MIPS[64]: Implement insert.df and I8 instructions in simulator

src/mips/simulator-mips.h

 // Copyright 2011 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 MIPS instructions if we are not generating a native
 // MIPS binary. This Simulator allows us to run and debug MIPS 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
@@ skipping 318 matching lines @@
   };
 
   // Unsupported instructions use Format to print an error and stop execution.
   void Format(Instruction* instr, const char* format);
 
   // Helpers for data value tracing.
   enum TraceType { BYTE, HALF, WORD, DWORD, FLOAT, DOUBLE, FLOAT_DOUBLE };
 
   // MSA Data Format
   enum MSADataFormat { MSA_VECT = 0, MSA_BYTE, MSA_HALF, MSA_WORD, MSA_DWORD };
+  typedef union {
+    int8_t b[kMSALanesByte];
+    int16_t h[kMSALanesHalf];
+    int32_t w[kMSALanesWord];
+    int64_t d[kMSALanesDword];
+  } msa_reg_t;
 
   // Read and write memory.
   inline uint32_t ReadBU(int32_t addr);
   inline int32_t ReadB(int32_t addr);
   inline void WriteB(int32_t addr, uint8_t value);
   inline void WriteB(int32_t addr, int8_t value);
 
   inline uint16_t ReadHU(int32_t addr, Instruction* instr);
   inline int16_t ReadH(int32_t addr, Instruction* instr);
   // Note: Overloaded on the sign of the value.
   inline void WriteH(int32_t addr, uint16_t value, Instruction* instr);
   inline void WriteH(int32_t addr, int16_t value, Instruction* instr);
 
   inline int ReadW(int32_t addr, Instruction* instr, TraceType t = WORD);
   inline void WriteW(int32_t addr, int value, Instruction* instr);
 
   inline double ReadD(int32_t addr, Instruction* instr);
   inline void WriteD(int32_t addr, double value, Instruction* instr);
 
   void TraceRegWr(int32_t value, TraceType t = WORD);
   void TraceRegWr(int64_t value, TraceType t = DWORD);
   template <typename T>
   void TraceMSARegWr(T* value, TraceType t);
+  template <typename T>
+  void TraceMSARegWr(T* value);
   void TraceMemWr(int32_t addr, int32_t value, TraceType t = WORD);
   void TraceMemRd(int32_t addr, int32_t value, TraceType t = WORD);
   void TraceMemWr(int32_t addr, int64_t value, TraceType t = DWORD);
   void TraceMemRd(int32_t addr, int64_t value, TraceType t = DWORD);
   EmbeddedVector<char, 128> trace_buf_;
 
   // Operations depending on endianness.
   // Get Double Higher / Lower word.
   inline int32_t GetDoubleHIW(double* addr);
   inline int32_t GetDoubleLOW(double* addr);
@@ skipping 242 matching lines @@
   static inline void UnregisterCTryCatch(Isolate* isolate) {
     Simulator::current(isolate)->PopAddress();
   }
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // !defined(USE_SIMULATOR)
 #endif  // V8_MIPS_SIMULATOR_MIPS_H_