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avoid local "pc" in interpreter loop (tricky optimization with no real gain)

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Roberto Ierusalimschy
2006-09-19 10:57:50 -03:00
parent d513c3c66b
commit d1ef7e0ec6
4 changed files with 48 additions and 51 deletions
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9
ldo.c
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@@ -1,5 +1,5 @@
/*
** $Id: ldo.c,v 2.41 2006/09/11 12:44:56 roberto Exp roberto $
** $Id: ldo.c,v 2.42 2006/09/11 14:07:24 roberto Exp roberto $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@@ -346,8 +346,11 @@ int luaD_poscall (lua_State *L, StkId firstResult) {
StkId res;
int wanted, i;
CallInfo *ci;
if (L->hookmask & LUA_MASKRET)
firstResult = callrethooks(L, firstResult);
if (L->hookmask & (LUA_MASKRET | LUA_MASKLINE)) {
if (L->hookmask & LUA_MASKRET)
firstResult = callrethooks(L, firstResult);
L->oldpc = (L->ci - 1)->savedpc; /* set 'oldpc' for returning function */
}
ci = L->ci--;
res = ci->func; /* res == final position of 1st result */
wanted = ci->nresults;