--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/AMDGPU/llvm.amdgcn.s.barrier.ll	Tue Jan 26 22:53:40 2016 +0900
@@ -0,0 +1,28 @@
+; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
+
+; GCN-LABEL: {{^}}test_barrier:
+; GCN: buffer_store_dword
+; GCN: s_waitcnt
+; GCN: s_barrier
+define void @test_barrier(i32 addrspace(1)* %out) #0 {
+entry:
+  %tmp = call i32 @llvm.r600.read.tidig.x()
+  %tmp1 = getelementptr i32, i32 addrspace(1)* %out, i32 %tmp
+  store i32 %tmp, i32 addrspace(1)* %tmp1
+  call void @llvm.amdgcn.s.barrier()
+  %tmp2 = call i32 @llvm.r600.read.local.size.x()
+  %tmp3 = sub i32 %tmp2, 1
+  %tmp4 = sub i32 %tmp3, %tmp
+  %tmp5 = getelementptr i32, i32 addrspace(1)* %out, i32 %tmp4
+  %tmp6 = load i32, i32 addrspace(1)* %tmp5
+  store i32 %tmp6, i32 addrspace(1)* %tmp1
+  ret void
+}
+
+declare void @llvm.amdgcn.s.barrier() #1
+declare i32 @llvm.r600.read.tidig.x() #2
+declare i32 @llvm.r600.read.local.size.x() #2
+
+attributes #0 = { nounwind }
+attributes #1 = { convergent nounwind }
+attributes #2 = { nounwind readnone }