1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr45750.c b/gcc/testsuite/gcc.dg/pr45750.c
new file mode 100644
index 000000000..22c471b70
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr45750.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-O" } */
+
+struct S
+{
+  int i;
+};
+
+int invalid[] = 0; /* { dg-error "invalid initializer" } */
+
+void foo (void)
+{
+  if (((struct S *)undeclared)->i); /* { dg-error "undeclared" } */
+}
+
+/* { dg-message "reported only once" "" { target *-*-* } 13 } */