1 ; RUN: opt -mtriple=amdgcn-unknown-amdhsa -mcpu=hawaii -loop-unroll -S < %s | FileCheck %s
3 ; CHECK-LABEL: @test_unroll_convergent_barrier(
4 ; CHECK: call void @llvm.amdgcn.s.barrier()
5 ; CHECK: call void @llvm.amdgcn.s.barrier()
6 ; CHECK: call void @llvm.amdgcn.s.barrier()
7 ; CHECK: call void @llvm.amdgcn.s.barrier()
9 define amdgpu_kernel void @test_unroll_convergent_barrier(i32 addrspace(1)* noalias nocapture %out, i32 addrspace(1)* noalias nocapture %in) #0 {
13 for.body: ; preds = %for.body, %entry
14 %indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
15 %sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ]
16 %arrayidx.in = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 %indvars.iv
17 %arrayidx.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %indvars.iv
18 %load = load i32, i32 addrspace(1)* %arrayidx.in
19 call void @llvm.amdgcn.s.barrier() #1
20 %add = add i32 %load, %sum.02
21 store i32 %add, i32 addrspace(1)* %arrayidx.out
22 %indvars.iv.next = add i32 %indvars.iv, 1
23 %exitcond = icmp eq i32 %indvars.iv.next, 4
24 br i1 %exitcond, label %for.end, label %for.body
26 for.end: ; preds = %for.body, %entry
30 declare void @llvm.amdgcn.s.barrier() #1
32 attributes #0 = { nounwind }
33 attributes #1 = { nounwind convergent }