[PATCH, rs6000] Fix some test failures on older hardware

[Bill Schmidt]

Hi,

The two tests in this patch fail on POWER7 and older hardware because
the requisite __float128 library routines are not built there.  This
patch corrects the tests to require POWER8 or later hardware.

Tested on POWER7 powerpc64-unknown-linux-gnu and on POWER8
powerpc64le-unknown-linux-gnu.  Ok for trunk and for backport to
gcc-6-branch?

Thanks,
Bill


2016-07-29  Bill Schmidt  <wschm...@linux.vnet.ibm.com>

        * gcc.target/powerpc/divkc3-1.c: Require POWER8 hardware.
        * gcc.target/powerpc/mulkc3-1.c: Likewise.


Index: gcc/testsuite/gcc.target/powerpc/divkc3-1.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/divkc3-1.c (revision 238763)
+++ gcc/testsuite/gcc.target/powerpc/divkc3-1.c (working copy)
@@ -1,5 +1,4 @@
-/* { dg-do run { target { powerpc64*-*-* && vsx_hw } } } */
-/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-do run { target { powerpc64*-*-* && p8vector_hw } } } */
 /* { dg-options "-mfloat128 -mvsx" } */
 
 void abort ();
Index: gcc/testsuite/gcc.target/powerpc/mulkc3-1.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/mulkc3-1.c (revision 238763)
+++ gcc/testsuite/gcc.target/powerpc/mulkc3-1.c (working copy)
@@ -1,5 +1,4 @@
-/* { dg-do run { target { powerpc64*-*-* && vsx_hw } } } */
-/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-do run { target { powerpc64*-*-* && p8vector_hw } } } */
 /* { dg-options "-mfloat128 -mvsx" } */
 
 void abort ();