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Reset the hotcount table after a JIT off to on transition.

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This commit is contained in:
Mike Pall
2010-02-04 20:40:00 +01:00
parent 7256690364
commit 5d2690c608
3 changed files with 18 additions and 15 deletions
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16
src/lj_dispatch.c
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@@ -34,6 +34,18 @@ void lj_dispatch_init(GG_State *GG)
disp[BC_LOOP] = disp[BC_ILOOP];
}
#if LJ_HASJIT
/* Initialize hotcount table. */
void lj_dispatch_init_hotcount(global_State *g)
{
HotCount start = (HotCount)G2J(g)->param[JIT_P_hotloop];
HotCount *hotcount = G2GG(g)->hotcount;
uint32_t i;
for (i = 0; i < HOTCOUNT_SIZE; i++)
hotcount[i] = start;
}
#endif
/* Update dispatch table depending on various flags. */
void lj_dispatch_update(global_State *g)
{
@@ -77,6 +89,10 @@ void lj_dispatch_update(global_State *g)
disp[BC_ITERL] = f_iterl;
disp[BC_LOOP] = f_loop;
}
#if LJ_HASJIT
if ((mode & 1) && !(oldmode & 1)) /* JIT off to on transition. */
lj_dispatch_init_hotcount(g);
#endif
}
}