1; REQUIRES: asserts
2; RUN: llc -march=hexagon -enable-pipeliner -o /dev/null < %s
3; Test that we do not crash when running CopyToPhi DAG mutation due to
4; iterator invalidation.
5
6declare i64 @llvm.hexagon.M2.cmacsc.s0(i64, i32, i32) #0
7define dso_local void @foo() local_unnamed_addr #1 {
8entry:
9  br label %for.body
10for.body:                                         ; preds = %for.body, %entry
11  %loop_count.0420 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
12  %tmp_rslt4.sroa.0.0415 = phi i64 [ 0, %entry ], [ %phitmp395, %for.body ]
13  %tmp_rslt4.sroa.14.0414 = phi i64 [ 0, %entry ], [ %phitmp394, %for.body ]
14  %tmp_rslt3.sroa.12.0412 = phi i64 [ 0, %entry ], [ %phitmp391, %for.body ]
15  %tmp_rslt3.sroa.0.0.insert.insert = or i64 0, %tmp_rslt3.sroa.12.0412
16  %0 = tail call i64 @llvm.hexagon.M2.cmacsc.s0(i64 %tmp_rslt3.sroa.0.0.insert.insert, i32 undef, i32 undef)
17  %tmp_rslt4.sroa.0.0.insert.insert = or i64 %tmp_rslt4.sroa.0.0415, %tmp_rslt4.sroa.14.0414
18  %1 = tail call i64 @llvm.hexagon.M2.cmacsc.s0(i64 %tmp_rslt4.sroa.0.0.insert.insert, i32 undef, i32 undef)
19  %inc = add nuw nsw i32 %loop_count.0420, 1
20  %phitmp391 = and i64 %0, -4294967296
21  %phitmp394 = and i64 %1, -4294967296
22  %phitmp395 = and i64 %1, 4294967295
23  %exitcond = icmp eq i32 %inc, 63
24  br i1 %exitcond, label %for.end, label %for.body
25
26for.end:                                          ; preds = %for.body
27  %2 = tail call i64 @llvm.hexagon.M2.cmacsc.s0(i64 %0, i32 undef, i32 undef)
28  ret void
29}
30
31attributes #0 = { nounwind readnone }
32attributes #1 = { "target-features"="-long-calls,-small-data" }
33