[PATCH 3/7] testsuite: require stack protector support in no-stack-protector-attr.C

The test carried two dg-do compile directives: one restricting it to x86
and, added later, one excluding only hppa.  DejaGnu honors the last one, so
the x86 restriction never had any effect and the test has run everywhere
since it was added, which is why hppa needed excluding at all.

Require fstack_protector instead, so the test runs wherever the feature
exists.  This fixes it on alpha, which does not support -fstack-protector
and warns that the option is unsupported.  The hppa exclusion becomes
redundant, as check_effective_target_fstack_protector already returns 0
there.

gcc/testsuite/ChangeLog:

	* g++.dg/no-stack-protector-attr.C: Remove the dead dg-do directive
	and the hppa exclusion, and require fstack_protector.
---
 gcc/testsuite/g++.dg/no-stack-protector-attr.C | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git ./gcc/testsuite/g++.dg/no-stack-protector-attr.C ./gcc/testsuite/g++.dg/no-stack-protector-attr.C
index 3314a94bd7b..a285c551795 100644
--- ./gcc/testsuite/g++.dg/no-stack-protector-attr.C
+++ ./gcc/testsuite/g++.dg/no-stack-protector-attr.C
@@ -1,11 +1,10 @@
 /* PR c/94722 */
 /* Test that stack protection is disabled via no_stack_protector attribute. */
 
-/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+/* { dg-do compile } */
+/* { dg-require-effective-target fstack_protector } */
 /* { dg-options "-O2 -fstack-protector-all" } */
 
-/* { dg-do compile { target { ! hppa*-*-* } } } */
-
 int __attribute__((no_stack_protector)) c()
 {
   int a;
-- 
2.54.0