1 files changed, 20 insertions, 0 deletions
diff --git a/clang/test/Parser/extension.c b/clang/test/Parser/extension.c
new file mode 100644
index 0000000..fd4cf80
--- /dev/null
+++ b/clang/test/Parser/extension.c
@@ -0,0 +1,20 @@
+/* RUN: %clang_cc1 %s -fsyntax-only -pedantic -verify -std=c89
+ */
+
+/* Top level extension marker. */
+
+__extension__ typedef struct
+{
+    long long int quot; 
+    long long int rem; 
+} lldiv_t;
+
+
+/* Decl/expr __extension__ marker. */
+void bar() {
+  __extension__ int i;
+  int j;
+  __extension__ (j = 10LL);
+  __extension__ j = 10LL; /* expected-warning {{'long long' is an extension}} */
+}
+