func: static always_inline void gen_ext_h(void (*tcg_gen_ext_i64)(TCGv t0, TCGv t1),
  
                                      int ra, int rb, int rc,
  
                                      int islit, uint8_t lit)
  
  {
  
      if (unlikely(rc == 31))
  
          return;
  
  
  
      if (ra != 31) {
  
          if (islit) {
  
              if (lit != 0)
  
                  tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], 64 - ((lit & 7) * 8));
  
              else
  
                  tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[ra]);
  
          } else {
  
              TCGv tmp1, tmp2;
  
              tmp1 = tcg_temp_new(TCG_TYPE_I64);
  
              tcg_gen_andi_i64(tmp1, cpu_ir[rb], 7);
  
              tcg_gen_shli_i64(tmp1, tmp1, 3);
  
              tmp2 = tcg_const_i64(64);
  
              tcg_gen_sub_i64(tmp1, tmp2, tmp1);
  
              tcg_temp_free(tmp2);
  
              tcg_gen_shl_i64(cpu_ir[rc], cpu_ir[ra], tmp1);
  
              tcg_temp_free(tmp1);
  
          }
  
          if (tcg_gen_ext_i64)
  
              tcg_gen_ext_i64(cpu_ir[rc], cpu_ir[rc]);
  
      } else
  
          tcg_gen_movi_i64(cpu_ir[rc], 0);
  
  }
  