1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/20021006-1.c b/gcc/testsuite/gcc.dg/20021006-1.c
new file mode 100644
index 000000000..63cc8a5af
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/20021006-1.c
@@ -0,0 +1,27 @@
+/* PR target/7559
+   This testcase was miscompiled on x86-64 due to wrong access to the struct
+   members.  */
+
+extern void abort();
+
+struct A {
+  long x;
+};
+
+struct R {
+  struct A a, b;
+};
+
+struct R R = {
+  {100}, {200}
+};
+
+void f(struct R r) {
+  if (r.a.x != R.a.x || r.b.x != R.b.x)
+    abort();
+}
+
+int main() {
+  f(R);
+  return 0;
+}