--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.c-torture/compile/pr26840.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,42 @@
+extern int f1 (void **);
+extern void f2 (void *);
+
+struct s
+{
+  unsigned char field1;
+  int field2;
+};
+
+static inline struct s *
+get_globals (void)
+{
+  struct s * r;
+  void * rr;
+
+  if (f1 (&rr))
+    return 0;
+  r = rr;
+  if (! r)
+    {
+      extern struct s t;
+      r = &t;
+    }
+  r->field1 = 1;
+  return r;
+}
+
+void
+atexit_common (const void *dso)
+{
+  struct s *g = get_globals ();
+
+  if (! g)
+    return;
+  if (g->field1)
+    {
+      g->field2 = 0;
+      f2 (g);
+    }
+  else
+    f2 (g);
+}