testsuite: Add tls runtime directives to decomp18.C [PR122983]

I haven't added the needed dg- directives to decomp18.C test
which uses thread_local and is a dg-do run test.

This adds those.

2025-12-03  Jakub Jelinek  <jakub@redhat.com>

	PR target/122983
	* g++.dg/cpp26/decomp18.C: Add dg-add-options tls and
	dg-require-effective-target tls_runtime directives.

diff --git a/gcc/testsuite/g++.dg/cpp26/decomp18.C b/gcc/testsuite/g++.dg/cpp26/decomp18.C
index 86b9bf433223282240ff0d0ab40cd0d834b197c0..68dae3f223f64eb854e8365feab0dc07339412bb 100644 (file)
--- a/gcc/testsuite/g++.dg/cpp26/decomp18.C
+++ b/gcc/testsuite/g++.dg/cpp26/decomp18.C
@@ -1,6 +1,8 @@
 // P1061R10 - Structured Bindings can introduce a Pack
 // { dg-do run { target c++11 } }
 // { dg-options "" }
+// { dg-add-options tls }
+// { dg-require-effective-target tls_runtime }
 
 struct S { int a, b, c; };
 namespace std {