switch (inf->type) {
case BLACKHOLE:
case CAF_BLACKHOLE:
+ goto no_slop;
+ // we already filled in the slop when we overwrote the thunk
+ // with BLACKHOLE, and also an evacuated BLACKHOLE is only the
+ // size of an IND.
case THUNK_SELECTOR:
sz = sizeofW(StgSelector) - sizeofW(StgThunkHeader);
break;
for (i = 0; i < sz; i++) {
((StgThunk *)p)->payload[i] = 0;
}
+no_slop:
+ ;
}
#endif /* CMINUSMINUS */
DEBUG_FILL_SLOP(p1); \
LDV_RECORD_DEAD_FILL_SLOP_DYNAMIC(p1); \
StgInd_indirectee(p1) = p2; \
- foreign "C" wb() []; \
+ prim %write_barrier() []; \
bd = Bdescr(p1); \
if (bdescr_gen_no(bd) != 0 :: CInt) { \
- foreign "C" recordMutableCap(p1 "ptr", \
- MyCapability() "ptr", \
- bdescr_gen_no(bd)) [R1]; \
+ recordMutableCap(p1, TO_W_(bdescr_gen_no(bd)), R1); \
SET_INFO(p1, stg_IND_OLDGEN_info); \
LDV_RECORD_CREATE(p1); \
TICK_UPD_OLD_IND(); \
and_then; \
}
#else
-#define updateWithIndirection(ind_info, p1, p2, and_then) \
- { \
- bdescr *bd; \
- \
- /* cas(p1, 0, &stg_WHITEHOLE_info); */ \
- ASSERT( (P_)p1 != (P_)p2 && !closure_IND(p1) ); \
- DEBUG_FILL_SLOP(p1); \
- LDV_RECORD_DEAD_FILL_SLOP_DYNAMIC(p1); \
- ((StgInd *)p1)->indirectee = p2; \
- wb(); \
- bd = Bdescr((P_)p1); \
- if (bd->gen_no != 0) { \
- recordMutableGenLock(p1, &generations[bd->gen_no]); \
- SET_INFO(p1, &stg_IND_OLDGEN_info); \
- TICK_UPD_OLD_IND(); \
- and_then; \
- } else { \
- SET_INFO(p1, ind_info); \
- LDV_RECORD_CREATE(p1); \
- TICK_UPD_NEW_IND(); \
- and_then; \
- } \
+#define updateWithIndirection(ind_info, p1, p2, and_then) \
+ { \
+ bdescr *bd; \
+ \
+ /* cas(p1, 0, &stg_WHITEHOLE_info); */ \
+ ASSERT( (P_)p1 != (P_)p2 && !closure_IND(p1) ); \
+ DEBUG_FILL_SLOP(p1); \
+ LDV_RECORD_DEAD_FILL_SLOP_DYNAMIC(p1); \
+ ((StgInd *)p1)->indirectee = p2; \
+ write_barrier(); \
+ bd = Bdescr((P_)p1); \
+ if (bd->gen_no != 0) { \
+ recordMutableGenLock(p1, &generations[bd->gen_no]); \
+ SET_INFO(p1, &stg_IND_OLDGEN_info); \
+ TICK_UPD_OLD_IND(); \
+ and_then; \
+ } else { \
+ SET_INFO(p1, ind_info); \
+ LDV_RECORD_CREATE(p1); \
+ TICK_UPD_NEW_IND(); \
+ and_then; \
+ } \
}
#endif