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| author | Mike Pall <mike> | 2010-04-21 01:45:58 +0200 |
|---|---|---|
| committer | Mike Pall <mike> | 2010-04-21 01:45:58 +0200 |
| commit | ab45481199e9c9dd3efec922647bcec122504bcb (patch) | |
| tree | 0484341edff50a0afe98133ad66fb6a59915996a /src/lj_gc.h | |
| parent | d8cb69ed076c3444258f63314662451c9d117cae (diff) | |
| download | luajit2-ab45481199e9c9dd3efec922647bcec122504bcb.tar.gz | |
No longer let the GC replace dead keys with the LJ_TDEADKEY tag.
Important: this changes the semantics of the write barrier!
Carefully read the big comment block in lj_obj.h
This helps HREFK key slot specialization and allows safely hoisting
HREF/HREFK across GC steps, too (fix for a barely reproducible bug).
Dead keys are only removed during a table resize (as before).
Diffstat (limited to 'src/lj_gc.h')
| -rw-r--r-- | src/lj_gc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lj_gc.h b/src/lj_gc.h index 7279b93c..3d213eb3 100644 --- a/src/lj_gc.h +++ b/src/lj_gc.h @@ -69,6 +69,8 @@ LJ_FUNC void lj_gc_barriertrace(global_State *g, void *T); #endif /* Barrier for stores to table objects. TValue and GCobj variant. */ +#define lj_gc_anybarriert(L, t) \ + { if (isblack(obj2gco(t))) lj_gc_barrierback(G(L), (t)); } #define lj_gc_barriert(L, t, tv) \ { if (tviswhite(tv) && isblack(obj2gco(t))) \ lj_gc_barrierback(G(L), (t)); } |