Implement barrier() builtin

Reviewed and Tested-by: Aaron Watry <awatry@gmail.com>

git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@185837 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 15 insertions, 0 deletions

diff --git a/r600/lib/synchronization/barrier.cl b/r600/lib/synchronization/barrier.cl
new file mode 100644
index 0000000..ac0b4b3
--- /dev/null
+++ b/r600/lib/synchronization/barrier.cl
@@ -0,0 +1,15 @@
+
+#include <clc/clc.h>
+
+void barrier_local(void);
+void barrier_global(void);
+
+void barrier(cl_mem_fence_flags flags) {
+  if (flags & CLK_LOCAL_MEM_FENCE) {
+    barrier_local();
+  }
+
+  if (flags & CLK_GLOBAL_MEM_FENCE) {
+    barrier_global();
+  }
+}