rs6000: p8vector-builtin-8.c test requires int128

For 32-bit targets p8vector_ok does not imply we have int128.


2015-10-28  Segher Boessenkool  <segher@kernel.crashing.org>

gcc/testsuite/
	* gcc.target/powerpc/p8vector-builtin-8.c: Add "target int128".

From-SVN: r229474

gcc/testsuite/ChangeLog

 2015-10-28  Segher Boessenkool  <segher@kernel.crashing.org>
 
+	* gcc.target/powerpc/p8vector-builtin-8.c: Add "target int128".
+
+2015-10-28  Segher Boessenkool  <segher@kernel.crashing.org>
+
 	* gcc.target/powerpc/vsx-builtin-2.c: Allow vmadd and vnmsub as well
 	as xvmadd and xvnmsub.
 	* gcc.target/powerpc/vsx-vector-2.c: Allow vmadd as well as xvmadd.

gcc/testsuite/gcc.target/powerpc/p8vector-builtin-8.c

-/* { dg-do compile } */
+/* { dg-do compile { target int128 } } */
 /* { dg-require-effective-target powerpc_p8vector_ok } */
 /* { dg-options "-mpower8-vector -O2" } */