachineRepresentation::kNone:
       UNREACHABLE();
       return;