diff --git a/test/testcondition.cpp b/test/testcondition.cpp
index d35474d91..3157e68dc 100644
--- a/test/testcondition.cpp
+++ b/test/testcondition.cpp
@@ -4448,6 +4448,15 @@ private:
               "           *n == 'A');\n"
               "}\n");
         ASSERT_EQUALS("", errout.str());
+
+        check("void f(std::istringstream& i) {\n" // #9327
+              "    std::string s;\n"
+              "    if (!(i >> s))\n"
+              "        return;\n"
+              "    if (!(i >> s))\n"
+              "        return;\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void alwaysTrueSymbolic()
diff --git a/test/testunusedvar.cpp b/test/testunusedvar.cpp
index cdd247163..af675bcfa 100644
--- a/test/testunusedvar.cpp
+++ b/test/testunusedvar.cpp
@@ -3506,14 +3506,20 @@ private:
         ASSERT_EQUALS("", errout.str());
     }
 
-    void localvar60() { // #10531
-        functionVariableUsage("void Scale(double scale) {\n"
+    void localvar60() {
+        functionVariableUsage("void Scale(double scale) {\n" // #10531
                               "    for (int i = 0; i < m_points.size(); ++i) {\n"
                               "        auto& p = m_points[i];\n"
                               "        p += scale;\n"
                               "    }\n"
                               "}");
         ASSERT_EQUALS("", errout.str());
+
+        functionVariableUsage("void foo(int c[]) {\n" // #10597
+                              "    int& cc = c[0];\n"
+                              "    cc &= ~0xff;\n"
+                              "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void localvar61() { // #9407