* - Hp += n ==> Hp_adj(n)
* - R1.i ==> R1 (similarly for R1.w, R1.cl etc.)
* - You need to explicitly dereference variables; eg.
- * context_switch ==> CInt[context_switch]
+ * alloc_blocks ==> CInt[alloc_blocks]
* - convert all word offsets into byte offsets:
* - e ==> WDS(e)
* - sizeofW(StgFoo) ==> SIZEOF_StgFoo
#endif
/*
- * The RTS must UNTAG a pointer before dereferencing it.
- * The use of UNTAG follows the following rules of thumb:
- *
- * - Any pointer might be tagged.
- * - Except the pointers that are passed in R1 to RTS functions.
- * - R1 is also untagged when entering constructor code.
- *
- * TODO:
- *
- * - Remove redundancies of tagging and untagging in code generation.
- * - Optimize getTag or dataToTag# ?
- *
+ * The RTS must sometimes UNTAG a pointer before dereferencing it.
+ * See the wiki page Commentary/Rts/HaskellExecution/PointerTagging
*/
#define TAG_MASK ((1 << TAG_BITS) - 1)
#define UNTAG(p) (p & ~TAG_MASK)
#define END_TSO_QUEUE stg_END_TSO_QUEUE_closure
#define END_INVARIANT_CHECK_QUEUE stg_END_INVARIANT_CHECK_QUEUE_closure
-#define dirtyTSO(tso) \
- StgTSO_flags(tso) = StgTSO_flags(tso) | TSO_DIRTY::I32;
-
#define recordMutableCap(p, gen, regs) \
W_ __bd; \
W_ mut_list; \