483       luaK_nil(fs, fs->freereg, needed);  /* complete with nils */  in adjust_assign()
488     fs->freereg += needed;  /* remove extra values */  in adjust_assign()
641   lua_assert(fs->freereg == luaY_nvarstack(fs));  in enterblock()
674   fs->freereg = stklevel;  /* free registers */  in leaveblock()
728   fs->freereg = 0;  in open_func()
840   int reg = ls->fs->freereg;  in recfield()
854   fs->freereg = reg;  /* free registers */  in recfield()
925   init_exp(t, VNONRELOC, fs->freereg);  /* table will be at stack top */  in constructor()
1052     nparams = fs->freereg - (base+1);  in funcargs()
1056   fs->freereg = base+1;  /* call remove function and arguments and leaves  in funcargs()
1323   int extra = fs->freereg;  /* eventual position to save local variable */  in check_conflict()
1391   init_exp(&e, VNONRELOC, ls->fs->freereg-1);  /* default assignment */  in restassign()
1562   int base = fs->freereg;  in fornum()
1574     luaK_int(fs, fs->freereg, 1);  in fornum()
1588   int base = fs->freereg;  in forlist()
1865         lua_assert(nret == fs->freereg - first);  in retstat()
1940   lua_assert(ls->fs->f->maxstacksize >= ls->fs->freereg &&  in statement()
1941              ls->fs->freereg >= luaY_nvarstack(ls->fs));  in statement()
1942   ls->fs->freereg = luaY_nvarstack(ls->fs);  /* free registers */  in statement()