[PATCH 2/3] Force long double to be IBM 128-bit on PowerPC test, PR target/70117

[Michael Meissner]

[PATCH 2/3] Force long double to be IBM 128-bit on PowerPC test, PR target/70117.

This patch fixes the pr70117 test to use IBM 128-bit long double.

I have run tests on a little endian power9 system with 3 compilers.  There
were no regressions with these patches, and the two tests in the following
patches now work if the default long double is not IBM 128-bit:

    *	One compiler using the default IBM 128-bit format;
    *	One compiler using the IEEE 128-bit format; (and)
    *	One compiler using 64-bit long doubles.

I have also tested compilers on a big endian power8 system with a compiler
defaulting to power8 code generation and another with the default cpu
set.  There were no regressions.

Can I check this patch into the master branch?

gcc/testsuite/
2021-02-23  Michael Meissner  <meissner@linux.ibm.com>

	PR target/70117
	* gcc.target/powerpc/pr70117.c: Force the long double type to use
	the IBM 128-bit format.
---
 gcc/testsuite/gcc.target/powerpc/pr70117.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/gcc.target/powerpc/pr70117.c b/gcc/testsuite/gcc.target/powerpc/pr70117.c
index 3bbd2c595e0..8a5fad1dee0 100644
--- a/gcc/testsuite/gcc.target/powerpc/pr70117.c
+++ b/gcc/testsuite/gcc.target/powerpc/pr70117.c
@@ -1,5 +1,7 @@
-/* { dg-do run { target { powerpc*-*-linux* powerpc*-*-darwin* powerpc*-*-aix* rs6000-*-* } } } */
-/* { dg-options "-std=c99 -mlong-double-128 -O2" } */
+/* { dg-do run } */
+/* { dg-require-effective-target ppc_long_double_override_ibm128 } */
+/* { dg-options "-std=c99 -O2" } */
+/* { dg-add-options ppc_long_double_override_ibm128 } */
 
 #include <float.h>
 
-- 
2.22.0


-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.ibm.com, phone: +1 (978) 899-4797