libstdc++: Remove redundant -std=gnu++17 option from concurrency tests

GCC defaults to -std=gnu++17 now anyway, and using it explicitly in the
dg-options directive prevents running these tests with different modes
such as -std=c++17 or -std=gnu++20.

libstdc++-v3/ChangeLog:

	* testsuite/29_atomics/atomic/69769.cc: Remove -std=gnu++17 from
	dg-options.
	* testsuite/29_atomics/atomic/is_always_lock_free.cc:
	* testsuite/29_atomics/atomic/requirements/typedefs.cc:
	* testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
	* testsuite/29_atomics/atomic_integral/requirements/typedefs.cc:
	* testsuite/30_threads/lock_guard/cons/deduction.cc: Likewise.
	* testsuite/30_threads/scoped_lock/cons/1.cc: Likewise.
	* testsuite/30_threads/scoped_lock/cons/deduction.cc: Likewise.
	* testsuite/30_threads/scoped_lock/requirements/explicit_instantiation.cc:
	Likewise.
	* testsuite/30_threads/scoped_lock/requirements/typedefs.cc:
	Likewise.
	* testsuite/30_threads/shared_lock/70766.cc: Likewise.
	* testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
	* testsuite/30_threads/shared_mutex/cons/assign_neg.cc:
	Likewise.
	* testsuite/30_threads/shared_mutex/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
	Likewise.
	* testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
	* testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
	* testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
	* testsuite/30_threads/unique_lock/cons/deduction.cc: Likewise.

19 files changed, 0 insertions, 19 deletions

diff --git a/libstdc++-v3/testsuite/29_atomics/atomic/69769.cc b/libstdc++-v3/testsuite/29_atomics/atomic/69769.cc
index 8258594..d9d0821 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic/69769.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic/69769.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-atomic-builtins "" }
 
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic/is_always_lock_free.cc b/libstdc++-v3/testsuite/29_atomics/atomic/is_always_lock_free.cc
index 063076a..2fa3a40 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic/is_always_lock_free.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic/is_always_lock_free.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <atomic>
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic/requirements/typedefs.cc b/libstdc++-v3/testsuite/29_atomics/atomic/requirements/typedefs.cc
index 28adc67..c730e1a 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic/requirements/typedefs.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic/requirements/typedefs.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-atomic-builtins "" }
 
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_integral/is_always_lock_free.cc b/libstdc++-v3/testsuite/29_atomics/atomic_integral/is_always_lock_free.cc
index 1d18c93..c866118 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic_integral/is_always_lock_free.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic_integral/is_always_lock_free.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <atomic>
diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_integral/requirements/typedefs.cc b/libstdc++-v3/testsuite/29_atomics/atomic_integral/requirements/typedefs.cc
index da27c48..981a85b 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic_integral/requirements/typedefs.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic_integral/requirements/typedefs.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-atomic-builtins "" }
 
diff --git a/libstdc++-v3/testsuite/30_threads/lock_guard/cons/deduction.cc b/libstdc++-v3/testsuite/30_threads/lock_guard/cons/deduction.cc
index 9dfe6b9..9809160 100644
--- a/libstdc++-v3/testsuite/30_threads/lock_guard/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/30_threads/lock_guard/cons/deduction.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <mutex>
diff --git a/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/1.cc b/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/1.cc
index 278fd85..eef4a7f 100644
--- a/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/1.cc
+++ b/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/1.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 
 // Copyright (C) 2017-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/deduction.cc b/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/deduction.cc
index ca7dc24..2b5ea20 100644
--- a/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/30_threads/scoped_lock/cons/deduction.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <mutex>
diff --git a/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/explicit_instantiation.cc b/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/explicit_instantiation.cc
index 0e6e680..6d6ccb0 100644
--- a/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/explicit_instantiation.cc
+++ b/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/explicit_instantiation.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-gthreads "" }
 
diff --git a/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/typedefs.cc b/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/typedefs.cc
index dd9626c..8cb02cf 100644
--- a/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/typedefs.cc
+++ b/libstdc++-v3/testsuite/30_threads/scoped_lock/requirements/typedefs.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-gthreads "" }
 
diff --git a/libstdc++-v3/testsuite/30_threads/shared_lock/70766.cc b/libstdc++-v3/testsuite/30_threads/shared_lock/70766.cc
index c8e28dd..6d5755b 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_lock/70766.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_lock/70766.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <shared_mutex>
diff --git a/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/1.cc b/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/1.cc
index 7c23b9c..b83de46 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/1.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/1.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 // { dg-additional-options "-pthread" { target pthread } }
 // { dg-require-gthreads "" }
diff --git a/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/assign_neg.cc b/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/assign_neg.cc
index 6eb9a65..667aec5 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/assign_neg.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/assign_neg.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-gthreads "" }
 
diff --git a/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/copy_neg.cc b/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/copy_neg.cc
index 4152981..67a6a55 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/copy_neg.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_mutex/cons/copy_neg.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-gthreads "" }
 
diff --git a/libstdc++-v3/testsuite/30_threads/shared_mutex/requirements/standard_layout.cc b/libstdc++-v3/testsuite/30_threads/shared_mutex/requirements/standard_layout.cc
index ffb8b04..7339354 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_mutex/requirements/standard_layout.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_mutex/requirements/standard_layout.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 // { dg-require-gthreads "" }
 
diff --git a/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/1.cc b/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/1.cc
index e5665ab..42063e7 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/1.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/1.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 // { dg-additional-options "-pthread" { target pthread } }
 // { dg-require-gthreads "" }
diff --git a/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/2.cc b/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/2.cc
index 5e03cd1..9f68cec 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/2.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_mutex/try_lock/2.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 // { dg-additional-options "-pthread" { target pthread } }
 // { dg-require-gthreads "" }
diff --git a/libstdc++-v3/testsuite/30_threads/shared_mutex/unlock/1.cc b/libstdc++-v3/testsuite/30_threads/shared_mutex/unlock/1.cc
index d9f2e5e..0427f0f 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_mutex/unlock/1.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_mutex/unlock/1.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 // { dg-additional-options "-pthread" { target pthread } }
 // { dg-require-gthreads "" }
diff --git a/libstdc++-v3/testsuite/30_threads/unique_lock/cons/deduction.cc b/libstdc++-v3/testsuite/30_threads/unique_lock/cons/deduction.cc
index b9e0fbc..b676444 100644
--- a/libstdc++-v3/testsuite/30_threads/unique_lock/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/30_threads/unique_lock/cons/deduction.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <mutex>