From 7ecb1872e35ceba59b6949aa3942521e01920bd6 Mon Sep 17 00:00:00 2001
From: weiyu <weiyuluo1232@gmail.com>
Date: Fri, 9 Aug 2019 13:09:46 -0700
Subject: [PATCH] fix bug - 'backedge' in predicate.cc uninitialized

---
 funcnode.cc  | 8 +++-----
 funcnode.h   | 1 -
 predicate.cc | 3 ++-
 predicate.h  | 2 ++
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/funcnode.cc b/funcnode.cc
index d60fbe1c..7daf921d 100644
--- a/funcnode.cc
+++ b/funcnode.cc
@@ -7,8 +7,7 @@ FuncNode::FuncNode() :
 	func_inst_map(),
 	inst_list(),
 	entry_insts(),
-	thrd_read_map(),
-	predicate_tree_backedges()
+	thrd_read_map()
 {}
 
 /* Check whether FuncInst with the same type, position, and location
@@ -225,7 +224,6 @@ void FuncNode::update_predicate_tree(action_list_t * act_list, HashTable<ModelAc
 {
 	if (act_list == NULL || act_list->size() == 0)
 		return;
-
 /*
 	if (predicate_tree_initialized) {
 		return;
@@ -299,8 +297,8 @@ void FuncNode::update_predicate_tree(action_list_t * act_list, HashTable<ModelAc
 		it = it->getNext();
 	}
 
-	model_print("function %s\n", func_name);
-	print_predicate_tree();
+//	model_print("function %s\n", func_name);
+//	print_predicate_tree();
 }
 
 /* Given curr_pred and next_inst, find the branch following curr_pred that contains next_inst and the correct predicate
diff --git a/funcnode.h b/funcnode.h
index 62a3bc50..4fcbb940 100644
--- a/funcnode.h
+++ b/funcnode.h
@@ -62,7 +62,6 @@ private:
 
 	/* Store the values read by atomic read actions per memory location for each thread */
 	ModelVector<read_map_t *> thrd_read_map;
-	HashTable<FuncInst *, Predicate *, uintptr_t, 0, model_malloc, model_calloc, model_free> predicate_tree_backedges;
 };
 
 #endif /* __FUNCNODE_H__ */
diff --git a/predicate.cc b/predicate.cc
index 6b83d225..77f362da 100644
--- a/predicate.cc
+++ b/predicate.cc
@@ -5,7 +5,8 @@ Predicate::Predicate(FuncInst * func_inst, bool is_entry) :
 	entry_predicate(is_entry),
 	pred_expressions(),
 	children(),
-	parents()
+	parents(),
+	backedge(NULL)
 {}
 
 unsigned int pred_expr_hash(struct pred_expr * expr)
diff --git a/predicate.h b/predicate.h
index c4390f11..2f15a126 100644
--- a/predicate.h
+++ b/predicate.h
@@ -58,10 +58,12 @@ public:
 private:
 	FuncInst * func_inst;
 	bool entry_predicate;
+
 	/* may have multiple predicates */
 	PredExprSet pred_expressions;
 	ModelVector<Predicate *> children;
 	ModelVector<Predicate *> parents;
+
 	/* assume almost one back edge exists */
 	Predicate * backedge;
 };
-- 
2.34.1