1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr27799.c b/gcc/testsuite/gcc.dg/tree-ssa/pr27799.c
new file mode 100644
index 000000000..de09a40e0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr27799.c
@@ -0,0 +1,26 @@
+/* { dg-do link } */
+/* { dg-options "-O2" } */
+
+struct X { double m; int x; };
+struct Y { int y; short d; };
+struct YY { int y; short d; char c; };
+
+extern void link_error (void);
+
+int foo(struct X *x,  struct Y *y)
+{
+  x->x =  0;
+  y->y =  1;
+  if (x->x != 0)
+    link_error ();
+}
+
+int foo_no(struct X *x,  struct YY *y)
+{
+  x->x =  0;
+  y->y =  1;
+  if (x->x != 0)
+    link_error ();
+}
+
+int main() {}