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

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 ed78f12829e511800f910785f47238a74e3dc15f..c2770b3ce8539c371cc722e1d3854f364cd1475f 100644
--- a/src/compiler/ppc/instruction-selector-ppc.cc
+++ b/src/compiler/ppc/instruction-selector-ppc.cc
@@ -216,6 +216,9 @@ 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;
@@ -325,6 +328,9 @@ 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;
@@ -389,6 +395,9 @@ 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;
@@ -437,6 +446,9 @@ 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;