25 files changed, 13 insertions, 113 deletions
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.capacity/operator_bool.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.capacity/operator_bool.pass.cpp
index a744f56eb811..30081fc3ada3 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.capacity/operator_bool.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.capacity/operator_bool.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/equal_comp.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/equal_comp.pass.cpp
index 05c3f230e5ca..278ea9d0660a 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/equal_comp.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/equal_comp.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/less_comp.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/less_comp.pass.cpp
index 7b3bcc394c8c..e92adf033232 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/less_comp.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/less_comp.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.completion/done.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.completion/done.pass.cpp
index 48c3ca50cbf1..74a9e7bda04e 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.completion/done.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.completion/done.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.pass.cpp
index 9e7fb5b2f687..0cd3d05c2de0 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.pass.cpp
index 961253fb7ca5..be5174dd3439 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/address.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/address.pass.cpp
index 7258f93905f3..aba5eb66314e 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/address.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/address.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/from_address.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/from_address.pass.cpp
index 26a45b033ff5..636d5da4ec6c 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/from_address.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/from_address.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.hash/hash.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.hash/hash.pass.cpp
index 5f66b3e11314..34223296231c 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.hash/hash.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.hash/hash.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.prom/promise.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.prom/promise.pass.cpp
index b38d7871be4b..4a61047a830a 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.prom/promise.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.prom/promise.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/destroy.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/destroy.pass.cpp
index 9cc0d1d72bf7..df3337c4cc01 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/destroy.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/destroy.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/resume.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/resume.pass.cpp
index b5ff187a49ce..21c05e2be9a4 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/resume.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/resume.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.handle/void_handle.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.handle/void_handle.pass.cpp
index 945304a4673d..844d34cc4896 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.handle/void_handle.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.handle/void_handle.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.traits/promise_type.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.traits/promise_type.pass.cpp
index c1d3b818d403..e26f333aa407 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.traits/promise_type.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.traits/promise_type.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_always.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_always.pass.cpp
index 1987f68e70ab..b10e72082c7a 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_always.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_always.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <type_traits>
@@ -70,4 +66,8 @@ int main()
     static_assert(std::is_trivially_copyable<S>::value, "");
     static_assert(check_suspend_constexpr(), "");
   }
+  {
+    // suppress unused warnings for the global constexpr test variable
+    ((void)constexpr_sa);
+  }
 }
diff --git a/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_never.sh.cpp b/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_never.pass.cpp
index 72e0ac024558..9c2f392381f2 100644
--- a/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_never.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_never.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <type_traits>
@@ -72,4 +68,8 @@ int main()
     static_assert(std::is_trivially_copyable<S>::value, "");
     static_assert(check_suspend_constexpr(), "");
   }
+  {
+    // suppress unused warnings for the global constexpr test variable
+    ((void)constexpr_sn);
+  }
 }
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/await_result.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/await_result.pass.cpp
index cca875d1a6ba..769a825df001 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/await_result.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/await_result.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
@@ -58,6 +54,7 @@ coro_t f(int n) {
     co_return;
   }
   int val = co_await A{};
+  ((void)val);
   set_value(42);
 }
 
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp
index e51ac67f0fef..9c3becffc0ac 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp
@@ -9,13 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// FIXME: When run under UBSAN this test hits an assertion inside Clang
-// XFAIL: ubsan
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/expected.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/expected.pass.cpp
index b6832b0c1886..77070cc5a3b0 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/expected.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/expected.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/fullexpr-dtor.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/fullexpr-dtor.pass.cpp
index c7e34fe919e1..20bcf60fbf00 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/fullexpr-dtor.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/fullexpr-dtor.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
@@ -67,6 +63,7 @@ coro2 a() {
     assert(alive == 1);
     assert(ctor_called == 1);
     assert(dtor_called == 0);
+    ((void)x);
   }
   assert(alive == 0);
   assert(dtor_called == 1);
@@ -75,7 +72,7 @@ coro2 a() {
 coro2 b() {
   reset();
   {
-    co_await Bug{};
+    (void)(co_await Bug{});
     assert(ctor_called == 1);
     assert(dtor_called == 1);
     assert(alive == 0);
@@ -102,7 +99,7 @@ coro2 c() {
 coro2 d() {
   reset();
   {
-    co_yield 42;
+    (void)(co_yield 42);
     assert(ctor_called == 1);
     assert(dtor_called == 1);
     assert(alive == 0);
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/generator.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/generator.pass.cpp
index 4681793ed814..9200fae91576 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/generator.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/generator.pass.cpp
@@ -9,13 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// FIXME: When run under UBSAN this test hits an assertion inside Clang
-// XFAIL: ubsan
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <vector>
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/go.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/go.pass.cpp
index e0d69104fdaf..1fdf2c8558eb 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/go.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/go.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
@@ -166,9 +162,7 @@ goroutine pusher(channel& left, channel& right)
   }
 }
 
-const int N = 100; //100'000'000;
-const int repeat = 1;
-
+const int N = 100;
 channel* c = new channel[N + 1];
 
 int main() {
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/multishot_func.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/multishot_func.pass.cpp
index e13196c253ea..e3c96530335d 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/multishot_func.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/multishot_func.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
diff --git a/test/std/experimental/language.support/support.coroutines/end.to.end/oneshot_func.sh.cpp b/test/std/experimental/language.support/support.coroutines/end.to.end/oneshot_func.pass.cpp
index 9c94f73b2a70..d5f2c40e2a79 100644
--- a/test/std/experimental/language.support/support.coroutines/end.to.end/oneshot_func.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/end.to.end/oneshot_func.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <vector>
diff --git a/test/std/experimental/language.support/support.coroutines/includes.sh.cpp b/test/std/experimental/language.support/support.coroutines/includes.pass.cpp
index f9d8a572256c..b30d8c7ed24f 100644
--- a/test/std/experimental/language.support/support.coroutines/includes.sh.cpp
+++ b/test/std/experimental/language.support/support.coroutines/includes.pass.cpp
@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
@@ -20,8 +16,6 @@
 
 #include <experimental/coroutine>
 
-
-
 int main(){
   // std::nothrow is not implicitly defined by the compiler when the include is
   // missing, unlike other parts of <new>. Therefore we use std::nothrow to