[PATCH] Add a testcase for already fixed PR c/80778

[Jakub Jelinek]

Hi!

This testcase has been already fixed on the trunk with r257620
aka PR84305 fix.  I've tested and committed as obvious following testcase so
that PR80778 can be closed.

2018-03-23  Jakub Jelinek  <ja...@redhat.com>

        PR c/80778
        * gcc.dg/lto/pr80778_0.c: New test.

--- gcc/testsuite/gcc.dg/lto/pr80778_0.c.jj     2018-03-23 11:42:03.210732409 
+0100
+++ gcc/testsuite/gcc.dg/lto/pr80778_0.c        2018-03-23 11:41:58.087734143 
+0100
@@ -0,0 +1,5 @@
+/* PR c/80778 */
+/* { dg-lto-do link } */
+/* { dg-require-effective-target alloca } */
+
+#include "../auto-type-1.c"

        Jakub