re PR c++/79781 (ICE on valid C++ code with -std=c++14 (in assemble_integer, at varasm.c:2733))

	PR c++/79781
	* g++.dg/ext/goto1.C: New test.

From-SVN: r272527

gcc/testsuite/ChangeLog

+2019-06-20  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/79781
+	* g++.dg/ext/goto1.C: New test.
+
 2019-06-20  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/77632

gcc/testsuite/g++.dg/ext/goto1.C

+// PR c++/79781
+// { dg-do compile { target int128 } }
+// { dg-options "" }
+
+void c() {
+  static __int128_t d = (long)&&a - (long)&&b;
+a:
+b:;
+}