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

src/s390/simulator-s390.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.
 
 // Declares a Simulator for S390 instructions if we are not generating a native
 // S390 binary. This Simulator allows us to run and debug S390 code generation
 // on regular desktop machines.
 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro,
 // which will start execution in the Simulator or forwards to the real entry
 // on a S390 hardware platform.
@@ skipping 263 matching lines @@
   inline bool isWatchedStop(uint32_t bkpt_code);
   inline bool isEnabledStop(uint32_t bkpt_code);
   inline void EnableStop(uint32_t bkpt_code);
   inline void DisableStop(uint32_t bkpt_code);
   inline void IncreaseStopCounter(uint32_t bkpt_code);
   void PrintStopInfo(uint32_t code);
 
   // Byte Reverse
   inline int16_t ByteReverse(int16_t hword);
   inline int32_t ByteReverse(int32_t word);
+  inline int64_t ByteReverse(int64_t dword);
 
   // Read and write memory.
   inline uint8_t ReadBU(intptr_t addr);
   inline int8_t ReadB(intptr_t addr);
   inline void WriteB(intptr_t addr, uint8_t value);
   inline void WriteB(intptr_t addr, int8_t value);
 
   inline uint16_t ReadHU(intptr_t addr, Instruction* instr);
   inline int16_t ReadH(intptr_t addr, Instruction* instr);
   // Note: Overloaded on the sign of the value.
   inline void WriteH(intptr_t addr, uint16_t value, Instruction* instr);
   inline void WriteH(intptr_t addr, int16_t value, Instruction* instr);
 
   inline uint32_t ReadWU(intptr_t addr, Instruction* instr);
   inline int32_t ReadW(intptr_t addr, Instruction* instr);
+  inline int64_t ReadW64(intptr_t addr, Instruction* instr);
   inline void WriteW(intptr_t addr, uint32_t value, Instruction* instr);
   inline void WriteW(intptr_t addr, int32_t value, Instruction* instr);
 
   inline int64_t ReadDW(intptr_t addr);
   inline double ReadDouble(intptr_t addr);
   inline void WriteDW(intptr_t addr, int64_t value);
 
   // S390
   void Trace(Instruction* instr);
   bool DecodeTwoByte(Instruction* instr);
@@ skipping 968 matching lines @@
   static inline void UnregisterCTryCatch(v8::internal::Isolate* isolate) {
     Simulator::current(isolate)->PopAddress();
   }
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // !defined(USE_SIMULATOR)
 #endif  // V8_S390_SIMULATOR_S390_H_