vector-shuffle1.c (f): Pass vectors indirectly to avoid warnings.

	* gcc.dg/torture/vector-shuffle1.c (f): Pass vectors indirectly
	to avoid warnings.
	(main): Adjust caller.

From-SVN: r190302

gcc/testsuite/ChangeLog

+2012-08-10  Jakub Jelinek  <jakub@redhat.com>
+
+	* gcc.dg/torture/vector-shuffle1.c (f): Pass vectors indirectly
+	to avoid warnings.
+	(main): Adjust caller.
+
 2012-08-10  Richard Guenther  <rguenther@suse.de>
 
 	* gcc.dg/matrix/*.c: Adjust and move ...

gcc/testsuite/gcc.dg/torture/vector-shuffle1.c

@@ -5,15 +5,16 @@ extern void abort (void);
 
 typedef int v2si __attribute__((vector_size(2*sizeof(int))));
 
-v2si f(v2si x)
+void f(v2si *x)
 {
   /* This requires canonicalization of the mask to { 1, 0 }.  */
-  return __builtin_shuffle(x,x, (v2si) { 5, 0 });
+  *x = __builtin_shuffle(*x, *x, (v2si) { 5, 0 });
 }
 
 int main()
 {
-  v2si y = f((v2si) { 1, 2 });
+  v2si y = { 1, 2 };
+  f(&y);
   if (y[0] != 2 || y[1] != 1)
     abort ();
   return 0;