[WASM] Simplify SIMD shuffle opcodes.

src/compiler/machine-operator.cc

 // 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.
 
 #include "src/compiler/machine-operator.h"
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 
@@ skipping 963 matching lines @@
   }                                                                            \
   const Operator* MachineOperatorBuilder::I##format##ShrU(int32_t shift) {     \
     DCHECK(0 <= shift && shift < bits);                                        \
     return new (zone_)                                                         \
         Operator1<int32_t>(IrOpcode::kI##format##ShrU, Operator::kPure,        \
                            "Shift right", 1, 0, 0, 1, 0, 0, shift);            \
   }
 SIMD_FORMAT_LIST(SIMD_SHIFT_OPS)
 #undef SIMD_SHIFT_OPS
 
-const Operator* MachineOperatorBuilder::S32x4Shuffle(uint8_t shuffle[16]) {
-  uint8_t* array = zone_->NewArray<uint8_t>(4);
-  memcpy(array, shuffle, 4);
-  return new (zone_)
-      Operator1<uint8_t*>(IrOpcode::kS32x4Shuffle, Operator::kPure, "Shuffle",
-                          2, 0, 0, 1, 0, 0, array);
-}
-
-const Operator* MachineOperatorBuilder::S16x8Shuffle(uint8_t shuffle[16]) {
-  uint8_t* array = zone_->NewArray<uint8_t>(8);
-  memcpy(array, shuffle, 8);
-  return new (zone_)
-      Operator1<uint8_t*>(IrOpcode::kS16x8Shuffle, Operator::kPure, "Shuffle",
-                          2, 0, 0, 1, 0, 0, array);
-}
-
 const Operator* MachineOperatorBuilder::S8x16Shuffle(uint8_t shuffle[16]) {
   uint8_t* array = zone_->NewArray<uint8_t>(16);
   memcpy(array, shuffle, 16);
   return new (zone_)
       Operator1<uint8_t*>(IrOpcode::kS8x16Shuffle, Operator::kPure, "Shuffle",
                           2, 0, 0, 1, 0, 0, array);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8