extwarn about decls intermixed with code in c89 mode.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41477 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 19 insertions, 0 deletions

diff --git a/test/Sema/c89.c b/test/Sema/c89.c
new file mode 100644
index 0000000000..57085db644
--- /dev/null
+++ b/test/Sema/c89.c
@@ -0,0 +1,19 @@
+/* RUN: clang %s -std=c89 -pedantic -parse-ast-check
+ */
+void foo() {
+  {
+    int i;
+    i = i + 1;
+    int j;          /* expected-warning {{mixing declarations and code}} */
+  }
+  {
+    __extension__ int i;
+    i = i + 1;
+    int j;          /* expected-warning {{mixing declarations and code}} */
+  }
+  {
+    int i;
+    i = i + 1;
+    __extension__ int j; /* expected-warning {{mixing declarations and code}} */
+  }
+}