1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wstring-literal-comparison-1.c b/gcc/testsuite/gcc.dg/Wstring-literal-comparison-1.c
new file mode 100644
index 000000000..97e317644
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstring-literal-comparison-1.c
@@ -0,0 +1,29 @@
+/* PR c/7776 */
+/* { dg-do compile } */
+/* { dg-options "-Waddress" } */
+
+int test1(char *ptr)
+{
+  return ptr == "foo";  /* { dg-warning "comparison with string" } */
+}
+
+int test2()
+{
+  return "foo" != (const char*)0;
+}
+
+int test3()
+{
+  return "foo" == (const char*)0;
+}
+
+int test4()
+{
+  return (const char*)0 != "foo";
+}
+
+int test5()
+{
+  return (const char*)0 == "foo";
+}
+