1 ; RUN: llc -march=hexagon -verify-machineinstrs < %s
4 ; Test that we constrain the new register operands for instructions
5 ; to be the same as the register class of the original instruction.
6 ; In this case, the register class of a valign scalar operand changed
7 ; from IntRegsLow8 to IntRegs, which is incorrect.
9 ; Function Attrs: nounwind
10 define void @f0() #0 {
12 br i1 undef, label %b1, label %b6
17 b2: ; preds = %b4, %b1
18 %v0 = phi <16 x i32> [ undef, %b1 ], [ %v17, %b4 ]
21 b3: ; preds = %b3, %b2
22 %v1 = phi i32 [ 0, %b2 ], [ %v19, %b3 ]
23 %v2 = phi i32 [ undef, %b2 ], [ %v18, %b3 ]
24 %v3 = phi <16 x i32> [ %v0, %b2 ], [ %v17, %b3 ]
25 %v4 = tail call i32 @llvm.hexagon.A2.combine.ll(i32 0, i32 0)
26 %v5 = tail call <16 x i32> @llvm.hexagon.V6.vlalignb(<16 x i32> undef, <16 x i32> undef, i32 %v2)
27 %v6 = tail call <16 x i32> @llvm.hexagon.V6.vabsdiffuh(<16 x i32> %v5, <16 x i32> undef)
28 %v7 = tail call <32 x i32> @llvm.hexagon.V6.vmpyuhv(<16 x i32> %v6, <16 x i32> %v6)
29 %v8 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %v7)
30 %v9 = tail call <16 x i32> @llvm.hexagon.V6.vlsrw(<16 x i32> %v8, i32 17)
31 %v10 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwb(<16 x i32> %v9, i32 151587081)
32 %v11 = tail call <16 x i32> @llvm.hexagon.V6.vsatwh(<16 x i32> %v10, <16 x i32> undef)
33 %v12 = tail call <16 x i32> @llvm.hexagon.V6.vsubuhsat(<16 x i32> undef, <16 x i32> %v11)
34 %v13 = tail call <16 x i32> @llvm.hexagon.V6.vmaxh(<16 x i32> %v12, <16 x i32> undef)
35 %v14 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh(<16 x i32> %v13, i32 %v4)
36 %v15 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh(<16 x i32> undef, i32 %v4)
37 %v16 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v14, <16 x i32> %v15)
38 %v17 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v3, <16 x i32> %v16)
39 %v18 = add nsw i32 %v2, -2
40 %v19 = add nsw i32 %v1, 1
41 %v20 = icmp eq i32 %v19, 2
42 br i1 %v20, label %b4, label %b3
45 br i1 undef, label %b5, label %b2
54 ; Function Attrs: nounwind readnone
55 declare i32 @llvm.hexagon.A2.combine.ll(i32, i32) #1
57 ; Function Attrs: nounwind readnone
58 declare <16 x i32> @llvm.hexagon.V6.hi(<32 x i32>) #1
60 ; Function Attrs: nounwind readnone
61 declare <16 x i32> @llvm.hexagon.V6.vlalignb(<16 x i32>, <16 x i32>, i32) #1
63 ; Function Attrs: nounwind readnone
64 declare <16 x i32> @llvm.hexagon.V6.vabsdiffuh(<16 x i32>, <16 x i32>) #1
66 ; Function Attrs: nounwind readnone
67 declare <32 x i32> @llvm.hexagon.V6.vmpyuhv(<16 x i32>, <16 x i32>) #1
69 ; Function Attrs: nounwind readnone
70 declare <16 x i32> @llvm.hexagon.V6.vlsrw(<16 x i32>, i32) #1
72 ; Function Attrs: nounwind readnone
73 declare <16 x i32> @llvm.hexagon.V6.vsatwh(<16 x i32>, <16 x i32>) #1
75 ; Function Attrs: nounwind readnone
76 declare <16 x i32> @llvm.hexagon.V6.vmpyiwb(<16 x i32>, i32) #1
78 ; Function Attrs: nounwind readnone
79 declare <16 x i32> @llvm.hexagon.V6.vsubuhsat(<16 x i32>, <16 x i32>) #1
81 ; Function Attrs: nounwind readnone
82 declare <16 x i32> @llvm.hexagon.V6.vmaxh(<16 x i32>, <16 x i32>) #1
84 ; Function Attrs: nounwind readnone
85 declare <16 x i32> @llvm.hexagon.V6.vmpyiwh(<16 x i32>, i32) #1
87 ; Function Attrs: nounwind readnone
88 declare <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32>, <16 x i32>) #1
90 attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" }
91 attributes #1 = { nounwind readnone }