add test

Author: ludviggunne

test/testnullpointer.cpp

@@ -145,6 +145,7 @@ class TestNullPointer : public TestFixture {
         TEST_CASE(nullpointer105); // #13861
         TEST_CASE(nullpointer106); // #13682
         TEST_CASE(nullpointer107); // #13682 (FP/FN cases around guards that depend on the pointer indirectly)
+        TEST_CASE(nullpointer108);
         TEST_CASE(nullpointer_addressOf); // address of
         TEST_CASE(nullpointerSwitch); // #2626
         TEST_CASE(nullpointer_cast); // #4692
@@ -3105,6 +3106,18 @@ class TestNullPointer : public TestFixture {
         ASSERT_EQUALS("", errout_str());
     }
 
+    void nullpointer108()
+    {
+        check("boost::asio::awaitable<int> test()\n"
+              "{\n"
+              "    const auto *s = getStr();\n"
+              "    if(!s) co_return int{1};\n"
+              "    std::print(\"{}\",*s);\n"
+              "    co_return int{9};\n"
+              "}\n");
+        ASSERT_EQUALS("", errout_str());
+    }
+
     void nullpointer_addressOf() { // address of
         check("void f() {\n"
               "  struct X *x = 0;\n"