pr71347.c: Put back XFAIL.

2017-03-31  Richard Biener  <rguenther@suse.de>
 
	* gcc.dg/tree-ssa/pr71347.c: Put back XFAIL.

From-SVN: r246611

gcc/testsuite/ChangeLog

+2017-03-31  Richard Biener  <rguenther@suse.de>
+ 
+	* gcc.dg/tree-ssa/pr71347.c: Put back XFAIL.
+
 2017-03-31  Jakub Jelinek  <jakub@redhat.com>
 
 	PR libstdc++/80251

gcc/testsuite/gcc.dg/tree-ssa/pr71347.c

@@ -14,4 +14,4 @@ void foo (void)
 }
 
 /* Load of X[i - i] can be omitted by reusing X[i] in previous iteration.  */
-/* { dg-final { scan-tree-dump-not ".* = MEM.*;" "optimized" } } */
+/* { dg-final { scan-tree-dump-not ".* = MEM.*;" "optimized" { xfail { ia64-*-* arm*-*-* m68k*-*-* } } } } */