1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/attr-nest.c b/gcc/testsuite/gcc.dg/attr-nest.c
new file mode 100644
index 000000000..16a79c6e7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/attr-nest.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+
+#define ATTR_PRINTF __attribute__ ((format (printf, 1, 2)))
+#define ATTR_USED __attribute__ ((used))
+
+void bar (int, ...);
+
+/* gcc would segfault on the nested attribute.  */
+void foo (void)
+{
+  bar (0, (void (*ATTR_PRINTF) (const char *, ...)) 0);
+}
+
+/* For consistency, unnamed decls should give the same warnings as
+   named ones.  */
+void proto1 (int (*ATTR_USED) (void)); /* { dg-warning "attribute ignored" } */
+void proto2 (int (*ATTR_USED bar) (void)); /* { dg-warning "attribute ignored" } */