1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/long-long-cst1.c b/gcc/testsuite/gcc.dg/long-long-cst1.c
new file mode 100644
index 000000000..7c60648d2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/long-long-cst1.c
@@ -0,0 +1,18 @@
+/* PR middle-end/27724 */
+/* { dg-do run } */
+/* { dg-options "" } */
+
+extern void abort();
+
+struct st{
+  int _mark;
+};
+unsigned long long t = ((int)(__SIZE_TYPE__)&(((struct st*)16)->_mark) - 32);
+
+int main()
+{
+  if (t != (unsigned long long)(int)-16)
+    abort ();
+  return 0;
+}
+