[testsuite] Require et alloca for pr82210.c

2018-02-22  Tom de Vries  <tom@codesourcery.com>

	* gcc.c-torture/execute/pr82210.c: Require effective target alloca.

From-SVN: r257898

gcc/testsuite/ChangeLog

+2018-02-22  Tom de Vries  <tom@codesourcery.com>
+
+	* gcc.c-torture/execute/pr82210.c: Require effective target alloca.
+
 2018-02-22  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/77655

gcc/testsuite/gcc.c-torture/execute/pr82210.c

 /* PR c/82210 */
+/* { dg-require-effective-target alloca } */
 
 void
 foo (int size)