1; RUN: llc -march=hexagon < %s
2; REQUIRES: asserts
3
4; Function Attrs: nounwind
5define void @f0(i32 %a0) #0 {
6b0:
7  %v0 = ashr i32 %a0, 1
8  br label %b1
9
10b1:                                               ; preds = %b1, %b0
11  %v1 = phi i32 [ %v17, %b1 ], [ undef, %b0 ]
12  %v2 = phi i32 [ %v19, %b1 ], [ 0, %b0 ]
13  %v3 = phi i32 [ %v4, %b1 ], [ undef, %b0 ]
14  %v4 = phi i32 [ %v14, %b1 ], [ undef, %b0 ]
15  %v5 = phi i32 [ %v18, %b1 ], [ undef, %b0 ]
16  %v6 = tail call i64 @llvm.hexagon.A2.combinew(i32 %v1, i32 undef)
17  %v7 = tail call i64 @llvm.hexagon.A2.combinew(i32 %v3, i32 %v3)
18  %v8 = tail call i64 @llvm.hexagon.S2.valignib(i64 %v6, i64 undef, i32 2)
19  %v9 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 undef, i64 %v7, i64 %v8)
20  %v10 = inttoptr i32 %v5 to i16*
21  %v11 = load i16, i16* %v10, align 2
22  %v12 = sext i16 %v11 to i32
23  %v13 = add nsw i32 %v5, -8
24  %v14 = tail call i32 @llvm.hexagon.A2.combine.ll(i32 %v12, i32 %v1)
25  %v15 = inttoptr i32 %v13 to i16*
26  %v16 = load i16, i16* %v15, align 2
27  %v17 = sext i16 %v16 to i32
28  %v18 = add nsw i32 %v5, -16
29  %v19 = add nsw i32 %v2, 1
30  %v20 = icmp eq i32 %v19, %v0
31  br i1 %v20, label %b2, label %b1
32
33b2:                                               ; preds = %b1
34  %v21 = phi i64 [ %v9, %b1 ]
35  %v22 = trunc i64 %v21 to i32
36  %v23 = bitcast i8* undef to i32*
37  store i32 %v22, i32* %v23, align 4
38  call void @llvm.trap()
39  unreachable
40}
41
42; Function Attrs: nounwind readnone
43declare i32 @llvm.hexagon.A2.combine.ll(i32, i32) #1
44
45; Function Attrs: nounwind readnone
46declare i64 @llvm.hexagon.A2.combinew(i32, i32) #1
47
48; Function Attrs: nounwind readnone
49declare i64 @llvm.hexagon.M2.vdmacs.s0(i64, i64, i64) #1
50
51; Function Attrs: nounwind readnone
52declare i64 @llvm.hexagon.S2.valignib(i64, i64, i32) #1
53
54; Function Attrs: noreturn nounwind
55declare void @llvm.trap() #2
56
57attributes #0 = { nounwind "target-cpu"="hexagonv60" }
58attributes #1 = { nounwind readnone }
59attributes #2 = { noreturn nounwind }
60