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Drop obsolete shadow frame link stack.

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This commit is contained in:
Mike Pall
2010-02-18 03:19:46 +01:00
parent 265a24b978
commit 2b22b9e710
5 changed files with 38 additions and 47 deletions
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6
src/lj_asm.c
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@@ -3044,7 +3044,7 @@ static void asm_tail_sync(ASMState *as)
SnapShot *snap = &as->T->snap[as->T->nsnap-1]; /* Last snapshot. */
MSize n, nent = snap->nent;
SnapEntry *map = &as->T->snapmap[snap->mapofs];
SnapEntry *flinks = map + nent + 1;
SnapEntry *flinks = map + nent + snap->depth;
BCReg newbase = 0, topslot = 0;
checkmclim(as);
@@ -3102,11 +3102,11 @@ static void asm_tail_sync(ASMState *as)
if (!(sn & (SNAP_CONT|SNAP_FRAME)))
emit_movmroi(as, RID_BASE, ofs+4, irt_toitype(ir->t));
else if (s != 0) /* Do not overwrite link to previous frame. */
emit_movmroi(as, RID_BASE, ofs+4, (int32_t)(*flinks++));
emit_movmroi(as, RID_BASE, ofs+4, (int32_t)(*flinks--));
}
checkmclim(as);
}
lua_assert(map + nent + 1 + snap->depth == flinks);
lua_assert(map + nent == flinks);
}
/* Fixup the tail code. */