Short-circuit when parents are equal

Signed-off-by: Kyle Cripps <[email protected]>
p4lang · Jul 13, 2024 · 2e76c92 · 2e76c92
1 parent 37072bb
commit 2e76c92
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/frontends/p4/def_use.h b/frontends/p4/def_use.h
@@ -41,8 +41,9 @@ struct loc_t {
     const loc_t *parent;
     bool operator==(const loc_t &a) const {
         if (node != a.node) return false;
-        if (parent && a.parent) return *parent == *a.parent;
-        return parent == a.parent;
+        if (parent == a.parent) return true;
+        if (!parent || !a.parent) return false;
+        return *parent == *a.parent;
     }
     std::size_t hash() const;
 };