atomics ...

llvm-svn: 121202

7 files changed, 480 insertions, 748 deletions

diff --git a/libcxx/test/atomics/atomics.types.generic/address.pass.cpp b/libcxx/test/atomics/atomics.types.generic/address.pass.cpp
new file mode 100644
index 00000000000..bf82ac4b3b6
--- /dev/null
+++ b/libcxx/test/atomics/atomics.types.generic/address.pass.cpp
@@ -0,0 +1,126 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <atomic>
+
+// template <class T>
+// struct atomic<T*>
+// {
+//     bool is_lock_free() const volatile;
+//     bool is_lock_free() const;
+//     void store(T* desr, memory_order m = memory_order_seq_cst) volatile;
+//     void store(T* desr, memory_order m = memory_order_seq_cst);
+//     T* load(memory_order m = memory_order_seq_cst) const volatile;
+//     T* load(memory_order m = memory_order_seq_cst) const;
+//     operator T*() const volatile;
+//     operator T*() const;
+//     T* exchange(T* desr, memory_order m = memory_order_seq_cst) volatile;
+//     T* exchange(T* desr, memory_order m = memory_order_seq_cst);
+//     bool compare_exchange_weak(T*& expc, T* desr,
+//                                memory_order s, memory_order f) volatile;
+//     bool compare_exchange_weak(T*& expc, T* desr,
+//                                memory_order s, memory_order f);
+//     bool compare_exchange_strong(T*& expc, T* desr,
+//                                  memory_order s, memory_order f) volatile;
+//     bool compare_exchange_strong(T*& expc, T* desr,
+//                                  memory_order s, memory_order f);
+//     bool compare_exchange_weak(T*& expc, T* desr,
+//                                memory_order m = memory_order_seq_cst) volatile;
+//     bool compare_exchange_weak(T*& expc, T* desr,
+//                                memory_order m = memory_order_seq_cst);
+//     bool compare_exchange_strong(T*& expc, T* desr,
+//                                 memory_order m = memory_order_seq_cst) volatile;
+//     bool compare_exchange_strong(T*& expc, T* desr,
+//                                  memory_order m = memory_order_seq_cst);
+//     T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile;
+//     T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst);
+//     T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile;
+//     T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst);
+// 
+//     atomic() = default;
+//     constexpr atomic(T* desr);
+//     atomic(const atomic&) = delete;
+//     atomic& operator=(const atomic&) = delete;
+//     atomic& operator=(const atomic&) volatile = delete;
+// 
+//     T* operator=(T*) volatile;
+//     T* operator=(T*);
+//     T* operator++(int) volatile;
+//     T* operator++(int);
+//     T* operator--(int) volatile;
+//     T* operator--(int);
+//     T* operator++() volatile;
+//     T* operator++();
+//     T* operator--() volatile;
+//     T* operator--();
+//     T* operator+=(ptrdiff_t op) volatile;
+//     T* operator+=(ptrdiff_t op);
+//     T* operator-=(ptrdiff_t op) volatile;
+//     T* operator-=(ptrdiff_t op);
+// };
+
+#include <atomic>
+#include <cassert>
+
+template <class A, class T>
+void
+do_test()
+{
+    typedef typename std::remove_pointer<T>::type X;
+    A obj(T(0));
+    assert(obj == T(0));
+    std::atomic_init(&obj, T(1));
+    assert(obj == T(1));
+    std::atomic_init(&obj, T(2));
+    assert(obj == T(2));
+    bool b0 = obj.is_lock_free();
+    obj.store(T(0));
+    assert(obj == T(0));
+    obj.store(T(1), std::memory_order_release);
+    assert(obj == T(1));
+    assert(obj.load() == T(1));
+    assert(obj.load(std::memory_order_acquire) == T(1));
+    assert(obj.exchange(T(2)) == T(1));
+    assert(obj == T(2));
+    assert(obj.exchange(T(3), std::memory_order_relaxed) == T(2));
+    assert(obj == T(3));
+    T x = obj;
+    assert(obj.compare_exchange_weak(x, T(2)) == true);
+    assert(obj == T(2));
+    assert(x == T(3));
+    assert(obj.compare_exchange_weak(x, T(1)) == false);
+    assert(obj == T(2));
+    assert(x == T(1));
+    x = T(2);
+    assert(obj.compare_exchange_strong(x, T(1)) == true);
+    assert(obj == T(1));
+    assert(x == T(2));
+    assert(obj.compare_exchange_strong(x, T(0)) == false);
+    assert(obj == T(1));
+    assert(x == T(0));
+    assert((obj = T(0)) == T(0));
+    assert(obj == T(0));
+    obj = T(2*sizeof(X));
+    assert((obj += std::ptrdiff_t(3)) == T(5*sizeof(X)));
+    assert(obj == T(5*sizeof(X)));
+    assert((obj -= std::ptrdiff_t(3)) == T(2*sizeof(X)));
+    assert(obj == T(2*sizeof(X)));
+}
+
+template <class A, class T>
+void test()
+{
+    do_test<A, T>();
+    do_test<volatile A, T>();
+}
+
+int main()
+{
+    test<std::atomic<int*>, int*>();
+}
diff --git a/libcxx/test/atomics/atomics.types.generic/atomics.types.address/address.pass.cpp b/libcxx/test/atomics/atomics.types.generic/atomics.types.address/address.pass.cpp
deleted file mode 100644
index 2c0d7f46204..00000000000
--- a/libcxx/test/atomics/atomics.types.generic/atomics.types.address/address.pass.cpp
+++ /dev/null
@@ -1,220 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// <atomic>
-
-// typedef struct atomic_address
-// {
-//     bool is_lock_free() const volatile;
-//     bool is_lock_free() const;
-//     void store(void*, memory_order = memory_order_seq_cst) volatile;
-//     void store(void*, memory_order = memory_order_seq_cst);
-//     void* load(memory_order = memory_order_seq_cst) const volatile;
-//     void* load(memory_order = memory_order_seq_cst) const;
-//     operator void*() const volatile;
-//     operator void*() const;
-//     void* exchange(void*, memory_order = memory_order_seq_cst) volatile;
-//     void* exchange(void*, memory_order = memory_order_seq_cst);
-//     bool compare_exchange_weak(void*&, void*, memory_order,
-//                                memory_order) volatile;
-//     bool compare_exchange_weak(void*&, void*, memory_order, memory_order);
-//     bool compare_exchange_strong(void*&, void*, memory_order,
-//                                  memory_order) volatile;
-//     bool compare_exchange_strong(void*&, void*, memory_order, memory_order);
-//     bool compare_exchange_weak(void*&, void*,
-//                                memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_weak(void*&, void*,
-//                                memory_order = memory_order_seq_cst);
-//     bool compare_exchange_strong(void*&, void*,
-//                                  memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_strong(void*&, void*,
-//                                  memory_order = memory_order_seq_cst);
-//     bool compare_exchange_weak(const void*&, const void*,
-//                                memory_order, memory_order) volatile;
-//     bool compare_exchange_weak(const void*&, const void*, memory_order,
-//                                memory_order);
-//     bool compare_exchange_strong(const void*&, const void*, memory_order,
-//                                  memory_order) volatile;
-//     bool compare_exchange_strong(const void*&, const void*, memory_order,
-//                                  memory_order);
-//     bool compare_exchange_weak(const void*&, const void*,
-//                                memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_weak(const void*&, const void*,
-//                                memory_order = memory_order_seq_cst);
-//     bool compare_exchange_strong(const void*&, const void*,
-//                                  memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_strong(const void*&, const void*,
-//                                  memory_order = memory_order_seq_cst);
-//     void* fetch_add(ptrdiff_t, memory_order = memory_order_seq_cst) volatile;
-//     void* fetch_add(ptrdiff_t, memory_order = memory_order_seq_cst);
-//     void* fetch_sub(ptrdiff_t, memory_order = memory_order_seq_cst) volatile;
-//     void* fetch_sub(ptrdiff_t, memory_order = memory_order_seq_cst);
-//     atomic_address() = default;
-//     constexpr atomic_address(void*);
-//     atomic_address(const atomic_address&) = delete;
-//     atomic_address& operator=(const atomic_address&) = delete;
-//     atomic_address& operator=(const atomic_address&) volatile = delete;
-//     void* operator=(const void*) volatile;
-//     void* operator=(const void*);
-//     void* operator+=(ptrdiff_t) volatile;
-//     void* operator+=(ptrdiff_t);
-//     void* operator-=(ptrdiff_t) volatile;
-//     void* operator-=(ptrdiff_t);
-// } atomic_address;
-// 
-// bool atomic_is_lock_free(const volatile atomic_address*);
-// bool atomic_is_lock_free(const atomic_address*);
-// void atomic_init(volatile atomic_address*, void*);
-// void atomic_init(atomic_address*, void*);
-// void atomic_store(volatile atomic_address*, void*);
-// void atomic_store(atomic_address*, void*);
-// void atomic_store_explicit(volatile atomic_address*, void*, memory_order);
-// void atomic_store_explicit(atomic_address*, void*, memory_order);
-// void* atomic_load(const volatile atomic_address*);
-// void* atomic_load(const atomic_address*);
-// void* atomic_load_explicit(const volatile atomic_address*, memory_order);
-// void* atomic_load_explicit(const atomic_address*, memory_order);
-// void* atomic_exchange(volatile atomic_address*, void*);
-// void* atomic_exchange(atomic_address*, void*);
-// void* atomic_exchange_explicit(volatile atomic_address*, void*, memory_order);
-// void* atomic_exchange_explicit(atomic_address*, void*, memory_order);
-// bool atomic_compare_exchange_weak(volatile atomic_address*, void**, void*);
-// bool atomic_compare_exchange_weak(atomic_address*, void**, void*);
-// bool atomic_compare_exchange_strong(volatile atomic_address*, void**, void*);
-// bool atomic_compare_exchange_strong(atomic_address*, void**, void*);
-// bool atomic_compare_exchange_weak_explicit(volatile atomic_address*, void**,
-//                                            void*, memory_order, memory_order);
-// bool atomic_compare_exchange_weak_explicit(atomic_address*, void**, void*,
-//                                            memory_order, memory_order);
-// bool atomic_compare_exchange_strong_explicit(volatile atomic_address*, void**,
-//                                              void*, memory_order, memory_order);
-// bool atomic_compare_exchange_strong_explicit(atomic_address*, void**, void*,
-//                                              memory_order, memory_order);
-// void* atomic_fetch_add(volatile atomic_address*, ptrdiff_t);
-// void* atomic_fetch_add(atomic_address*, ptrdiff_t);
-// void* atomic_fetch_add_explicit(volatile atomic_address*, ptrdiff_t,
-//                                 memory_order);
-// void* atomic_fetch_add_explicit(atomic_address*, ptrdiff_t, memory_order);
-// void* atomic_fetch_sub(volatile atomic_address*, ptrdiff_t);
-// void* atomic_fetch_sub(atomic_address*, ptrdiff_t);
-// void* atomic_fetch_sub_explicit(volatile atomic_address*, ptrdiff_t,
-//                                 memory_order);
-// void* atomic_fetch_sub_explicit(atomic_address*, ptrdiff_t, memory_order);
-
-#include <atomic>
-#include <cassert>
-
-template <class A, class T>
-void
-do_test()
-{
-    A obj(T(0));
-    assert(obj == T(0));
-    std::atomic_init(&obj, T(1));
-    assert(obj == T(1));
-    std::atomic_init(&obj, T(2));
-    assert(obj == T(2));
-    bool b0 = obj.is_lock_free();
-    obj.store(T(0));
-    assert(obj == T(0));
-    obj.store(T(1), std::memory_order_release);
-    assert(obj == T(1));
-    assert(obj.load() == T(1));
-    assert(obj.load(std::memory_order_acquire) == T(1));
-    assert(obj.exchange(T(2)) == T(1));
-    assert(obj == T(2));
-    assert(obj.exchange(T(3), std::memory_order_relaxed) == T(2));
-    assert(obj == T(3));
-    T x = obj;
-    assert(obj.compare_exchange_weak(x, T(2)) == true);
-    assert(obj == T(2));
-    assert(x == T(3));
-    assert(obj.compare_exchange_weak(x, T(1)) == false);
-    assert(obj == T(2));
-    assert(x == T(2));
-    assert(obj.compare_exchange_strong(x, T(1)) == true);
-    assert(obj == T(1));
-    assert(x == T(2));
-    assert(obj.compare_exchange_strong(x, T(0)) == false);
-    assert(obj == T(1));
-    assert(x == T(1));
-    assert((obj = T(0)) == T(0));
-    assert(obj == T(0));
-    obj = T(2);
-    assert((obj += std::ptrdiff_t(3)) == T(5));
-    assert(obj == T(5));
-    assert((obj -= std::ptrdiff_t(3)) == T(2));
-    assert(obj == T(2));
-
-    std::atomic_init(&obj, T(1));
-    assert(obj == T(1));
-    bool b1 = std::atomic_is_lock_free(&obj);
-    std::atomic_store(&obj, T(0));
-    assert(obj == T(0));
-    std::atomic_store_explicit(&obj, T(1), std::memory_order_release);
-    assert(obj == T(1));
-    assert(std::atomic_load(&obj) == T(1));
-    assert(std::atomic_load_explicit(&obj, std::memory_order_acquire) == T(1));
-    assert(std::atomic_exchange(&obj, T(2)) == T(1));
-    assert(obj == T(2));
-    assert(std::atomic_exchange_explicit(&obj, T(3), std::memory_order_relaxed) == T(2));
-    assert(obj == T(3));
-    x = obj;
-    assert(std::atomic_compare_exchange_weak(&obj, &x, T(2)) == true);
-    assert(obj == T(2));
-    assert(x == T(3));
-    assert(std::atomic_compare_exchange_weak(&obj, &x, T(1)) == false);
-    assert(obj == T(2));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong(&obj, &x, T(1)) == true);
-    assert(obj == T(1));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong(&obj, &x, T(0)) == false);
-    assert(obj == T(1));
-    assert(x == T(1));
-    assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, T(2),
-             std::memory_order_relaxed, std::memory_order_relaxed) == true);
-    assert(obj == T(2));
-    assert(x == T(1));
-    assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, T(3),
-            std::memory_order_relaxed, std::memory_order_relaxed) == false);
-    assert(obj == T(2));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, T(3),
-             std::memory_order_relaxed, std::memory_order_relaxed) == true);
-    assert(obj == T(3));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, T(0),
-            std::memory_order_relaxed, std::memory_order_relaxed) == false);
-    assert(obj == T(3));
-    assert(x == T(3));
-    assert((obj = T(1)) == T(1));
-    assert(obj == T(1));
-    obj = T(2);
-    assert(std::atomic_fetch_add(&obj, std::ptrdiff_t(3)) == T(2));
-    assert(obj == T(5));
-    assert(std::atomic_fetch_add_explicit(&obj, std::ptrdiff_t(3), std::memory_order_seq_cst) == T(5));
-    assert(obj == T(8));
-    assert(std::atomic_fetch_sub(&obj, std::ptrdiff_t(3)) == T(8));
-    assert(obj == T(5));
-    assert(std::atomic_fetch_sub_explicit(&obj, std::ptrdiff_t(3), std::memory_order_seq_cst) == T(5));
-    assert(obj == T(2));
-}
-
-template <class A, class T>
-void test()
-{
-    do_test<A, T>();
-    do_test<volatile A, T>();
-}
-
-int main()
-{
-    test<std::atomic_address, void*>();
-}
diff --git a/libcxx/test/atomics/atomics.types.generic/atomics.types.integral/bool.pass.cpp b/libcxx/test/atomics/atomics.types.generic/atomics.types.integral/bool.pass.cpp
deleted file mode 100644
index 3e0cd603dd5..00000000000
--- a/libcxx/test/atomics/atomics.types.generic/atomics.types.integral/bool.pass.cpp
+++ /dev/null
@@ -1,239 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// <atomic>
-
-// typedef struct atomic_bool
-// {
-//     bool is_lock_free() const volatile;
-//     bool is_lock_free() const;
-//     void store(bool, memory_order = memory_order_seq_cst) volatile;
-//     void store(bool, memory_order = memory_order_seq_cst);
-//     bool load(memory_order = memory_order_seq_cst) const volatile;
-//     bool load(memory_order = memory_order_seq_cst) const;
-//     operator bool() const volatile;
-//     operator bool() const;
-//     bool exchange(bool, memory_order = memory_order_seq_cst) volatile;
-//     bool exchange(bool, memory_order = memory_order_seq_cst);
-//     bool compare_exchange_weak(bool&, bool, memory_order,
-//                                memory_order) volatile;
-//     bool compare_exchange_weak(bool&, bool, memory_order, memory_order);
-//     bool compare_exchange_strong(bool&, bool, memory_order,
-//                                  memory_order) volatile;
-//     bool compare_exchange_strong(bool&, bool, memory_order, memory_order);
-//     bool compare_exchange_weak(bool&, bool,
-//                                memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_weak(bool&, bool,
-//                                memory_order = memory_order_seq_cst);
-//     bool compare_exchange_strong(bool&, bool,
-//                                  memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_strong(bool&, bool,
-//                                  memory_order = memory_order_seq_cst);
-//     atomic_bool() = default;
-//     constexpr atomic_bool(bool);
-//     atomic_bool(const atomic_bool&) = delete;
-//     atomic_bool& operator=(const atomic_bool&) = delete;
-//     atomic_bool& operator=(const atomic_bool&) volatile = delete;
-//     bool operator=(bool) volatile;
-//     bool operator=(bool);
-// } atomic_bool;
-// 
-// bool atomic_is_lock_free(const volatile atomic_bool*);
-// bool atomic_is_lock_free(const atomic_bool*);
-// void atomic_init(volatile atomic_bool*, bool);
-// void atomic_init(atomic_bool*, bool);
-// void atomic_store(volatile atomic_bool*, bool);
-// void atomic_store(atomic_bool*, bool);
-// void atomic_store_explicit(volatile atomic_bool*, bool, memory_order);
-// void atomic_store_explicit(atomic_bool*, bool, memory_order);
-// bool atomic_load(const volatile atomic_bool*);
-// bool atomic_load(const atomic_bool*);
-// bool atomic_load_explicit(const volatile atomic_bool*, memory_order);
-// bool atomic_load_explicit(const atomic_bool*, memory_order);
-// bool atomic_exchange(volatile atomic_bool*, bool);
-// bool atomic_exchange(atomic_bool*, bool);
-// bool atomic_exchange_explicit(volatile atomic_bool*, bool, memory_order);
-// bool atomic_exchange_explicit(atomic_bool*, bool, memory_order);
-// bool atomic_compare_exchange_weak(volatile atomic_bool*, bool*, bool);
-// bool atomic_compare_exchange_weak(atomic_bool*, bool*, bool);
-// bool atomic_compare_exchange_strong(volatile atomic_bool*, bool*, bool);
-// bool atomic_compare_exchange_strong(atomic_bool*, bool*, bool);
-// bool atomic_compare_exchange_weak_explicit(volatile atomic_bool*, bool*, bool,
-//                                            memory_order, memory_order);
-// bool atomic_compare_exchange_weak_explicit(atomic_bool*, bool*, bool,
-//                                            memory_order, memory_order);
-// bool atomic_compare_exchange_strong_explicit(volatile atomic_bool*, bool*, bool,
-//                                              memory_order, memory_order);
-// bool atomic_compare_exchange_strong_explicit(atomic_bool*, bool*, bool,
-//                                              memory_order, memory_order);
-
-#include <atomic>
-#include <cassert>
-
-int main()
-{
-    {
-        volatile std::atomic_bool obj(true);
-        assert(obj == true);
-        std::atomic_init(&obj, false);
-        assert(obj == false);
-        std::atomic_init(&obj, true);
-        assert(obj == true);
-        bool b0 = obj.is_lock_free();
-        obj.store(false);
-        assert(obj == false);
-        obj.store(true, std::memory_order_release);
-        assert(obj == true);
-        assert(obj.load() == true);
-        assert(obj.load(std::memory_order_acquire) == true);
-        assert(obj.exchange(false) == true);
-        assert(obj == false);
-        assert(obj.exchange(true, std::memory_order_relaxed) == false);
-        assert(obj == true);
-        bool x = obj;
-        assert(obj.compare_exchange_weak(x, false) == true);
-        assert(obj == false);
-        assert(x == true);
-        assert(obj.compare_exchange_weak(x, true) == false);
-        assert(obj == false);
-        assert(x == false);
-        assert(obj.compare_exchange_strong(x, true) == true);
-        assert(obj == true);
-        assert(x == false);
-        assert(obj.compare_exchange_strong(x, false) == false);
-        assert(obj == true);
-        assert(x == true);
-        assert((obj = false) == false);
-        assert(obj == false);
-
-        std::atomic_init(&obj, true);
-        assert(obj == true);
-        bool b1 = std::atomic_is_lock_free(&obj);
-        std::atomic_store(&obj, false);
-        assert(obj == false);
-        std::atomic_store_explicit(&obj, true, std::memory_order_release);
-        assert(obj == true);
-        assert(std::atomic_load(&obj) == true);
-        assert(std::atomic_load_explicit(&obj, std::memory_order_acquire) == true);
-        assert(std::atomic_exchange(&obj, false) == true);
-        assert(obj == false);
-        assert(std::atomic_exchange_explicit(&obj, true, std::memory_order_relaxed) == false);
-        assert(obj == true);
-        x = obj;
-        assert(std::atomic_compare_exchange_weak(&obj, &x, false) == true);
-        assert(obj == false);
-        assert(x == true);
-        assert(std::atomic_compare_exchange_weak(&obj, &x, true) == false);
-        assert(obj == false);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong(&obj, &x, true) == true);
-        assert(obj == true);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong(&obj, &x, false) == false);
-        assert(obj == true);
-        assert(x == true);
-        assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, false,
-                 std::memory_order_relaxed, std::memory_order_relaxed) == true);
-        assert(obj == false);
-        assert(x == true);
-        assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, true,
-                std::memory_order_relaxed, std::memory_order_relaxed) == false);
-        assert(obj == false);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, true,
-                 std::memory_order_relaxed, std::memory_order_relaxed) == true);
-        assert(obj == true);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, false,
-                std::memory_order_relaxed, std::memory_order_relaxed) == false);
-        assert(obj == true);
-        assert(x == true);
-        assert((obj = false) == false);
-        assert(obj == false);
-    }
-    {
-        std::atomic_bool obj(true);
-        assert(obj == true);
-        std::atomic_init(&obj, false);
-        assert(obj == false);
-        std::atomic_init(&obj, true);
-        assert(obj == true);
-        bool b0 = obj.is_lock_free();
-        obj.store(false);
-        assert(obj == false);
-        obj.store(true, std::memory_order_release);
-        assert(obj == true);
-        assert(obj.load() == true);
-        assert(obj.load(std::memory_order_acquire) == true);
-        assert(obj.exchange(false) == true);
-        assert(obj == false);
-        assert(obj.exchange(true, std::memory_order_relaxed) == false);
-        assert(obj == true);
-        bool x = obj;
-        assert(obj.compare_exchange_weak(x, false) == true);
-        assert(obj == false);
-        assert(x == true);
-        assert(obj.compare_exchange_weak(x, true) == false);
-        assert(obj == false);
-        assert(x == false);
-        assert(obj.compare_exchange_strong(x, true) == true);
-        assert(obj == true);
-        assert(x == false);
-        assert(obj.compare_exchange_strong(x, false) == false);
-        assert(obj == true);
-        assert(x == true);
-        assert((obj = false) == false);
-        assert(obj == false);
-
-        std::atomic_init(&obj, true);
-        assert(obj == true);
-        bool b1 = std::atomic_is_lock_free(&obj);
-        std::atomic_store(&obj, false);
-        assert(obj == false);
-        std::atomic_store_explicit(&obj, true, std::memory_order_release);
-        assert(obj == true);
-        assert(std::atomic_load(&obj) == true);
-        assert(std::atomic_load_explicit(&obj, std::memory_order_acquire) == true);
-        assert(std::atomic_exchange(&obj, false) == true);
-        assert(obj == false);
-        assert(std::atomic_exchange_explicit(&obj, true, std::memory_order_relaxed) == false);
-        assert(obj == true);
-        x = obj;
-        assert(std::atomic_compare_exchange_weak(&obj, &x, false) == true);
-        assert(obj == false);
-        assert(x == true);
-        assert(std::atomic_compare_exchange_weak(&obj, &x, true) == false);
-        assert(obj == false);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong(&obj, &x, true) == true);
-        assert(obj == true);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong(&obj, &x, false) == false);
-        assert(obj == true);
-        assert(x == true);
-        assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, false,
-                 std::memory_order_relaxed, std::memory_order_relaxed) == true);
-        assert(obj == false);
-        assert(x == true);
-        assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, true,
-                std::memory_order_relaxed, std::memory_order_relaxed) == false);
-        assert(obj == false);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, true,
-                 std::memory_order_relaxed, std::memory_order_relaxed) == true);
-        assert(obj == true);
-        assert(x == false);
-        assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, false,
-                std::memory_order_relaxed, std::memory_order_relaxed) == false);
-        assert(obj == true);
-        assert(x == true);
-        assert((obj = false) == false);
-        assert(obj == false);
-    }
-}
diff --git a/libcxx/test/atomics/atomics.types.generic/atomics.types.integral/integral.pass.cpp b/libcxx/test/atomics/atomics.types.generic/atomics.types.integral/integral.pass.cpp
deleted file mode 100644
index 7fa61f785e8..00000000000
--- a/libcxx/test/atomics/atomics.types.generic/atomics.types.integral/integral.pass.cpp
+++ /dev/null
@@ -1,276 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// <atomic>
-
-// typedef struct atomic_itype
-// {
-//     bool is_lock_free() const volatile;
-//     bool is_lock_free() const;
-//     void store(itype, memory_order = memory_order_seq_cst) volatile;
-//     void store(itype, memory_order = memory_order_seq_cst);
-//     itype load(memory_order = memory_order_seq_cst) const volatile;
-//     itype load(memory_order = memory_order_seq_cst) const;
-//     operator itype() const volatile;
-//     operator itype() const;
-//     itype exchange(itype, memory_order = memory_order_seq_cst) volatile;
-//     itype exchange(itype, memory_order = memory_order_seq_cst);
-//     bool compare_exchange_weak(itype&, itype, memory_order,
-//                                memory_order) volatile;
-//     bool compare_exchange_weak(itype&, itype, memory_order, memory_order);
-//     bool compare_exchange_strong(itype&, itype, memory_order,
-//                                  memory_order) volatile;
-//     bool compare_exchange_strong(itype&, itype, memory_order, memory_order);
-//     bool compare_exchange_weak(itype&, itype,
-//                                memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_weak(itype&, itype,
-//                                memory_order = memory_order_seq_cst);
-//     bool compare_exchange_strong(itype&, itype,
-//                                  memory_order = memory_order_seq_cst) volatile;
-//     bool compare_exchange_strong(itype&, itype,
-//                                  memory_order = memory_order_seq_cst);
-//     itype fetch_add(itype, memory_order = memory_order_seq_cst) volatile;
-//     itype fetch_add(itype, memory_order = memory_order_seq_cst);
-//     itype fetch_sub(itype, memory_order = memory_order_seq_cst) volatile;
-//     itype fetch_sub(itype, memory_order = memory_order_seq_cst);
-//     itype fetch_and(itype, memory_order = memory_order_seq_cst) volatile;
-//     itype fetch_and(itype, memory_order = memory_order_seq_cst);
-//     itype fetch_or(itype, memory_order = memory_order_seq_cst) volatile;
-//     itype fetch_or(itype, memory_order = memory_order_seq_cst);
-//     itype fetch_xor(itype, memory_order = memory_order_seq_cst) volatile;
-//     itype fetch_xor(itype, memory_order = memory_order_seq_cst);
-//     atomic_itype() = default;
-//     constexpr atomic_itype(itype);
-//     atomic_itype(const atomic_itype&) = delete;
-//     atomic_itype& operator=(const atomic_itype&) = delete;
-//     atomic_itype& operator=(const atomic_itype&) volatile = delete;
-//     itype operator=(itype) volatile;
-//     itype operator=(itype);
-//     itype operator++(int) volatile;
-//     itype operator++(int);
-//     itype operator--(int) volatile;
-//     itype operator--(int);
-//     itype operator++() volatile;
-//     itype operator++();
-//     itype operator--() volatile;
-//     itype operator--();
-//     itype operator+=(itype) volatile;
-//     itype operator+=(itype);
-//     itype operator-=(itype) volatile;
-//     itype operator-=(itype);
-//     itype operator&=(itype) volatile;
-//     itype operator&=(itype);
-//     itype operator|=(itype) volatile;
-//     itype operator|=(itype);
-//     itype operator^=(itype) volatile;
-//     itype operator^=(itype);
-// } atomic_itype;
-// 
-// bool atomic_is_lock_free(const volatile atomic_itype*);
-// bool atomic_is_lock_free(const atomic_itype*);
-// void atomic_init(volatile atomic_itype*, itype);
-// void atomic_init(atomic_itype*, itype);
-// void atomic_store(volatile atomic_itype*, itype);
-// void atomic_store(atomic_itype*, itype);
-// void atomic_store_explicit(volatile atomic_itype*, itype, memory_order);
-// void atomic_store_explicit(atomic_itype*, itype, memory_order);
-// itype atomic_load(const volatile atomic_itype*);
-// itype atomic_load(const atomic_itype*);
-// itype atomic_load_explicit(const volatile atomic_itype*, memory_order);
-// itype atomic_load_explicit(const atomic_itype*, memory_order);
-// itype atomic_exchange(volatile atomic_itype*, itype);
-// itype atomic_exchange(atomic_itype*, itype);
-// itype atomic_exchange_explicit(volatile atomic_itype*, itype, memory_order);
-// itype atomic_exchange_explicit(atomic_itype*, itype, memory_order);
-// bool atomic_compare_exchange_weak(volatile atomic_itype*, itype*, itype);
-// bool atomic_compare_exchange_weak(atomic_itype*, itype*, itype);
-// bool atomic_compare_exchange_strong(volatile atomic_itype*, itype*, itype);
-// bool atomic_compare_exchange_strong(atomic_itype*, itype*, itype);
-// bool atomic_compare_exchange_weak_explicit(volatile atomic_itype*, itype*, itype,
-//                                            memory_order, memory_order);
-// bool atomic_compare_exchange_weak_explicit(atomic_itype*, itype*, itype,
-//                                            memory_order, memory_order);
-// bool atomic_compare_exchange_strong_explicit(volatile atomic_itype*, itype*, itype,
-//                                              memory_order, memory_order);
-// bool atomic_compare_exchange_strong_explicit(atomic_itype*, itype*, itype,
-//                                              memory_order, memory_order);
-// itype atomic_fetch_add(volatile atomic_itype*, itype);
-// itype atomic_fetch_add(atomic_itype*, itype);
-// itype atomic_fetch_add_explicit(volatile atomic_itype*, itype, memory_order);
-// itype atomic_fetch_add_explicit(atomic_itype*, itype, memory_order);
-// itype atomic_fetch_sub(volatile atomic_itype*, itype);
-// itype atomic_fetch_sub(atomic_itype*, itype);
-// itype atomic_fetch_sub_explicit(volatile atomic_itype*, itype, memory_order);
-// itype atomic_fetch_sub_explicit(atomic_itype*, itype, memory_order);
-// itype atomic_fetch_and(volatile atomic_itype*, itype);
-// itype atomic_fetch_and(atomic_itype*, itype);
-// itype atomic_fetch_and_explicit(volatile atomic_itype*, itype, memory_order);
-// itype atomic_fetch_and_explicit(atomic_itype*, itype, memory_order);
-// itype atomic_fetch_or(volatile atomic_itype*, itype);
-// itype atomic_fetch_or(atomic_itype*, itype);
-// itype atomic_fetch_or_explicit(volatile atomic_itype*, itype, memory_order);
-// itype atomic_fetch_or_explicit(atomic_itype*, itype, memory_order);
-// itype atomic_fetch_xor(volatile atomic_itype*, itype);
-// itype atomic_fetch_xor(atomic_itype*, itype);
-// itype atomic_fetch_xor_explicit(volatile atomic_itype*, itype, memory_order);
-// itype atomic_fetch_xor_explicit(atomic_itype*, itype, memory_order);
-
-#include <atomic>
-#include <cassert>
-
-template <class A, class T>
-void
-do_test()
-{
-    A obj(T(0));
-    assert(obj == T(0));
-    std::atomic_init(&obj, T(1));
-    assert(obj == T(1));
-    std::atomic_init(&obj, T(2));
-    assert(obj == T(2));
-    bool b0 = obj.is_lock_free();
-    obj.store(T(0));
-    assert(obj == T(0));
-    obj.store(T(1), std::memory_order_release);
-    assert(obj == T(1));
-    assert(obj.load() == T(1));
-    assert(obj.load(std::memory_order_acquire) == T(1));
-    assert(obj.exchange(T(2)) == T(1));
-    assert(obj == T(2));
-    assert(obj.exchange(T(3), std::memory_order_relaxed) == T(2));
-    assert(obj == T(3));
-    T x = obj;
-    assert(obj.compare_exchange_weak(x, T(2)) == true);
-    assert(obj == T(2));
-    assert(x == T(3));
-    assert(obj.compare_exchange_weak(x, T(1)) == false);
-    assert(obj == T(2));
-    assert(x == T(2));
-    assert(obj.compare_exchange_strong(x, T(1)) == true);
-    assert(obj == T(1));
-    assert(x == T(2));
-    assert(obj.compare_exchange_strong(x, T(0)) == false);
-    assert(obj == T(1));
-    assert(x == T(1));
-    assert((obj = T(0)) == T(0));
-    assert(obj == T(0));
-    assert(obj++ == T(0));
-    assert(obj == T(1));
-    assert(++obj == T(2));
-    assert(obj == T(2));
-    assert(--obj == T(1));
-    assert(obj == T(1));
-    assert(obj-- == T(1));
-    assert(obj == T(0));
-    obj = T(2);
-    assert((obj += T(3)) == T(5));
-    assert(obj == T(5));
-    assert((obj -= T(3)) == T(2));
-    assert(obj == T(2));
-    assert((obj |= T(5)) == T(7));
-    assert(obj == T(7));
-    assert((obj &= T(0xF)) == T(7));
-    assert(obj == T(7));
-    assert((obj ^= T(0xF)) == T(8));
-    assert(obj == T(8));
-
-    std::atomic_init(&obj, T(1));
-    assert(obj == T(1));
-    bool b1 = std::atomic_is_lock_free(&obj);
-    std::atomic_store(&obj, T(0));
-    assert(obj == T(0));
-    std::atomic_store_explicit(&obj, T(1), std::memory_order_release);
-    assert(obj == T(1));
-    assert(std::atomic_load(&obj) == T(1));
-    assert(std::atomic_load_explicit(&obj, std::memory_order_acquire) == T(1));
-    assert(std::atomic_exchange(&obj, T(2)) == T(1));
-    assert(obj == T(2));
-    assert(std::atomic_exchange_explicit(&obj, T(3), std::memory_order_relaxed) == T(2));
-    assert(obj == T(3));
-    x = obj;
-    assert(std::atomic_compare_exchange_weak(&obj, &x, T(2)) == true);
-    assert(obj == T(2));
-    assert(x == T(3));
-    assert(std::atomic_compare_exchange_weak(&obj, &x, T(1)) == false);
-    assert(obj == T(2));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong(&obj, &x, T(1)) == true);
-    assert(obj == T(1));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong(&obj, &x, T(0)) == false);
-    assert(obj == T(1));
-    assert(x == T(1));
-    assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, T(2),
-             std::memory_order_relaxed, std::memory_order_relaxed) == true);
-    assert(obj == T(2));
-    assert(x == T(1));
-    assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, T(3),
-            std::memory_order_relaxed, std::memory_order_relaxed) == false);
-    assert(obj == T(2));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, T(3),
-             std::memory_order_relaxed, std::memory_order_relaxed) == true);
-    assert(obj == T(3));
-    assert(x == T(2));
-    assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, T(0),
-            std::memory_order_relaxed, std::memory_order_relaxed) == false);
-    assert(obj == T(3));
-    assert(x == T(3));
-    assert((obj = T(1)) == T(1));
-    assert(obj == T(1));
-    obj = T(2);
-    assert(std::atomic_fetch_add(&obj, T(3)) == T(2));
-    assert(obj == T(5));
-    assert(std::atomic_fetch_add_explicit(&obj, T(3), std::memory_order_seq_cst) == T(5));
-    assert(obj == T(8));
-    assert(std::atomic_fetch_sub(&obj, T(3)) == T(8));
-    assert(obj == T(5));
-    assert(std::atomic_fetch_sub_explicit(&obj, T(3), std::memory_order_seq_cst) == T(5));
-    assert(obj == T(2));
-    assert(std::atomic_fetch_or(&obj, T(5)) == T(2));
-    assert(obj == T(7));
-    assert(std::atomic_fetch_or_explicit(&obj, T(8), std::memory_order_seq_cst) == T(7));
-    assert(obj == T(0xF));
-    assert(std::atomic_fetch_and(&obj, T(7)) == T(0xF));
-    assert(obj == T(7));
-    assert(std::atomic_fetch_and_explicit(&obj, T(3), std::memory_order_seq_cst) == T(7));
-    assert(obj == T(3));
-    assert(std::atomic_fetch_xor(&obj, T(7)) == T(3));
-    assert(obj == T(4));
-    assert(std::atomic_fetch_xor_explicit(&obj, T(7), std::memory_order_seq_cst) == T(4));
-    assert(obj == T(3));
-}
-
-template <class A, class T>
-void test()
-{
-    do_test<A, T>();
-    do_test<volatile A, T>();
-}
-
-
-int main()
-{
-    test<std::atomic_char, char>();
-    test<std::atomic_schar, signed char>();
-    test<std::atomic_uchar, unsigned char>();
-    test<std::atomic_short, short>();
-    test<std::atomic_ushort, unsigned short>();
-    test<std::atomic_int, int>();
-    test<std::atomic_uint, unsigned int>();
-    test<std::atomic_long, long>();
-    test<std::atomic_ulong, unsigned long>();
-    test<std::atomic_llong, long long>();
-    test<std::atomic_ullong, unsigned long long>();
-#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
-    test<std::atomic_char16_t, char16_t>();
-    test<std::atomic_char32_t, char32_t>();
-#endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
-    test<std::atomic_wchar_t, wchar_t>();
-}
diff --git a/libcxx/test/atomics/atomics.types.generic/bool.pass.cpp b/libcxx/test/atomics/atomics.types.generic/bool.pass.cpp
new file mode 100644
index 00000000000..c1465546f1d
--- /dev/null
+++ b/libcxx/test/atomics/atomics.types.generic/bool.pass.cpp
@@ -0,0 +1,163 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <atomic>
+
+// template <class T>
+// struct atomic
+// {
+//     bool is_lock_free() const volatile;
+//     bool is_lock_free() const;
+//     void store(T desr, memory_order m = memory_order_seq_cst) volatile;
+//     void store(T desr, memory_order m = memory_order_seq_cst);
+//     T load(memory_order m = memory_order_seq_cst) const volatile;
+//     T load(memory_order m = memory_order_seq_cst) const;
+//     operator T() const volatile;
+//     operator T() const;
+//     T exchange(T desr, memory_order m = memory_order_seq_cst) volatile;
+//     T exchange(T desr, memory_order m = memory_order_seq_cst);
+//     bool compare_exchange_weak(T& expc, T desr,
+//                                memory_order s, memory_order f) volatile;
+//     bool compare_exchange_weak(T& expc, T desr, memory_order s, memory_order f);
+//     bool compare_exchange_strong(T& expc, T desr,
+//                                  memory_order s, memory_order f) volatile;
+//     bool compare_exchange_strong(T& expc, T desr,
+//                                  memory_order s, memory_order f);
+//     bool compare_exchange_weak(T& expc, T desr,
+//                                memory_order m = memory_order_seq_cst) volatile;
+//     bool compare_exchange_weak(T& expc, T desr,
+//                                memory_order m = memory_order_seq_cst);
+//     bool compare_exchange_strong(T& expc, T desr,
+//                                 memory_order m = memory_order_seq_cst) volatile;
+//     bool compare_exchange_strong(T& expc, T desr,
+//                                  memory_order m = memory_order_seq_cst);
+// 
+//     atomic() = default;
+//     constexpr atomic(T desr);
+//     atomic(const atomic&) = delete;
+//     atomic& operator=(const atomic&) = delete;
+//     atomic& operator=(const atomic&) volatile = delete;
+//     T operator=(T) volatile;
+//     T operator=(T);
+// };
+
+#include <atomic>
+#include <cassert>
+
+int main()
+{
+    {
+        volatile std::atomic<bool> _;
+        volatile std::atomic<bool> obj(true);
+        assert(obj == true);
+        std::atomic_init(&obj, false);
+        assert(obj == false);
+        std::atomic_init(&obj, true);
+        assert(obj == true);
+        bool b0 = obj.is_lock_free();
+        obj.store(false);
+        assert(obj == false);
+        obj.store(true, std::memory_order_release);
+        assert(obj == true);
+        assert(obj.load() == true);
+        assert(obj.load(std::memory_order_acquire) == true);
+        assert(obj.exchange(false) == true);
+        assert(obj == false);
+        assert(obj.exchange(true, std::memory_order_relaxed) == false);
+        assert(obj == true);
+        bool x = obj;
+        assert(obj.compare_exchange_weak(x, false) == true);
+        assert(obj == false);
+        assert(x == true);
+        assert(obj.compare_exchange_weak(x, true,
+                                         std::memory_order_seq_cst) == false);
+        assert(obj == false);
+        assert(x == true);
+        obj.store(true);
+        assert(obj.compare_exchange_weak(x, false,
+                                         std::memory_order_seq_cst,
+                                         std::memory_order_seq_cst) == true);
+        assert(obj == false);
+        assert(x == true);
+        x = true;
+        obj.store(true);
+        assert(obj.compare_exchange_strong(x, false) == true);
+        assert(obj == false);
+        assert(x == true);
+        assert(obj.compare_exchange_strong(x, true,
+                                         std::memory_order_seq_cst) == false);
+        assert(obj == false);
+        assert(x == true);
+        x = true;
+        obj.store(true);
+        assert(obj.compare_exchange_strong(x, false,
+                                           std::memory_order_seq_cst,
+                                           std::memory_order_seq_cst) == true);
+        assert(obj == false);
+        assert(x == true);
+        assert((obj = false) == false);
+        assert(obj == false);
+        assert((obj = true) == true);
+        assert(obj == true);
+    }
+    {
+        std::atomic<bool> _;
+        std::atomic<bool> obj(true);
+        assert(obj == true);
+        std::atomic_init(&obj, false);
+        assert(obj == false);
+        std::atomic_init(&obj, true);
+        assert(obj == true);
+        bool b0 = obj.is_lock_free();
+        obj.store(false);
+        assert(obj == false);
+        obj.store(true, std::memory_order_release);
+        assert(obj == true);
+        assert(obj.load() == true);
+        assert(obj.load(std::memory_order_acquire) == true);
+        assert(obj.exchange(false) == true);
+        assert(obj == false);
+        assert(obj.exchange(true, std::memory_order_relaxed) == false);
+        assert(obj == true);
+        bool x = obj;
+        assert(obj.compare_exchange_weak(x, false) == true);
+        assert(obj == false);
+        assert(x == true);
+        assert(obj.compare_exchange_weak(x, true,
+                                         std::memory_order_seq_cst) == false);
+        assert(obj == false);
+        assert(x == true);
+        obj.store(true);
+        assert(obj.compare_exchange_weak(x, false,
+                                         std::memory_order_seq_cst,
+                                         std::memory_order_seq_cst) == true);
+        assert(obj == false);
+        assert(x == true);
+        x = true;
+        obj.store(true);
+        assert(obj.compare_exchange_strong(x, false) == true);
+        assert(obj == false);
+        assert(x == true);
+        assert(obj.compare_exchange_strong(x, true,
+                                         std::memory_order_seq_cst) == false);
+        assert(obj == false);
+        assert(x == true);
+        x = true;
+        obj.store(true);
+        assert(obj.compare_exchange_strong(x, false,
+                                           std::memory_order_seq_cst,
+                                           std::memory_order_seq_cst) == true);
+        assert(obj == false);
+        assert(x == true);
+        assert((obj = false) == false);
+        assert(obj == false);
+        assert((obj = true) == true);
+        assert(obj == true);
+    }
+}
diff --git a/libcxx/test/atomics/atomics.types.generic/integral.pass.cpp b/libcxx/test/atomics/atomics.types.generic/integral.pass.cpp
new file mode 100644
index 00000000000..ff204ee6179
--- /dev/null
+++ b/libcxx/test/atomics/atomics.types.generic/integral.pass.cpp
@@ -0,0 +1,191 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <atomic>
+
+// template <>
+// struct atomic<integral>
+// {
+//     bool is_lock_free() const volatile;
+//     bool is_lock_free() const;
+//     void store(integral desr, memory_order m = memory_order_seq_cst) volatile;
+//     void store(integral desr, memory_order m = memory_order_seq_cst);
+//     integral load(memory_order m = memory_order_seq_cst) const volatile;
+//     integral load(memory_order m = memory_order_seq_cst) const;
+//     operator integral() const volatile;
+//     operator integral() const;
+//     integral exchange(integral desr,
+//                       memory_order m = memory_order_seq_cst) volatile;
+//     integral exchange(integral desr, memory_order m = memory_order_seq_cst);
+//     bool compare_exchange_weak(integral& expc, integral desr,
+//                                memory_order s, memory_order f) volatile;
+//     bool compare_exchange_weak(integral& expc, integral desr,
+//                                memory_order s, memory_order f);
+//     bool compare_exchange_strong(integral& expc, integral desr,
+//                                  memory_order s, memory_order f) volatile;
+//     bool compare_exchange_strong(integral& expc, integral desr,
+//                                  memory_order s, memory_order f);
+//     bool compare_exchange_weak(integral& expc, integral desr,
+//                                memory_order m = memory_order_seq_cst) volatile;
+//     bool compare_exchange_weak(integral& expc, integral desr,
+//                                memory_order m = memory_order_seq_cst);
+//     bool compare_exchange_strong(integral& expc, integral desr,
+//                                 memory_order m = memory_order_seq_cst) volatile;
+//     bool compare_exchange_strong(integral& expc, integral desr,
+//                                  memory_order m = memory_order_seq_cst);
+// 
+//     integral
+//         fetch_add(integral op, memory_order m = memory_order_seq_cst) volatile;
+//     integral fetch_add(integral op, memory_order m = memory_order_seq_cst);
+//     integral
+//         fetch_sub(integral op, memory_order m = memory_order_seq_cst) volatile;
+//     integral fetch_sub(integral op, memory_order m = memory_order_seq_cst);
+//     integral
+//         fetch_and(integral op, memory_order m = memory_order_seq_cst) volatile;
+//     integral fetch_and(integral op, memory_order m = memory_order_seq_cst);
+//     integral
+//         fetch_or(integral op, memory_order m = memory_order_seq_cst) volatile;
+//     integral fetch_or(integral op, memory_order m = memory_order_seq_cst);
+//     integral
+//         fetch_xor(integral op, memory_order m = memory_order_seq_cst) volatile;
+//     integral fetch_xor(integral op, memory_order m = memory_order_seq_cst);
+// 
+//     atomic() = default;
+//     constexpr atomic(integral desr);
+//     atomic(const atomic&) = delete;
+//     atomic& operator=(const atomic&) = delete;
+//     atomic& operator=(const atomic&) volatile = delete;
+//     integral operator=(integral desr) volatile;
+//     integral operator=(integral desr);
+// 
+//     integral operator++(int) volatile;
+//     integral operator++(int);
+//     integral operator--(int) volatile;
+//     integral operator--(int);
+//     integral operator++() volatile;
+//     integral operator++();
+//     integral operator--() volatile;
+//     integral operator--();
+//     integral operator+=(integral op) volatile;
+//     integral operator+=(integral op);
+//     integral operator-=(integral op) volatile;
+//     integral operator-=(integral op);
+//     integral operator&=(integral op) volatile;
+//     integral operator&=(integral op);
+//     integral operator|=(integral op) volatile;
+//     integral operator|=(integral op);
+//     integral operator^=(integral op) volatile;
+//     integral operator^=(integral op);
+// };
+
+#include <atomic>
+#include <cassert>
+
+template <class A, class T>
+void
+do_test()
+{
+    A obj(T(0));
+    assert(obj == T(0));
+    std::atomic_init(&obj, T(1));
+    assert(obj == T(1));
+    std::atomic_init(&obj, T(2));
+    assert(obj == T(2));
+    bool b0 = obj.is_lock_free();
+    obj.store(T(0));
+    assert(obj == T(0));
+    obj.store(T(1), std::memory_order_release);
+    assert(obj == T(1));
+    assert(obj.load() == T(1));
+    assert(obj.load(std::memory_order_acquire) == T(1));
+    assert(obj.exchange(T(2)) == T(1));
+    assert(obj == T(2));
+    assert(obj.exchange(T(3), std::memory_order_relaxed) == T(2));
+    assert(obj == T(3));
+    T x = obj;
+    assert(obj.compare_exchange_weak(x, T(2)) == true);
+    assert(obj == T(2));
+    assert(x == T(3));
+    assert(obj.compare_exchange_weak(x, T(1)) == false);
+    assert(obj == T(2));
+    assert(x == T(1));
+    x = T(2);
+    assert(obj.compare_exchange_strong(x, T(1)) == true);
+    assert(obj == T(1));
+    assert(x == T(2));
+    assert(obj.compare_exchange_strong(x, T(0)) == false);
+    assert(obj == T(1));
+    assert(x == T(0));
+    assert((obj = T(0)) == T(0));
+    assert(obj == T(0));
+    assert(obj++ == T(0));
+    assert(obj == T(1));
+    assert(++obj == T(2));
+    assert(obj == T(2));
+    assert(--obj == T(1));
+    assert(obj == T(1));
+    assert(obj-- == T(1));
+    assert(obj == T(0));
+    obj = T(2);
+    assert((obj += T(3)) == T(5));
+    assert(obj == T(5));
+    assert((obj -= T(3)) == T(2));
+    assert(obj == T(2));
+    assert((obj |= T(5)) == T(7));
+    assert(obj == T(7));
+    assert((obj &= T(0xF)) == T(7));
+    assert(obj == T(7));
+    assert((obj ^= T(0xF)) == T(8));
+    assert(obj == T(8));
+}
+
+template <class A, class T>
+void test()
+{
+    do_test<A, T>();
+    do_test<volatile A, T>();
+}
+
+
+int main()
+{
+    test<std::atomic_char, char>();
+    test<std::atomic_schar, signed char>();
+    test<std::atomic_uchar, unsigned char>();
+    test<std::atomic_short, short>();
+    test<std::atomic_ushort, unsigned short>();
+    test<std::atomic_int, int>();
+    test<std::atomic_uint, unsigned int>();
+    test<std::atomic_long, long>();
+    test<std::atomic_ulong, unsigned long>();
+    test<std::atomic_llong, long long>();
+    test<std::atomic_ullong, unsigned long long>();
+#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
+    test<std::atomic_char16_t, char16_t>();
+    test<std::atomic_char32_t, char32_t>();
+#endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
+    test<std::atomic_wchar_t, wchar_t>();
+
+    test<volatile std::atomic_char, char>();
+    test<volatile std::atomic_schar, signed char>();
+    test<volatile std::atomic_uchar, unsigned char>();
+    test<volatile std::atomic_short, short>();
+    test<volatile std::atomic_ushort, unsigned short>();
+    test<volatile std::atomic_int, int>();
+    test<volatile std::atomic_uint, unsigned int>();
+    test<volatile std::atomic_long, long>();
+    test<volatile std::atomic_ulong, unsigned long>();
+    test<volatile std::atomic_llong, long long>();
+    test<volatile std::atomic_ullong, unsigned long long>();
+#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
+    test<volatile std::atomic_char16_t, char16_t>();
+    test<volatile std::atomic_char32_t, char32_t>();
+#endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
+    test<volatile std::atomic_wchar_t, wchar_t>();
+}
diff --git a/libcxx/test/atomics/atomics.types.generic/nothing_to_do.pass.cpp b/libcxx/test/atomics/atomics.types.generic/nothing_to_do.pass.cpp
deleted file mode 100644
index 9a59227abdd..00000000000
--- a/libcxx/test/atomics/atomics.types.generic/nothing_to_do.pass.cpp
+++ /dev/null
@@ -1,13 +0,0 @@
-// -*- C++ -*-
-//===----------------------------------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-int main()
-{
-}