avx512f-vbroadcastf64x4-2.c: Fix the uninitialized variable problem.

gcc/testsuite/
	* gcc.target/i386/avx512f-vbroadcastf64x4-2.c: Fix the uninitialized
	variable problem.

From-SVN: r213096

gcc/testsuite/ChangeLog

+2014-07-27  Petr Murzin  <petr.murzin@intel.com>
+
+	* gcc.target/i386/avx512f-vbroadcastf64x4-2.c: Fix the uninitialized
+	variable problem.
+
 2014-07-27  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	PR rtl-optimization/61926

gcc/testsuite/gcc.target/i386/avx512f-vbroadcastf64x4-2.c

@@ -29,7 +29,7 @@ TEST (void)
   double res_ref[SIZE];
 
   sign = -1;
-  for (i = 0; i < 2; i++)
+  for (i = 0; i < 4; i++)
     {
       src.a[i] = 34.67 * i * sign;
       sign = sign * -1;