| Index: src/compiler/x64/instruction-selector-x64.cc | 
| diff --git a/src/compiler/x64/instruction-selector-x64.cc b/src/compiler/x64/instruction-selector-x64.cc | 
| index 9a93b9450a440de816e266662d1a43c1c685aba1..d18451db8871a1bd6ba4762f58daaeaa57b7970a 100644 | 
| --- a/src/compiler/x64/instruction-selector-x64.cc | 
| +++ b/src/compiler/x64/instruction-selector-x64.cc | 
| @@ -220,6 +220,9 @@ ArchOpcode GetLoadOpcode(LoadRepresentation load_rep) { | 
| opcode = kX64Movq; | 
| break; | 
| case MachineRepresentation::kSimd128:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x4:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x8:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x16:  // Fall through. | 
| case MachineRepresentation::kNone: | 
| UNREACHABLE(); | 
| break; | 
| @@ -252,6 +255,9 @@ ArchOpcode GetStoreOpcode(StoreRepresentation store_rep) { | 
| return kX64Movq; | 
| break; | 
| 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 kArchNop; | 
| @@ -399,6 +405,9 @@ void InstructionSelector::VisitCheckedLoad(Node* node) { | 
| break; | 
| case MachineRepresentation::kBit:      // Fall through. | 
| case MachineRepresentation::kSimd128:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x4:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x8:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x16:       // Fall through. | 
| case MachineRepresentation::kTaggedSigned:   // Fall through. | 
| case MachineRepresentation::kTaggedPointer:  // Fall through. | 
| case MachineRepresentation::kTagged:   // Fall through. | 
| @@ -454,6 +463,9 @@ void InstructionSelector::VisitCheckedStore(Node* node) { | 
| break; | 
| case MachineRepresentation::kBit:      // Fall through. | 
| case MachineRepresentation::kSimd128:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x4:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x8:  // Fall through. | 
| +    case MachineRepresentation::kSimd1x16:       // Fall through. | 
| case MachineRepresentation::kTaggedSigned:   // Fall through. | 
| case MachineRepresentation::kTaggedPointer:  // Fall through. | 
| case MachineRepresentation::kTagged:   // Fall through. | 
|  |