1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/torture/pr45843.C b/gcc/testsuite/g++.dg/torture/pr45843.C
new file mode 100644
index 000000000..f77b8cb01
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr45843.C
@@ -0,0 +1,28 @@
+// PR target/45843
+// { dg-do run }
+
+#include <stdarg.h>
+
+extern "C" void abort ();
+struct S { struct T { } a[14]; char b; };
+struct S arg, s;
+
+void
+foo (int z, ...)
+{
+  char c;
+  va_list ap;
+  va_start (ap, z);
+  c = 'a';
+  arg = va_arg (ap, struct S);
+  if (c != 'a')
+    abort ();
+  va_end (ap);
+}
+
+int
+main ()
+{
+  foo (1, s);
+  return 0;
+}