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lua: fix regressions in operator overloading caused by the refcounting patch, also fix some more variable cleanup issues => even more performance, less memory utilization

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18164 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2009-10-26 14:27:30 +00:00
parent 706035474c
commit c3dbd7adde
1 changed files with 3 additions and 71 deletions
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74
package/lua/patches/600-refcounting.patch
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@ -205,7 +205,7 @@
lua_unlock(L);
return res;
}
@@ -1040,20 +1046,22 @@ LUA_API int lua_next (lua_State *L, int
@@ -1040,20 +1046,21 @@ LUA_API int lua_next (lua_State *L, int
if (more) {
api_incr_top(L);
}
@ -220,7 +220,6 @@
LUA_API void lua_concat (lua_State *L, int n) {
+ int i;
lua_lock(L);
api_checknelems(L, n);
if (n >= 2) {
@ -519,36 +518,6 @@
}
}
return p;
@@ -452,22 +455,27 @@ static void GCTM (lua_State *L) {
g->tmudata = NULL;
else
g->tmudata->gch.next = udata->uv.next;
+ udata->uv.prev = (GCObject *)g->mainthread;
udata->uv.next = g->mainthread->next; /* return it to `root' list */
g->mainthread->next = o;
+ if (udata->uv.next)
+ udata->uv.next->uv.prev = o;
makewhite(g, o);
+ L->top++;
tm = fasttm(L, udata->uv.metatable, TM_GC);
if (tm != NULL) {
lu_byte oldah = L->allowhook;
lu_mem oldt = g->GCthreshold;
L->allowhook = 0; /* stop debug hooks during GC tag method */
g->GCthreshold = 2*g->totalbytes; /* avoid GC steps */
- setobj2s(L, L->top, tm);
- setuvalue(L, L->top+1, udata);
L->top += 2;
+ setobj2s(L, L->top - 2, tm);
+ setuvalue(L, L->top - 1, udata);
luaD_call(L, L->top - 2, 0);
L->allowhook = oldah; /* restore hooks */
g->GCthreshold = oldt; /* restore threshold */
}
+ L->top--;
}
@@ -543,7 +551,7 @@ static void atomic (lua_State *L) {
udsize = luaC_separateudata(L, 0); /* separate userdata to be finalized */
marktmu(g); /* mark `preserved' userdata */
@ -1008,14 +977,6 @@
lua_Number d;
lua_Integer i;
@@ -104,6 +105,7 @@ static void callTMres (lua_State *L, Stk
res = restorestack(L, result);
L->top--;
setobjs2s(L, res, L->top);
+ setnilvalue(L, L->top);
}
@@ -384,6 +386,7 @@ void luaV_concat (lua_State *L, int tota
size_t l = tsvalue(top-i)->len;
memcpy(buffer+tl, svalue(top-i), l);
@ -1060,35 +1021,6 @@
sethvalue(L, &g, cl->env);
lua_assert(ttisstring(KBx(i)));
Protect(luaV_settable(L, &g, KBx(i), ra));
@@ -693,7 +696,7 @@ void luaV_execute (lua_State *L, int nex
}
OPCODE_TARGET(SETUPVAL) {
UpVal *uv = cl->upvals[GETARG_B(i)];
- setobj(L, uv->v, ra);
+ setobj(L, uv->v, luaV_ref(ra));
luaC_barrier(L, uv, ra);
continue;
}
@@ -856,7 +859,8 @@ void luaV_execute (lua_State *L, int nex
}
OPCODE_TARGET(TAILCALL) {
int b = GETARG_B(i);
- if (b != 0) L->top = ra+b; /* else previous instruction set top */
+ if (b != 0)
+ L->top = ra+b; /* else previous instruction set top */
L->savedpc = pc;
lua_assert(GETARG_C(i) - 1 == LUA_MULTRET);
switch (luaD_precall(L, ra, LUA_MULTRET)) {
@@ -870,7 +874,8 @@ void luaV_execute (lua_State *L, int nex
L->base = ci->base = ci->func + ((ci+1)->base - pfunc);
for (aux = 0; pfunc+aux < L->top; aux++) /* move frame down */
setobjs2s(L, func+aux, pfunc+aux);
- ci->top = L->top = func+aux; /* correct top */
+ ci->top = func+aux; /* correct top */
+ L->top = ci->top;
lua_assert(L->top == L->base + clvalue(func)->l.p->maxstacksize);
ci->savedpc = L->savedpc;
ci->tailcalls++; /* one more call lost */
@@ -895,7 +900,7 @@ void luaV_execute (lua_State *L, int nex
if (--nexeccalls == 0) /* was previous function running `here'? */
return; /* no: return */
@ -1102,7 +1034,7 @@
for (; n > 0; n--) {
TValue *val = ra+n;
setobj2t(L, luaH_setint(L, h, last--), val);
+ setnilvalue(L, val);
+ setnilvalue(L, val);
luaC_barriert(L, h, val);
}
continue;
@ -1191,7 +1123,7 @@
+#define setlvmtop(L, val) do { \
+ int __i; \
+ for (__i = L->top - val; __i-- > 0;) \
+ setnilvalue(L, L->top + __i); \
+ setnilvalue(L, val + __i); \
+ L->top = val; \
+} while (0)
+