1 ; RUN: llc -march=hexagon -enable-pipeliner < %s
4 ; Test that causes an assert when the phi reuse code does not set
5 ; PhiOp2 correctly for use in the next stage. This occurs when the
6 ; number of stages is two or more.
8 ; Function Attrs: nounwind
9 define void @f0(i16* noalias nocapture %a0) #0 {
11 br i1 undef, label %b1, label %b3
14 %v0 = bitcast i16* %a0 to <16 x i32>*
17 b2: ; preds = %b2, %b1
18 %v1 = phi i32 [ 0, %b1 ], [ %v15, %b2 ]
19 %v2 = phi <16 x i32>* [ %v0, %b1 ], [ %v14, %b2 ]
20 %v3 = phi <16 x i32>* [ undef, %b1 ], [ %v6, %b2 ]
21 %v4 = phi <16 x i32> [ undef, %b1 ], [ %v10, %b2 ]
22 %v5 = phi <16 x i32> [ undef, %b1 ], [ %v4, %b2 ]
23 %v6 = getelementptr inbounds <16 x i32>, <16 x i32>* %v3, i32 1
24 %v7 = load <16 x i32>, <16 x i32>* %v3, align 64
25 %v8 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> undef, <16 x i32> %v7)
26 %v9 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v4, <16 x i32> %v5, i32 62)
27 %v10 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v8, <16 x i32> undef)
28 %v11 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v10, <16 x i32> %v4, i32 2)
29 %v12 = tail call <16 x i32> @llvm.hexagon.V6.vabsdiffh(<16 x i32> %v9, <16 x i32> %v11)
30 %v13 = getelementptr inbounds <16 x i32>, <16 x i32>* %v2, i32 1
31 store <16 x i32> %v12, <16 x i32>* %v2, align 64
32 %v14 = getelementptr inbounds <16 x i32>, <16 x i32>* %v2, i32 2
33 store <16 x i32> zeroinitializer, <16 x i32>* %v13, align 64
34 %v15 = add nsw i32 %v1, 1
35 %v16 = icmp slt i32 %v15, undef
36 br i1 %v16, label %b2, label %b3
38 b3: ; preds = %b2, %b0
42 ; Function Attrs: nounwind readnone
43 declare <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32>, <16 x i32>) #1
45 ; Function Attrs: nounwind readnone
46 declare <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32>, <16 x i32>, i32) #1
48 ; Function Attrs: nounwind readnone
49 declare <16 x i32> @llvm.hexagon.V6.vabsdiffh(<16 x i32>, <16 x i32>) #1
51 attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
52 attributes #1 = { nounwind readnone }