[PATCH, rs6000] Clean up powerpc __float128 tests for older hardware

[Bill Schmidt]

Hi,

On POWER7 and earlier hardware, -mvsx is not on by default, causing the new
tests for __float128 builtins to fail.  This patch makes the dependency on VSX
hardware explicit in the tests.

Tested on powerpc64-unknown-linux-gnu on POWER7.  Ok for trunk, and for later
backport to 6.2?

Thanks,
Bill


2016-06-28  Bill Schmidt  <wschm...@linux.vnet.ibm.com>

        * gcc.target/powerpc/abs128-1.c: Require VSX.
        * gcc.target/powerpc/copysign128-1.c: Likewise.
        * gcc.target/powerpc/inf128-1.c: Likewise.
        * gcc.target/powerpc/nan128-1.c: Likewise.


Index: gcc/testsuite/gcc.target/powerpc/abs128-1.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/abs128-1.c (revision 237802)
+++ gcc/testsuite/gcc.target/powerpc/abs128-1.c (working copy)
@@ -1,5 +1,5 @@
-/* { dg-do run { target { powerpc64*-*-* && vmx_hw } } } */
-/* { dg-options "-mfloat128" } */
+/* { dg-do run { target { powerpc64*-*-* && vsx_hw } } } */
+/* { dg-options "-mfloat128 -mvsx" } */
 
 void abort ();
 
Index: gcc/testsuite/gcc.target/powerpc/copysign128-1.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/copysign128-1.c    (revision 237802)
+++ gcc/testsuite/gcc.target/powerpc/copysign128-1.c    (working copy)
@@ -1,5 +1,5 @@
-/* { dg-do run { target { powerpc64*-*-* && vmx_hw } } } */
-/* { dg-options "-mfloat128" } */
+/* { dg-do run { target { powerpc64*-*-* && vsx_hw } } } */
+/* { dg-options "-mfloat128 -mvsx" } */
 
 void abort ();
 
Index: gcc/testsuite/gcc.target/powerpc/inf128-1.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/inf128-1.c (revision 237802)
+++ gcc/testsuite/gcc.target/powerpc/inf128-1.c (working copy)
@@ -1,5 +1,5 @@
-/* { dg-do run { target { powerpc64*-*-* && vmx_hw } } } */
-/* { dg-options "-mfloat128" } */
+/* { dg-do run { target { powerpc64*-*-* && vsx_hw } } } */
+/* { dg-options "-mfloat128 -mvsx" } */
 
 void abort ();
 
Index: gcc/testsuite/gcc.target/powerpc/nan128-1.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/nan128-1.c (revision 237802)
+++ gcc/testsuite/gcc.target/powerpc/nan128-1.c (working copy)
@@ -1,5 +1,5 @@
-/* { dg-do run { target { powerpc64*-*-* && vmx_hw } } } */
-/* { dg-options "-mfloat128" } */
+/* { dg-do run { target { powerpc64*-*-* && vsx_hw } } } */
+/* { dg-options "-mfloat128 -mvsx" } */
 
 #include <stdio.h>