/**
* @brief Register the ModelHistory and ModelExecution engine
*/
-void NewFuzzer::register_engine(ModelHistory * history, ModelExecution *execution)
+void NewFuzzer::register_engine(ModelExecution *execution)
{
- this->history = history;
+ this->history = model->get_history();
this->execution = execution;
}
if (curr_pred != NULL) {
Predicate * selected_branch = NULL;
- if (check_store_visibility(curr_pred, read_inst, inst_act_map, rf_set))
+ if (check_branch_inst(curr_pred, read_inst, inst_act_map, rf_set))
selected_branch = selectBranch(tid, curr_pred, read_inst);
else {
// no child of curr_pred matches read_inst, check back edges
while (it->hasNext()) {
curr_pred = it->next();
- if (check_store_visibility(curr_pred, read_inst, inst_act_map, rf_set)) {
+ if (check_branch_inst(curr_pred, read_inst, inst_act_map, rf_set)) {
selected_branch = selectBranch(tid, curr_pred, read_inst);
break;
}
// The chosen branch fails, reselect new branches
while ( rf_set->size() == 0 ) {
Predicate * selected_branch = get_selected_child_branch(tid);
+ FuncNode * func_node = history->get_curr_func_node(tid);
+
+ // Add failed predicate to NewFuzzer and FuncNode
failed_predicates.put(selected_branch, true);
+ func_node->add_failed_predicate(selected_branch);
+ selected_branch->incr_fail_count();
//model_print("the %d read action of thread %d at %p is unsuccessful\n", read->get_seq_number(), read_thread->get_id(), read->get_location());
SnapVector<ModelAction *> * pruned_writes = thrd_pruned_writes[thread_id];
- for (uint i = 0; i < pruned_writes->size(); i++) {
+ for (uint i = 0;i < pruned_writes->size();i++) {
rf_set->push_back( (*pruned_writes)[i] );
}
FuncInst * read_inst = thrd_last_func_inst[thread_id];
selected_branch = selectBranch(tid, curr_pred, read_inst);
- FuncNode * func_node = history->get_curr_func_node(tid);
inst_act_map_t * inst_act_map = func_node->get_inst_act_map(tid);
prune_writes(tid, selected_branch, rf_set, inst_act_map);
return random_index;
}
-/* For children of curr_pred that matches read_inst.
- * If any store in rf_set satisfies the a child's predicate,
- * increment the store visibility count for it.
- *
+/* Check if children of curr_pred match read_inst.
* @return False if no child matches read_inst
*/
-bool NewFuzzer::check_store_visibility(Predicate * curr_pred, FuncInst * read_inst,
-inst_act_map_t * inst_act_map, SnapVector<ModelAction *> * rf_set)
+bool NewFuzzer::check_branch_inst(Predicate * curr_pred, FuncInst * read_inst,
+ inst_act_map_t * inst_act_map, SnapVector<ModelAction *> * rf_set)
{
available_branches_tmp_storage.clear();
/* The children predicates may have different FuncInsts */
if (branch->get_func_inst() == read_inst) {
any_child_match = true;
+ branch->incr_total_checking_count();
available_branches_tmp_storage.push_back(branch);
}
}
double total_weight = 0;
SnapVector<double> weights;
- for (uint i = 0; i < branches->size(); i++) {
+ for (uint i = 0;i < branches->size();i++) {
Predicate * branch = (*branches)[i];
double weight = branch->get_weight();
total_weight += weight;
double prob_sum = 0;
int index = 0;
- for (uint i = 0; i < weights.size(); i++) {
+ for (uint i = 0;i < weights.size();i++) {
index = i;
prob_sum += (double) (weights[i] / total_weight);
if (prob_sum > prob) {
* @return true if rf_set is pruned
*/
bool NewFuzzer::prune_writes(thread_id_t tid, Predicate * pred,
-SnapVector<ModelAction *> * rf_set, inst_act_map_t * inst_act_map)
+ SnapVector<ModelAction *> * rf_set, inst_act_map_t * inst_act_map)
{
if (pred == NULL)
return false;
}
bool NewFuzzer::check_predicate_expressions(PredExprSet * pred_expressions,
-inst_act_map_t * inst_act_map, uint64_t write_val, bool * no_predicate)
+ inst_act_map_t * inst_act_map, uint64_t write_val, bool * no_predicate)
{
bool satisfy_predicate = true;
bool equality;
switch (expression->token) {
- case NOPREDICATE:
- *no_predicate = true;
- break;
- case EQUALITY:
- FuncInst * to_be_compared;
- ModelAction * last_act;
- uint64_t last_read;
-
- to_be_compared = expression->func_inst;
- last_act = inst_act_map->get(to_be_compared);
- last_read = last_act->get_reads_from_value();
-
- equality = (write_val == last_read);
- if (equality != expression->value)
- satisfy_predicate = false;
- break;
- case NULLITY:
- // TODO: implement likely to be null
- equality = ((void*) (write_val & 0xffffffff) == NULL);
- if (equality != expression->value)
- satisfy_predicate = false;
- break;
- default:
- model_print("unknown predicate token\n");
- break;
+ case NOPREDICATE:
+ *no_predicate = true;
+ break;
+ case EQUALITY:
+ FuncInst * to_be_compared;
+ ModelAction * last_act;
+ uint64_t last_read;
+
+ to_be_compared = expression->func_inst;
+ last_act = inst_act_map->get(to_be_compared);
+ last_read = last_act->get_reads_from_value();
+
+ equality = (write_val == last_read);
+ if (equality != expression->value)
+ satisfy_predicate = false;
+ break;
+ case NULLITY:
+ // TODO: implement likely to be null
+ equality = ((void*) (write_val & 0xffffffff) == NULL);
+ if (equality != expression->value)
+ satisfy_predicate = false;
+ break;
+ default:
+ model_print("unknown predicate token\n");
+ break;
}
if (!satisfy_predicate)
projects / c11tester.git / blobdiff