Re: [committed 7/9] libstdc++: Remove redundant -std=gnu++17 options from containers tests

[Jonathan Wakely <jwakely@redhat.com>]

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On 10/05/21 16:29 +0100, Jonathan Wakely wrote:
>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.
>
>Tested powerpc64le-linux. Committed to trunk.

With the patch attached this time.



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commit 7c85abec763095045ba3f78c6656117dd8f1fd01
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Mon May 10 16:22:53 2021

    libstdc++: Remove redundant -std=gnu++17 option from containers 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/23_containers/array/cons/deduction.cc: Remove
            -std=gnu++17 from dg-options directive.
            * testsuite/23_containers/array/cons/deduction_neg.cc: Likewise.
            * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
            Likewise.
            * testsuite/23_containers/array/requirements/constexpr_iter.cc:
            Likewise.
            * testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc:
            Likewise.
            * testsuite/23_containers/deque/cons/deduction.cc: Likewise.
            * testsuite/23_containers/deque/modifiers/emplace/cxx17_return.cc:
            Likewise.
            * testsuite/23_containers/forward_list/cons/deduction.cc:
            Likewise.
            * testsuite/23_containers/forward_list/modifiers/emplace_cxx17_return.cc:
            Likewise.
            * testsuite/23_containers/list/cons/deduction.cc: Likewise.
            * testsuite/23_containers/list/modifiers/emplace/cxx17_return.cc:
            Likewise.
            * testsuite/23_containers/map/cons/deduction.cc: Likewise.
            * testsuite/23_containers/map/modifiers/extract.cc: Likewise.
            * testsuite/23_containers/map/modifiers/insert/83226.cc:
            Likewise.
            * testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
            Likewise.
            * testsuite/23_containers/map/modifiers/merge.cc: Likewise.
            * testsuite/23_containers/map/modifiers/try_emplace/1.cc:
            Likewise.
            * testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
            * testsuite/23_containers/multimap/modifiers/extract.cc:
            Likewise.
            * testsuite/23_containers/multimap/modifiers/merge.cc: Likewise.
            * testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
            * testsuite/23_containers/multiset/modifiers/extract.cc:
            Likewise.
            * testsuite/23_containers/multiset/modifiers/merge.cc: Likewise.
            * testsuite/23_containers/priority_queue/deduction.cc: Likewise.
            * testsuite/23_containers/queue/deduction.cc: Likewise.
            * testsuite/23_containers/queue/members/emplace_cxx17_return.cc:
            Likewise.
            * testsuite/23_containers/set/cons/deduction.cc: Likewise.
            * testsuite/23_containers/set/modifiers/extract.cc: Likewise.
            * testsuite/23_containers/set/modifiers/merge.cc: Likewise.
            * testsuite/23_containers/set/modifiers/node_swap.cc: Likewise.
            * testsuite/23_containers/stack/deduction.cc: Likewise.
            * testsuite/23_containers/stack/members/emplace_cxx17_return.cc:
            Likewise.
            * testsuite/23_containers/unordered_map/cons/deduction.cc:
            Likewise.
            * testsuite/23_containers/unordered_map/modifiers/extract.cc:
            Likewise.
            * testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc:
            Likewise.
            * testsuite/23_containers/unordered_map/modifiers/merge.cc:
            Likewise.
            * testsuite/23_containers/unordered_map/modifiers/try_emplace.cc:
            Likewise.
            * testsuite/23_containers/unordered_multimap/cons/deduction.cc:
            Likewise.
            * testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
            Likewise.
            * testsuite/23_containers/unordered_multimap/modifiers/merge.cc:
            Likewise.
            * testsuite/23_containers/unordered_multiset/cons/deduction.cc:
            Likewise.
            * testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
            Likewise.
            * testsuite/23_containers/unordered_multiset/modifiers/merge.cc:
            Likewise.
            * testsuite/23_containers/unordered_set/cons/deduction.cc:
            Likewise.
            * testsuite/23_containers/unordered_set/modifiers/extract.cc:
            Likewise.
            * testsuite/23_containers/unordered_set/modifiers/merge.cc:
            Likewise.
            * testsuite/23_containers/vector/bool/emplace_cxx17_return.cc:
            Likewise.
            * testsuite/23_containers/vector/cons/89164_c++17.cc: Likewise.
            * testsuite/23_containers/vector/cons/deduction.cc: Likewise.
            * testsuite/23_containers/vector/modifiers/emplace/cxx17_return.cc:
            Likewise.

diff --git a/libstdc++-v3/testsuite/23_containers/array/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/array/cons/deduction.cc
index 5697e3e0fdd..00fe1928143 100644
--- a/libstdc++-v3/testsuite/23_containers/array/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/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 <array>
diff --git a/libstdc++-v3/testsuite/23_containers/array/cons/deduction_neg.cc b/libstdc++-v3/testsuite/23_containers/array/cons/deduction_neg.cc
index c85ffe5324f..f4471a2d337 100644
--- a/libstdc++-v3/testsuite/23_containers/array/cons/deduction_neg.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/cons/deduction_neg.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 <array>
@@ -26,6 +25,6 @@ test01()
   std::array a1{}; // { dg-error "class template argument deduction failed" }
   std::array a2{1, 2u, 3}; // { dg-error "class template argument deduction failed" }
 }
+// { dg-error "no matching function for call" "" { target *-*-* } 25 }
 // { dg-error "no matching function for call" "" { target *-*-* } 26 }
-// { dg-error "no matching function for call" "" { target *-*-* } 27 }
 // { dg-error "no type named .*enable_if" "" { target *-*-* } 0 }
diff --git a/libstdc++-v3/testsuite/23_containers/array/element_access/constexpr_c++17.cc b/libstdc++-v3/testsuite/23_containers/array/element_access/constexpr_c++17.cc
index 37dd539f4c4..1b1c41b92b0 100644
--- a/libstdc++-v3/testsuite/23_containers/array/element_access/constexpr_c++17.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/element_access/constexpr_c++17.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 // Copyright (C) 2011-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/23_containers/array/requirements/constexpr_iter.cc b/libstdc++-v3/testsuite/23_containers/array/requirements/constexpr_iter.cc
index 58401988928..f1662cd28f7 100644
--- a/libstdc++-v3/testsuite/23_containers/array/requirements/constexpr_iter.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/requirements/constexpr_iter.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 //
 // Copyright (C) 2019-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc b/libstdc++-v3/testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc
index 9129a1c1807..f10d9f01e17 100644
--- a/libstdc++-v3/testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 // Copyright (C) 2016-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/23_containers/deque/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/deque/cons/deduction.cc
index 8fd3b051696..8a38351e524 100644
--- a/libstdc++-v3/testsuite/23_containers/deque/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/deque/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 <deque>
diff --git a/libstdc++-v3/testsuite/23_containers/deque/modifiers/emplace/cxx17_return.cc b/libstdc++-v3/testsuite/23_containers/deque/modifiers/emplace/cxx17_return.cc
index 5987d7b055e..659b84a2ccf 100644
--- a/libstdc++-v3/testsuite/23_containers/deque/modifiers/emplace/cxx17_return.cc
+++ b/libstdc++-v3/testsuite/23_containers/deque/modifiers/emplace/cxx17_return.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 run { target c++17 } }
 
 #include <deque>
diff --git a/libstdc++-v3/testsuite/23_containers/forward_list/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/forward_list/cons/deduction.cc
index 59fe68c9f13..eb39682f483 100644
--- a/libstdc++-v3/testsuite/23_containers/forward_list/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/forward_list/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 <forward_list>
diff --git a/libstdc++-v3/testsuite/23_containers/forward_list/modifiers/emplace_cxx17_return.cc b/libstdc++-v3/testsuite/23_containers/forward_list/modifiers/emplace_cxx17_return.cc
index f8e2b3675a7..fdea5ee9c86 100644
--- a/libstdc++-v3/testsuite/23_containers/forward_list/modifiers/emplace_cxx17_return.cc
+++ b/libstdc++-v3/testsuite/23_containers/forward_list/modifiers/emplace_cxx17_return.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 run { target c++17 } }
 
 #include <forward_list>
diff --git a/libstdc++-v3/testsuite/23_containers/list/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/list/cons/deduction.cc
index 72c38f50cff..3ad1d3f6cb5 100644
--- a/libstdc++-v3/testsuite/23_containers/list/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/list/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 <list>
diff --git a/libstdc++-v3/testsuite/23_containers/list/modifiers/emplace/cxx17_return.cc b/libstdc++-v3/testsuite/23_containers/list/modifiers/emplace/cxx17_return.cc
index 19a1a176da2..e8418b0e52c 100644
--- a/libstdc++-v3/testsuite/23_containers/list/modifiers/emplace/cxx17_return.cc
+++ b/libstdc++-v3/testsuite/23_containers/list/modifiers/emplace/cxx17_return.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 run { target c++17 } }
 
 #include <list>
diff --git a/libstdc++-v3/testsuite/23_containers/map/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/map/cons/deduction.cc
index a42d8d6b881..e9628c4ac32 100644
--- a/libstdc++-v3/testsuite/23_containers/map/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <map>
diff --git a/libstdc++-v3/testsuite/23_containers/map/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/map/modifiers/extract.cc
index 541496211a7..e078d53e165 100644
--- a/libstdc++-v3/testsuite/23_containers/map/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/modifiers/extract.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 run { target c++17 } }
 
 #include <map>
diff --git a/libstdc++-v3/testsuite/23_containers/map/modifiers/insert/83226.cc b/libstdc++-v3/testsuite/23_containers/map/modifiers/insert/83226.cc
index aa0f089ae28..97b526b995d 100644
--- a/libstdc++-v3/testsuite/23_containers/map/modifiers/insert/83226.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/modifiers/insert/83226.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 <map>
diff --git a/libstdc++-v3/testsuite/23_containers/map/modifiers/insert_or_assign/1.cc b/libstdc++-v3/testsuite/23_containers/map/modifiers/insert_or_assign/1.cc
index 52618d9ecfb..5056a2e5316 100644
--- a/libstdc++-v3/testsuite/23_containers/map/modifiers/insert_or_assign/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/modifiers/insert_or_assign/1.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 
 // Copyright (C) 2015-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/23_containers/map/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/map/modifiers/merge.cc
index 326104e1283..4674f9e1ca5 100644
--- a/libstdc++-v3/testsuite/23_containers/map/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/modifiers/merge.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 run { target c++17 } }
 
 #include <map>
diff --git a/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc b/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc
index 137f4635f13..ef92254305b 100644
--- a/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/modifiers/try_emplace/1.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 
 // Copyright (C) 2015-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/23_containers/multimap/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/multimap/cons/deduction.cc
index 2f9373a5bef..791cc963479 100644
--- a/libstdc++-v3/testsuite/23_containers/multimap/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/multimap/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <map>
diff --git a/libstdc++-v3/testsuite/23_containers/multimap/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/multimap/modifiers/extract.cc
index c365e788b8e..4fe53b6134e 100644
--- a/libstdc++-v3/testsuite/23_containers/multimap/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/multimap/modifiers/extract.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 run { target c++17 } }
 
 #include <map>
diff --git a/libstdc++-v3/testsuite/23_containers/multimap/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/multimap/modifiers/merge.cc
index 9c8b1b64cd6..ec0ca500b3b 100644
--- a/libstdc++-v3/testsuite/23_containers/multimap/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/multimap/modifiers/merge.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 run { target c++17 } }
 
 #include <map>
diff --git a/libstdc++-v3/testsuite/23_containers/multiset/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/multiset/cons/deduction.cc
index 6fe2704da17..ad12755ccc6 100644
--- a/libstdc++-v3/testsuite/23_containers/multiset/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/multiset/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <set>
diff --git a/libstdc++-v3/testsuite/23_containers/multiset/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/multiset/modifiers/extract.cc
index f508fb323c1..012f58c0532 100644
--- a/libstdc++-v3/testsuite/23_containers/multiset/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/multiset/modifiers/extract.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 run { target c++17 } }
 
 #include <set>
diff --git a/libstdc++-v3/testsuite/23_containers/multiset/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/multiset/modifiers/merge.cc
index d70c9990aa8..50464d534dd 100644
--- a/libstdc++-v3/testsuite/23_containers/multiset/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/multiset/modifiers/merge.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 run { target c++17 } }
 
 #include <set>
diff --git a/libstdc++-v3/testsuite/23_containers/priority_queue/deduction.cc b/libstdc++-v3/testsuite/23_containers/priority_queue/deduction.cc
index b18a2ebb609..05c4c570ad5 100644
--- a/libstdc++-v3/testsuite/23_containers/priority_queue/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/priority_queue/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 <queue>
diff --git a/libstdc++-v3/testsuite/23_containers/queue/deduction.cc b/libstdc++-v3/testsuite/23_containers/queue/deduction.cc
index 7b3a0e0d48e..ab28f83aa2b 100644
--- a/libstdc++-v3/testsuite/23_containers/queue/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/queue/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 <queue>
diff --git a/libstdc++-v3/testsuite/23_containers/queue/members/emplace_cxx17_return.cc b/libstdc++-v3/testsuite/23_containers/queue/members/emplace_cxx17_return.cc
index 1be450a36b7..8851e64ed60 100644
--- a/libstdc++-v3/testsuite/23_containers/queue/members/emplace_cxx17_return.cc
+++ b/libstdc++-v3/testsuite/23_containers/queue/members/emplace_cxx17_return.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 run { target c++17 } }
 
 #include <queue>
diff --git a/libstdc++-v3/testsuite/23_containers/set/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/set/cons/deduction.cc
index df89fa28dd0..89a2c43b937 100644
--- a/libstdc++-v3/testsuite/23_containers/set/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/set/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <set>
diff --git a/libstdc++-v3/testsuite/23_containers/set/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/set/modifiers/extract.cc
index 713502e0bfd..8ef539042f3 100644
--- a/libstdc++-v3/testsuite/23_containers/set/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/set/modifiers/extract.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 run { target c++17 } }
 
 #include <set>
diff --git a/libstdc++-v3/testsuite/23_containers/set/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/set/modifiers/merge.cc
index 60313d4752a..d5a81a1dfc7 100644
--- a/libstdc++-v3/testsuite/23_containers/set/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/set/modifiers/merge.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 run { target c++17 } }
 
 #include <set>
diff --git a/libstdc++-v3/testsuite/23_containers/set/modifiers/node_swap.cc b/libstdc++-v3/testsuite/23_containers/set/modifiers/node_swap.cc
index 1fdfc5b0de3..baf5f018455 100644
--- a/libstdc++-v3/testsuite/23_containers/set/modifiers/node_swap.cc
+++ b/libstdc++-v3/testsuite/23_containers/set/modifiers/node_swap.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 run { target c++17 } }
 
 #include <set>
diff --git a/libstdc++-v3/testsuite/23_containers/stack/deduction.cc b/libstdc++-v3/testsuite/23_containers/stack/deduction.cc
index d746fb0986d..db8e31e2bda 100644
--- a/libstdc++-v3/testsuite/23_containers/stack/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/stack/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 <stack>
diff --git a/libstdc++-v3/testsuite/23_containers/stack/members/emplace_cxx17_return.cc b/libstdc++-v3/testsuite/23_containers/stack/members/emplace_cxx17_return.cc
index 6a07fd636b3..cb053ed7428 100644
--- a/libstdc++-v3/testsuite/23_containers/stack/members/emplace_cxx17_return.cc
+++ b/libstdc++-v3/testsuite/23_containers/stack/members/emplace_cxx17_return.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 run { target c++17 } }
 
 #include <stack>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/cons/deduction.cc
index 979a56c9497..d8489b23f8a 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/extract.cc
index a52e6d969bd..41b1f025b85 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/extract.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 run { target c++17 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc
index 1d1af9cd2db..13e0c0b96b3 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 
 // Copyright (C) 2015-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/merge.cc
index a51f175b422..9ea4865310a 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/merge.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 run { target c++17 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc
index eb72ad2a1ba..f8211654682 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/try_emplace.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do run { target c++17 } }
 
 // Copyright (C) 2015-2021 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multimap/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/unordered_multimap/cons/deduction.cc
index 72b2d07149a..13f54d43451 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multimap/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multimap/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/extract.cc
index 93771a69084..408df682a9b 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/extract.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 run { target c++17 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/merge.cc
index d98140d0c31..dc4423ac5c1 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/merge.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 run { target c++17 } }
 
 #include <unordered_map>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/cons/deduction.cc
index fa895d7ff54..1850237e44c 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multiset/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <unordered_set>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/extract.cc
index 2e1071d095c..4ac843af2c0 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/extract.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 run { target c++17 } }
 
 #include <unordered_set>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/merge.cc
index 7765f3ed4cb..1ed2ce234a1 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/modifiers/merge.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 run { target c++17 } }
 
 #include <unordered_set>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/cons/deduction.cc
index 61f21d2b1f4..a745dce0fba 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_set/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/cons/deduction.cc
@@ -1,4 +1,3 @@
-// { dg-options "-std=gnu++17" }
 // { dg-do compile { target c++17 } }
 
 #include <unordered_set>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/extract.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/extract.cc
index ca5f4ec1653..817b2a14b39 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/extract.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/extract.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 run { target c++17 } }
 
 #include <unordered_set>
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/merge.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/merge.cc
index 7cc2ce11cee..c9c8a60fd54 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/merge.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/modifiers/merge.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 run { target c++17 } }
 
 #include <unordered_set>
diff --git a/libstdc++-v3/testsuite/23_containers/vector/bool/emplace_cxx17_return.cc b/libstdc++-v3/testsuite/23_containers/vector/bool/emplace_cxx17_return.cc
index b3668824576..393adffb8f3 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/bool/emplace_cxx17_return.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/bool/emplace_cxx17_return.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 run { target c++17 } }
 
 #include <vector>
diff --git a/libstdc++-v3/testsuite/23_containers/vector/cons/89164_c++17.cc b/libstdc++-v3/testsuite/23_containers/vector/cons/89164_c++17.cc
index 76f1378f89b..78aadc4798b 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/cons/89164_c++17.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/cons/89164_c++17.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 <vector>
diff --git a/libstdc++-v3/testsuite/23_containers/vector/cons/deduction.cc b/libstdc++-v3/testsuite/23_containers/vector/cons/deduction.cc
index 7e6775b67f8..9f7b7612c93 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/cons/deduction.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/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 <vector>
diff --git a/libstdc++-v3/testsuite/23_containers/vector/modifiers/emplace/cxx17_return.cc b/libstdc++-v3/testsuite/23_containers/vector/modifiers/emplace/cxx17_return.cc
index 0f425248d90..28aa00f5b8d 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/modifiers/emplace/cxx17_return.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/modifiers/emplace/cxx17_return.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 run { target c++17 } }
 
 #include <vector>