* gcc.dg/tree-ssa/attr-alias.c: Skip if no weak support.

From-SVN: r265624

gcc/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2018-10-30  Paul Koning  <ni1d@arrl.net>
+
+	* gcc.dg/tree-ssa/attr-alias.c: Skip if no weak support.
+
 2018-10-30  Michael Ploujnikov  <michael.ploujnikov@oracle.com>
 
 	* gcc.dg/tree-prof/cold_partition_label.c: Update for cold

gcc/testsuite/gcc.dg/tree-ssa/attr-alias.c

@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-require-alias "" } */
+/* { dg-require-weak "" } */
 /* { dg-options "-O2 -fdump-tree-optimized -std=gnu89" } */
 void abort (void);
 __attribute__ ((weak))