re PR lto/81406 (ICE in check_die, at dwarf2out.c:6185)

	PR lto/81406
	* gcc.dg/lto/pr81406_0.c: New test.

From-SVN: r255643

gcc/testsuite/ChangeLog

+2017-12-14  Jakub Jelinek  <jakub@redhat.com>
+
+	PR lto/81406
+	* gcc.dg/lto/pr81406_0.c: New test.
+
 2017-12-14  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/66974

gcc/testsuite/gcc.dg/lto/pr81406_0.c

+/* PR lto/81406 */
+/* { dg-lto-do link } */
+/* { dg-lto-options { { -O2 -g -flto } } } */
+/* { dg-extra-ld-options { -g -r -nostdlib } } */
+
+int a;
+int *foo (void);
+
+static inline int __attribute__ ((__artificial__))
+bar (void)
+{
+  if (a)
+    *foo () = 2;
+}
+
+void *
+baz (void)
+{
+  return (void *) bar;
+}