message: Put m_srcs to the end of IRInstruction
  Summary: Put m_srcs to the end of IRInstruction. The size of IRInstrction object reduces to 40 bytes from 48 bytes.
diff: @@ -320,7 +320,6 @@ class IRInstruction final {
  private:
  IROpcode m_opcode;
  - std::vector<uint16_t> m_srcs;
  uint16_t m_dest{0};
  union {
  // Zero-initialize this union with the uint64_t member instead of a
  @@ -332,6 +331,8 @@ class IRInstruction final {
  DexMethodRef* m_method;
  DexOpcodeData* m_data;
  };
  + // Put m_srcs at the end for dense packing
  + std::vector<uint16_t> m_srcs;
  };
  /*
  