1 ; RUN: llc -march=hexagon -enable-pipeliner -stats -o /dev/null < %s 2>&1 -pipeliner-experimental-cg=true | FileCheck %s --check-prefix=STATS
4 ; STATS: 1 pipeliner - Number of loops software pipelined
6 ; Function Attrs: nounwind
7 define i64 @f0(i32 %a0, i32* %a1) #0 {
9 %v0 = icmp slt i32 %a0, 123469
10 br i1 %v0, label %b1, label %b4
15 b2: ; preds = %b2, %b1
16 %v1 = phi i64 [ undef, %b1 ], [ %v12, %b2 ]
17 %v2 = phi i64 [ undef, %b1 ], [ %v10, %b2 ]
18 %v3 = phi i32 [ 0, %b1 ], [ %v13, %b2 ]
19 %v4 = phi i32 [ undef, %b1 ], [ %v9, %b2 ]
20 %v5 = phi i64 [ undef, %b1 ], [ %v7, %b2 ]
21 %v6 = phi i64 [ undef, %b1 ], [ %v11, %b2 ]
22 %v7 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %v5, i64 %v6, i64 %v6)
23 %v8 = tail call i64 @llvm.hexagon.S2.packhl(i32 undef, i32 %v4)
24 %v9 = load i32, i32* %a1, align 4, !tbaa !0
25 %v10 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %v2, i64 %v6, i64 %v8)
26 %v11 = tail call i64 @llvm.hexagon.S2.packhl(i32 %v9, i32 undef)
27 %v12 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %v1, i64 %v6, i64 %v11)
28 %v13 = add nsw i32 %v3, 1
29 %v14 = icmp eq i32 %v13, undef
30 br i1 %v14, label %b3, label %b2
33 %v15 = lshr i64 %v12, 32
36 b4: ; preds = %b3, %b0
37 %v16 = phi i64 [ %v10, %b3 ], [ undef, %b0 ]
38 %v17 = phi i64 [ %v7, %b3 ], [ undef, %b0 ]
39 %v18 = add i64 %v16, %v17
43 ; Function Attrs: nounwind readnone
44 declare i64 @llvm.hexagon.M2.vdmacs.s0(i64, i64, i64) #1
46 ; Function Attrs: nounwind readnone
47 declare i64 @llvm.hexagon.S2.packhl(i32, i32) #1
49 attributes #0 = { nounwind "target-cpu"="hexagonv55" }
50 attributes #1 = { nounwind readnone }
54 !2 = !{!"omnipotent char", !3}
55 !3 = !{!"Simple C/C++ TBAA"}