[compiler] [wasm] Introduce Word32/64ReverseBytes as TF Optional Opcode

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 356 matching lines @@
   V(Simd128And, Operator::kAssociative | Operator::kCommutative, 2, 0, 1)    \
   V(Simd128Or, Operator::kAssociative | Operator::kCommutative, 2, 0, 1)     \
   V(Simd128Xor, Operator::kAssociative | Operator::kCommutative, 2, 0, 1)    \
   V(Simd128Not, Operator::kNoProperties, 1, 0, 1)
 
 #define PURE_OPTIONAL_OP_LIST(V)                            \
   V(Word32Ctz, Operator::kNoProperties, 1, 0, 1)            \
   V(Word64Ctz, Operator::kNoProperties, 1, 0, 1)            \
   V(Word32ReverseBits, Operator::kNoProperties, 1, 0, 1)    \
   V(Word64ReverseBits, Operator::kNoProperties, 1, 0, 1)    \
+  V(Word32ReverseBytes, Operator::kNoProperties, 1, 0, 1)   \
+  V(Word64ReverseBytes, Operator::kNoProperties, 1, 0, 1)   \
   V(Word32Popcnt, Operator::kNoProperties, 1, 0, 1)         \
   V(Word64Popcnt, Operator::kNoProperties, 1, 0, 1)         \
   V(Float32Max, Operator::kNoProperties, 2, 0, 1)           \
   V(Float32Min, Operator::kNoProperties, 2, 0, 1)           \
   V(Float64Max, Operator::kNoProperties, 2, 0, 1)           \
   V(Float64Min, Operator::kNoProperties, 2, 0, 1)           \
   V(Float32RoundDown, Operator::kNoProperties, 1, 0, 1)     \
   V(Float64RoundDown, Operator::kNoProperties, 1, 0, 1)     \
   V(Float32RoundUp, Operator::kNoProperties, 1, 0, 1)       \
   V(Float64RoundUp, Operator::kNoProperties, 1, 0, 1)       \
@@ skipping 334 matching lines @@
   }
   ATOMIC_REPRESENTATION_LIST(STORE)
 #undef STORE
   UNREACHABLE();
   return nullptr;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8