testsuite: Fix up ext-floating15.C tests on powerpc64-linux [PR109278]

I've noticed this test FAILs on powerpc64-linux, with
FAIL: g++.dg/cpp23/ext-floating15.C  -std=gnu++98 (test for excess errors)
Excess errors:
/home/jakub/gcc/gcc/testsuite/g++.dg/cpp23/ext-floating15.C:8:5: error: '_Float128' is not supported on this target
/home/jakub/gcc/gcc/testsuite/g++.dg/cpp23/ext-floating15.C:8:5: error: '_Float128' is not supported on this target
/home/jakub/gcc/gcc/testsuite/g++.dg/cpp23/ext-floating15.C:8:1: error: variable or field 'bar' declared void
/home/jakub/gcc/gcc/testsuite/g++.dg/cpp23/ext-floating15.C:8:5: error: '_Float128' is not supported on this target
/home/jakub/gcc/gcc/testsuite/g++.dg/cpp23/ext-floating15.C:8:6: error: expected primary-expression before '_Float128'
and similarly other std versions.
powerpc64-linux is float128 target, but needs to add some options for it.

Fixed by adding them.

2023-04-25  Jakub Jelinek  <jakub@redhat.com>

	PR c++/109278
	* g++.dg/cpp23/ext-floating15.C: Add dg-add-options float128.

diff --git a/gcc/testsuite/g++.dg/cpp23/ext-floating15.C b/gcc/testsuite/g++.dg/cpp23/ext-floating15.C
index 316dd5abacdfad5e8c4420d67b4199dbf87089e5..6d7dc6ad682bb429b530deac5a3c0417fd1a75e7 100644 (file)
--- a/gcc/testsuite/g++.dg/cpp23/ext-floating15.C
+++ b/gcc/testsuite/g++.dg/cpp23/ext-floating15.C
@@ -1,6 +1,7 @@
 // PR c++/109278
 // { dg-do compile { target float128 } }
 // { dg-options "-w" }
+// { dg-add-options float128 }
 
 void foo (long double);        // { dg-bogus "initializing argument 1 of" }