A64: Use fixed width MemoryRead/Write in simulator.

src/a64/simulator-a64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 647 matching lines @@
   void LoadStorePairHelper(Instruction* instr, AddrMode addrmode);
   uint8_t* LoadStoreAddress(unsigned addr_reg,
                             int64_t offset,
                             AddrMode addrmode);
   void LoadStoreWriteBack(unsigned addr_reg,
                           int64_t offset,
                           AddrMode addrmode);
   void CheckMemoryAccess(uint8_t* address, uint8_t* stack);
 
   uint64_t MemoryRead(uint8_t* address, unsigned num_bytes);
-  uint8_t MemoryRead8(uint8_t* address);
-  uint16_t MemoryRead16(uint8_t* address);
-  uint32_t MemoryRead32(uint8_t* address);
+  template <typename T>
+  T MemoryRead(uint8_t* address) {
+    ASSERT(address != NULL);
+    T read = 0;
+    memcpy(&read, address, sizeof(T));
+    return read;
+  }
+  uint8_t MemoryRead8(uint8_t* address) {
+    return MemoryRead<uint8_t>(address);
+  }
+  uint16_t MemoryRead16(uint8_t* address) {
+    return MemoryRead<uint16_t>(address);
+  }
+  uint32_t MemoryRead32(uint8_t* address) {
+    return MemoryRead<uint32_t>(address);
+  }
+  uint64_t MemoryRead64(uint8_t* address) {
+    return MemoryRead<uint64_t>(address);
+  }
   float MemoryReadFP32(uint8_t* address);
-  uint64_t MemoryRead64(uint8_t* address);
   double MemoryReadFP64(uint8_t* address);
 
   void MemoryWrite(uint8_t* address, uint64_t value, unsigned num_bytes);
-  void MemoryWrite32(uint8_t* address, uint32_t value);
+  template <typename T>
+  void MemoryWrite(uint8_t* address, T value) {
+    ASSERT(address != NULL);
+    LogWrite(address, value, sizeof(T));
+    memcpy(address, &value, sizeof(T));
+  }
+  void MemoryWrite8(uint8_t* address, uint8_t value) {
+    MemoryWrite<uint8_t>(address, value);
+  }
+  void MemoryWrite16(uint8_t* address, uint16_t value) {
+    MemoryWrite<uint16_t>(address, value);
+  }
+  void MemoryWrite32(uint8_t* address, uint32_t value) {
+    MemoryWrite<uint32_t>(address, value);
+  }
+  void MemoryWrite64(uint8_t* address, uint64_t value) {
+    MemoryWrite<uint64_t>(address, value);
+  }
   void MemoryWriteFP32(uint8_t* address, float value);
-  void MemoryWrite64(uint8_t* address, uint64_t value);
   void MemoryWriteFP64(uint8_t* address, double value);
 
   int64_t ShiftOperand(unsigned reg_size,
                        int64_t value,
                        Shift shift_type,
                        unsigned amount);
   int64_t Rotate(unsigned reg_width,
                  int64_t value,
                  Shift shift_type,
                  unsigned amount);
@@ skipping 170 matching lines @@
   static void UnregisterCTryCatch() {
     Simulator::current(Isolate::Current())->PopAddress();
   }
 };
 
 #endif  // !defined(USE_SIMULATOR)
 
 } }  // namespace v8::internal
 
 #endif  // V8_A64_SIMULATOR_A64_H_