1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/arm/sync-1.c b/gcc/testsuite/gcc.target/arm/sync-1.c
new file mode 100644
index 000000000..ad85a04b3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/sync-1.c
@@ -0,0 +1,25 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -march=armv7-a" } */
+
+volatile int mem;
+
+int
+bar (int x, int y)
+{
+  if (x)
+    __sync_fetch_and_add(&mem, y);
+  return 0;
+}
+
+extern void abort (void);
+
+int
+main (int argc, char *argv[])
+{
+  mem = 0;
+  bar (0, 1);
+  bar (1, 1);
+  if (mem != 1)
+    abort ();
+  return 0;
+}