Check if a Promise is both compatible *and* exclusive to a particular
thread. This allows ordering optimizations when we can guarantee that a
particular thread must fulfill the promise.
*/
bool Promise::is_compatible(const ModelAction *write) const
{
- return thread_is_available(write->get_tid());
+ return thread_is_available(write->get_tid()) && read->same_var(write);
+}
+
+/**
+ * @brief Check if a promise is compatible with a store and is exclusive to its
+ * thread
+ * @param write The store to check against
+ * @return True if we are compatible and exclusive; false otherwise
+ */
+bool Promise::is_compatible_exclusive(const ModelAction *write) const
+{
+ return get_num_available_threads() == 1 && is_compatible(write);
}
const ModelAction * get_write() const { return write; }
int get_num_available_threads() const { return num_available_threads; }
bool is_compatible(const ModelAction *write) const;
+ bool is_compatible_exclusive(const ModelAction *write) const;
void print() const;