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| author | Mike Pall <mike> | 2021-05-29 15:31:13 +0200 |
|---|---|---|
| committer | Mike Pall <mike> | 2021-05-29 15:31:13 +0200 |
| commit | 0e53a314d7910898e1ea5ba90385d43e8a6c5e57 (patch) | |
| tree | 6a07a515e59477c5dade5b8bacc5da2298aab06e /src | |
| parent | 2801500a26084491ae035170cad4700513790890 (diff) | |
| download | luajit2-0e53a314d7910898e1ea5ba90385d43e8a6c5e57.tar.gz | |
Fix use-def analysis for vararg functions.
Reported by Shmuel Zeigerman.
Diffstat (limited to 'src')
| -rw-r--r-- | src/lj_snap.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/lj_snap.c b/src/lj_snap.c index 0c5e8e90..eb14058e 100644 --- a/src/lj_snap.c +++ b/src/lj_snap.c @@ -271,8 +271,10 @@ static BCReg snap_usedef(jit_State *J, uint8_t *udf, void lj_snap_purge(jit_State *J) { uint8_t udf[SNAP_USEDEF_SLOTS]; - BCReg maxslot = J->maxslot; - BCReg s = snap_usedef(J, udf, J->pc, maxslot); + BCReg s, maxslot = J->maxslot; + if (bc_op(*J->pc) == BC_FUNCV && maxslot > J->pt->numparams) + maxslot = J->pt->numparams; + s = snap_usedef(J, udf, J->pc, maxslot); for (; s < maxslot; s++) if (udf[s] != 0) J->base[s] = 0; /* Purge dead slots. */ |