Function freereg

3rd/lua-5.4.3/src/lcode.c:490–495

** Free register 'reg', if it is neither a constant index nor ** a local variable. ) */

)
*/
static void freereg (FuncState *fs, int reg) {
  if (reg >= luaY_nvarstack(fs)) {
    fs->freereg--;
    lua_assert(reg == fs->freereg);
  }
}


/*