1 ; RUN: llc -march=hexagon -enable-pipeliner -pipeliner-max-stages=2 < %s | FileCheck %s
3 ; Test that we generate the correct offsets after we removed unneeded
4 ; chain dependences between Phis and generated a better pipeline.
6 ; CHECK: loop0(.LBB0_[[LOOP:.]],
7 ; CHECK: .LBB0_[[LOOP]]:
8 ; CHECK: = memd([[REG0:(r[0-9]+)]]+#8)
9 ; CHECK: memd([[REG0]]++#8) =
10 ; CHECK: }{{[ \t]*}}:endloop0
12 @g0 = common global [400 x i8] zeroinitializer, align 8
13 @g1 = common global [400 x i8] zeroinitializer, align 8
15 ; Function Attrs: nounwind
16 define void @f0() #0 {
23 b2: ; preds = %b2, %b0
24 %v0 = phi i8* [ getelementptr inbounds ([400 x i8], [400 x i8]* @g0, i32 0, i32 0), %b0 ], [ %v23, %b2 ]
25 %v1 = phi i8* [ getelementptr inbounds ([400 x i8], [400 x i8]* @g1, i32 0, i32 0), %b0 ], [ %v24, %b2 ]
26 %v2 = phi i32 [ 0, %b0 ], [ %v21, %b2 ]
27 %v3 = bitcast i8* %v0 to <8 x i8>*
28 %v4 = load <8 x i8>, <8 x i8>* %v3, align 8
29 %v5 = bitcast i8* %v1 to <8 x i8>*
30 %v6 = load <8 x i8>, <8 x i8>* %v5, align 8
31 %v7 = bitcast <8 x i8> %v4 to <2 x i32>
32 %v8 = extractelement <2 x i32> %v7, i32 0
33 %v9 = extractelement <2 x i32> %v7, i32 1
34 %v10 = bitcast <8 x i8> %v6 to <2 x i32>
35 %v11 = extractelement <2 x i32> %v10, i32 0
36 %v12 = extractelement <2 x i32> %v10, i32 1
37 %v13 = tail call i64 @llvm.hexagon.S2.vzxtbh(i32 %v11)
38 %v14 = tail call i64 @llvm.hexagon.S2.vzxtbh(i32 %v12)
39 %v15 = tail call i64 @llvm.hexagon.M5.vmacbsu(i64 %v13, i32 %v8, i32 117901063)
40 %v16 = tail call i64 @llvm.hexagon.M5.vmacbsu(i64 %v14, i32 %v9, i32 117901063)
41 %v17 = tail call i32 @llvm.hexagon.S2.vtrunehb(i64 %v15)
42 %v18 = tail call i32 @llvm.hexagon.S2.vtrunehb(i64 %v16)
43 %v19 = tail call i64 @llvm.hexagon.A2.combinew(i32 %v18, i32 %v17)
44 %v20 = bitcast i64 %v19 to <8 x i8>
45 store <8 x i8> %v20, <8 x i8>* %v5, align 8
46 %v21 = add nsw i32 %v2, 8
47 %v22 = icmp slt i32 %v2, 392
48 %v23 = getelementptr i8, i8* %v0, i32 8
49 %v24 = getelementptr i8, i8* %v1, i32 8
50 br i1 %v22, label %b2, label %b1
53 ; Function Attrs: nounwind readnone
54 declare i64 @llvm.hexagon.S2.vzxtbh(i32) #1
56 ; Function Attrs: nounwind readnone
57 declare i64 @llvm.hexagon.M5.vmacbsu(i64, i32, i32) #1
59 ; Function Attrs: nounwind readnone
60 declare i32 @llvm.hexagon.S2.vtrunehb(i64) #1
62 ; Function Attrs: nounwind readnone
63 declare i64 @llvm.hexagon.A2.combinew(i32, i32) #1
65 attributes #0 = { nounwind }
66 attributes #1 = { nounwind readnone }