Stores to constant addresses, unknown addresses, or to addresses
relative to registers other than BASE_REG will trash this area; see
- pv_area_store_would_trash. */
-struct pv_area *make_pv_area (int base_reg);
+ pv_area_store_would_trash.
+
+ To check whether a pointer refers to this area, only the low
+ ADDR_BIT bits will be compared. */
+struct pv_area *make_pv_area (int base_reg, int addr_bit);
/* Free AREA. */
void free_pv_area (struct pv_area *area);