[WASM] Eliminate SIMD boolean vector types.

src/compiler/instruction-selector.h

 // 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.
 
 #ifndef V8_COMPILER_INSTRUCTION_SELECTOR_H_
 #define V8_COMPILER_INSTRUCTION_SELECTOR_H_
 
 #include <map>
 
 #include "src/compiler/common-operator.h"
@@ skipping 245 matching lines @@
   }
   void MarkAsFloat32(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kFloat32, node);
   }
   void MarkAsFloat64(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kFloat64, node);
   }
   void MarkAsSimd128(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kSimd128, node);
   }
-  void MarkAsSimd1x4(Node* node) {
-    if (kSimdMaskRegisters) {
-      MarkAsRepresentation(MachineRepresentation::kSimd1x4, node);
-    } else {
-      MarkAsSimd128(node);
-    }
-  }
-  void MarkAsSimd1x8(Node* node) {
-    if (kSimdMaskRegisters) {
-      MarkAsRepresentation(MachineRepresentation::kSimd1x8, node);
-    } else {
-      MarkAsSimd128(node);
-    }
-  }
-  void MarkAsSimd1x16(Node* node) {
-    if (kSimdMaskRegisters) {
-      MarkAsRepresentation(MachineRepresentation::kSimd1x16, node);
-    } else {
-      MarkAsSimd128(node);
-    }
-  }
   void MarkAsReference(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kTagged, node);
   }
 
   // Inform the register allocation of the representation of the unallocated
   // operand {op}.
   void MarkAsRepresentation(MachineRepresentation rep,
                             const InstructionOperand& op);
 
   enum CallBufferFlag {
@@ skipping 117 matching lines @@
   EnableSerialization enable_serialization_;
   Frame* frame_;
   bool instruction_selection_failed_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_H_