rs6000: Fix the vec-adde* testcases once more

David found the vec-adde{,c}-int128.c testcases fail on AIX.  Those
tests should only run on targets that have int128.

This also changes the non-int128 testcases to check for the hardware
they require.


gcc/testsuite/
	* gcc.target/powerpc/vec-adde-int128.c: Only run if int128 exists.
	* gcc.target/powerpc/vec-addec-int128.c: Ditto.
	* gcc.target/powerpc/vec-adde.c: Require vsx_hw, don't require a
	64-bit default target.
	* gcc.target/powerpc/vec-addec.c: Require p8vector_hw, don't require
	a 64-bit default target.

From-SVN: r245453

gcc/testsuite/ChangeLog

+2017-02-14  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* gcc.target/powerpc/vec-adde-int128.c: Only run if int128 exists.
+	* gcc.target/powerpc/vec-addec-int128.c: Ditto.
+	* gcc.target/powerpc/vec-adde.c: Require vsx_hw, don't require a
+	64-bit default target.
+	* gcc.target/powerpc/vec-addec.c: Require p8vector_hw, don't require
+	a 64-bit default target.
+
 2017-02-14  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/79481

gcc/testsuite/gcc.target/powerpc/vec-adde-int128.c

-/* { dg-do run { target { powerpc*-*-* && p8vector_hw } } } */
+/* { dg-do run { target { powerpc*-*-* && { p8vector_hw && int128 } } } } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
 /* { dg-options "-mcpu=power8 -O3" } */
 

gcc/testsuite/gcc.target/powerpc/vec-adde.c

-/* { dg-do run { target { powerpc64*-*-* } } } */
-/* { dg-require-effective-target powerpc_vsx_ok } */
+/* { dg-do run { target { powerpc*-*-* && vsx_hw } } } */
 /* { dg-options "-mvsx -O3" } */
 
 /* Test that the vec_adde builtin works as expected.  */

gcc/testsuite/gcc.target/powerpc/vec-addec-int128.c

-/* { dg-do run { target { powerpc*-*-* && p8vector_hw } } } */
+/* { dg-do run { target { powerpc*-*-* && { p8vector_hw && int128 } } } } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
 /* { dg-options "-mcpu=power8 -O3" } */
 

gcc/testsuite/gcc.target/powerpc/vec-addec.c

-/* { dg-do run { target { powerpc64*-*-* } } } */
-/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-do run { target { powerpc*-*-* && p8vector_hw } } } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
 /* { dg-options "-mcpu=power8 -O3" } */