1 files changed, 48 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/anon-struct-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/anon-struct-2.c
new file mode 100644
index 000000000..4bd2d0f33
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/anon-struct-2.c
@@ -0,0 +1,48 @@
+/* { dg-options "-std=gnu89" } */
+/* In GNU C mode, we recognize the anonymous struct/union extension,
+   but not Microsoft extensions.  */
+
+struct A { char a; };
+
+/* MS extension.  */
+struct B {
+  struct A;			/* { dg-warning "does not declare anything" } */
+  char b;
+};
+char testB[sizeof(struct B) == sizeof(struct A) ? 1 : -1];
+
+/* MS extension.  */
+struct C {
+  struct D { char d; };		/* { dg-warning "does not declare anything" } */
+  char c;
+};
+char testC[sizeof(struct C) == sizeof(struct A) ? 1 : -1];
+char testD[sizeof(struct D) == sizeof(struct A) ? 1 : -1];
+
+/* GNU extension.  */
+struct E {
+  struct { char z; };
+  char e;
+};
+char testE[sizeof(struct E) == 2 * sizeof(struct A) ? 1 : -1];
+
+/* MS extension.  */
+typedef struct A typedef_A;
+struct F {
+  typedef_A;			/* { dg-warning "does not declare anything" } */
+  char f;
+};
+char testF[sizeof(struct F) == sizeof(struct A) ? 1 : -1];
+
+/* Test that __extension__ does the right thing coming _from_ GNU C mode.  */
+__extension__ struct G {
+  struct { char z; };
+  char g;
+};
+char testG[sizeof(struct G) == 2 * sizeof(struct A) ? 1 : -1];
+
+struct H {
+  struct { char z; };
+  char h;
+};
+char testH[sizeof(struct H) == 2 * sizeof(struct A) ? 1 : -1];