1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/m-un-2.c b/gcc/testsuite/gcc.dg/m-un-2.c
new file mode 100644
index 000000000..0d280bb57
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/m-un-2.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-options "-W -Wall" } */
+
+typedef __SIZE_TYPE__ size_t;
+extern void* malloc (size_t);
+extern void free (void*);
+extern void* realloc (void*, size_t);
+
+struct vtable {
+  void* (* _malloc) (size_t);
+  void (* _free) (void*);
+  void* (* _realloc) (void*, size_t);
+};
+
+struct vtable mtable = {
+  malloc,
+  free
+}; /* { dg-warning "missing initializer" "warning regression" { target *-*-* } {18} } */
+   /* { dg-warning "initialization for 'mtable._realloc'" "warning regression 2" { target *-*-* } {18} } */
+
+/* With designated initializers, we assume you meant to leave out the
+   initialization of any blank fields.  */
+struct vtable mtable2 = {
+  ._malloc = malloc,
+  ._realloc = realloc
+};
+
+struct vtable mtable3 = {
+  ._free = free,
+  ._malloc = malloc,
+  ._realloc = realloc
+};