1 files changed, 46 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-exchange-3.c b/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-exchange-3.c
new file mode 100644
index 000000000..a62c57187
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/atomic/stdatomic-exchange-3.c
@@ -0,0 +1,46 @@
+/* Test atomic_exchange routines for existence and proper execution on
+   4-byte values with each valid memory model.  */
+/* { dg-do run } */
+/* { dg-options "-std=c11 -pedantic-errors" } */
+
+#include <stdatomic.h>
+
+extern void abort (void);
+
+_Atomic int v;
+int count, ret;
+
+int
+main ()
+{
+  v = 0;
+  count = 0;
+
+  if (atomic_exchange_explicit (&v, count + 1, memory_order_relaxed) != count)
+    abort ();
+  count++;
+
+  if (atomic_exchange_explicit (&v, count + 1, memory_order_acquire) != count)
+    abort ();
+  count++;
+
+  if (atomic_exchange_explicit (&v, count + 1, memory_order_release) != count)
+    abort ();
+  count++;
+
+  if (atomic_exchange_explicit (&v, count + 1, memory_order_acq_rel) != count)
+    abort ();
+  count++;
+
+  if (atomic_exchange_explicit (&v, count + 1, memory_order_seq_cst) != count)
+    abort ();
+  count++;
+
+  count++;
+
+  ret = atomic_exchange (&v, count);
+  if (ret != count - 1 || v != count)
+    abort ();
+
+  return 0;
+}