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; 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.amdgcn.workitem.id.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.amdgcn.workitem.id.x() #2
declare i32 @llvm.r600.read.local.size.x() #2
attributes #0 = { nounwind }
attributes #1 = { convergent nounwind }
attributes #2 = { nounwind readnone }
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