1 ; RUN: llc -O2 -march=hexagon -fp-contract=fast -pipeliner-prune-loop-carried=false < %s | FileCheck %s
3 ; Test that there is 1 packet between the FP result and its use.
5 ; CHECK: loop0([[LOOP0:.LBB[0-9_]+]],
7 ; CHECK: [[REG0:(r[0-9]+)]] += sfmpy(r{{[0-9]+}},r{{[0-9]+}})
10 ; CHECK: r{{[0-9]+}} = {{.*}}[[REG0]]
12 ; Function Attrs: nounwind readnone
13 define void @f0(i32 %a0, i32 %a1) #0 {
15 %v0 = alloca [1000 x float], align 64
16 %v1 = alloca [1000 x float], align 64
17 %v2 = alloca [1000 x float], align 64
18 %v3 = alloca [1000 x float], align 64
19 call void @llvm.lifetime.start.p0(i64 4000, ptr %v0) #2
20 call void @llvm.lifetime.start.p0(i64 4000, ptr %v1) #2
21 call void @llvm.lifetime.start.p0(i64 4000, ptr %v2) #2
22 call void @llvm.lifetime.start.p0(i64 4000, ptr %v3) #2
23 %v8 = icmp sgt i32 %a1, 0
27 b1: ; preds = %b3, %b0
28 %v11 = phi i32 [ 0, %b0 ], [ %v34, %b3 ]
29 br i1 %v8, label %b2, label %b3
31 b2: ; preds = %b2, %b1
32 %v12 = phi ptr [ %v33, %b2 ], [ %v3, %b1 ]
33 %v13 = phi i32 [ %v31, %b2 ], [ 0, %b1 ]
34 %v14 = mul nsw i32 %v13, %a1
35 %v15 = add nsw i32 %v14, %v11
36 %v16 = getelementptr inbounds [1000 x float], ptr %v1, i32 0, i32 %v15
37 %v17 = load float, ptr %v16, align 4, !tbaa !0
38 %v18 = fmul float %v17, %v17
39 %v19 = mul nsw i32 %v13, 25
40 %v20 = add nsw i32 %v19, %v11
41 %v21 = getelementptr inbounds [1000 x float], ptr %v2, i32 0, i32 %v20
42 %v22 = load float, ptr %v21, align 4, !tbaa !0
43 %v23 = fmul float %v22, %v22
44 %v24 = fadd float %v18, %v23
45 %v25 = load float, ptr %v12, align 4, !tbaa !0
46 %v26 = fmul float %v25, %v25
47 %v27 = fadd float %v24, %v26
48 %v28 = getelementptr inbounds [1000 x float], ptr %v0, i32 0, i32 %v20
49 %v29 = load float, ptr %v28, align 4, !tbaa !0
50 %v30 = fadd float %v29, %v27
51 store float %v30, ptr %v28, align 4, !tbaa !0
52 %v31 = add nuw nsw i32 %v13, 1
53 %v32 = icmp eq i32 %v13, %v9
54 %v33 = getelementptr float, ptr %v12, i32 1
55 br i1 %v32, label %b3, label %b2
57 b3: ; preds = %b2, %b1
58 %v34 = add nuw nsw i32 %v11, 1
59 %v35 = icmp eq i32 %v34, 25
60 br i1 %v35, label %b4, label %b1
63 call void @llvm.lifetime.end.p0(i64 4000, ptr %v3) #2
64 call void @llvm.lifetime.end.p0(i64 4000, ptr %v2) #2
65 call void @llvm.lifetime.end.p0(i64 4000, ptr %v1) #2
66 call void @llvm.lifetime.end.p0(i64 4000, ptr %v0) #2
70 ; Function Attrs: argmemonly nounwind
71 declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1
73 ; Function Attrs: argmemonly nounwind
74 declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1
76 attributes #0 = { nounwind readnone "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
77 attributes #1 = { argmemonly nounwind }
78 attributes #2 = { nounwind }
81 !1 = !{!"float", !2, i64 0}
82 !2 = !{!"omnipotent char", !3, i64 0}
83 !3 = !{!"Simple C/C++ TBAA"}