Fix loc_t operator< when parent is nullptr (#4798)

Signed-off-by: Kyle Cripps <[email protected]>
p4lang · Jul 12, 2024 · a258b7e · a258b7e
1 parent f24aacc
commit a258b7e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/midend/def_use.h b/midend/def_use.h
@@ -66,7 +66,7 @@ class ComputeDefUse : public Inspector,
         const loc_t *parent;
         bool operator<(const loc_t &a) const {
             if (node != a.node) return node->id < a.node->id;
-            if (!a.parent) return parent != nullptr;
+            if (!parent || !a.parent) return parent != nullptr;
             return *parent < *a.parent;
         }
         template <class T>