[wasm] Add native x64 implementations for I32x4Splat, I32x4ExtractLane

src/wasm/wasm-opcodes.h

 // Copyright 2015 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_WASM_OPCODES_H_
 #define V8_WASM_OPCODES_H_
 
 #include "src/machine-type.h"
 #include "src/signature.h"
 
@@ skipping 489 matching lines @@
   static LocalTypeCode LocalTypeCodeFor(LocalType type) {
     switch (type) {
       case kAstI32:
         return kLocalI32;
       case kAstI64:
         return kLocalI64;
       case kAstF32:
         return kLocalF32;
       case kAstF64:
         return kLocalF64;
+      case kAstS128:
+        return kLocalS128;
       case kAstStmt:
         return kLocalVoid;
-      case kAstS128:
-        return kLocalS128;
       default:
         UNREACHABLE();
         return kLocalVoid;
     }
   }
 
   static MachineType MachineTypeFor(LocalType type) {
     switch (type) {
       case kAstI32:
         return MachineType::Int32();
@@ skipping 110 matching lines @@
       default:
         return "<unknown>";
     }
   }
 };
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_OPCODES_H_