1; RUN: llc < %s -mtriple aarch64 -mcpu=falkor -disable-post-ra | FileCheck %s
2
3; Check that strided load tag collisions are avoided on Falkor.
4
5; CHECK-LABEL: hwpf1:
6; CHECK: ldp {{w[0-9]+}}, {{w[0-9]+}}, [x[[BASE:[0-9]+]], #-16]
7; CHECK: mov x[[BASE2:[0-9]+]], x[[BASE]]
8; CHECK: ldp {{w[0-9]+}}, {{w[0-9]+}}, [x[[BASE2]], #-8]
9; CHECK: ldp {{w[0-9]+}}, {{w[0-9]+}}, [x[[BASE3:[0-9]+]]]
10; CHECK: mov x[[BASE4:[0-9]+]], x[[BASE3]]
11; CHECK: ldp {{w[0-9]+}}, {{w[0-9]+}}, [x[[BASE4]], #8]
12
13define void @hwpf1(i32* %p, i32* %sp, i32* %sp2, i32* %sp3, i32* %sp4) {
14entry:
15  br label %loop
16
17loop:
18  %iv = phi i32 [ 0, %entry ], [ %inc, %loop ]
19
20  %gep = getelementptr inbounds i32, i32* %p, i32 %iv
21  %load1 = load i32, i32* %gep
22
23  %gep2 = getelementptr inbounds i32, i32* %gep, i32 1
24  %load2 = load i32, i32* %gep2
25
26  %add = add i32 %load1, %load2
27  %storegep = getelementptr inbounds i32, i32* %sp, i32 %iv
28  store i32 %add, i32* %storegep
29
30  %gep3 = getelementptr inbounds i32, i32* %gep, i32 2
31  %load3 = load i32, i32* %gep3
32
33  %gep4 = getelementptr inbounds i32, i32* %gep, i32 3
34  %load4 = load i32, i32* %gep4
35
36  %add2 = add i32 %load3, %load4
37  %storegep2 = getelementptr inbounds i32, i32* %sp2, i32 %iv
38  store i32 %add2, i32* %storegep2
39
40  %gep5 = getelementptr inbounds i32, i32* %gep, i32 4
41  %load5 = load i32, i32* %gep5
42
43  %gep6 = getelementptr inbounds i32, i32* %gep, i32 5
44  %load6 = load i32, i32* %gep6
45
46  %add3 = add i32 %load5, %load6
47  %storegep3 = getelementptr inbounds i32, i32* %sp3, i32 %iv
48  store i32 %add3, i32* %storegep3
49
50  %gep7 = getelementptr inbounds i32, i32* %gep, i32 6
51  %load7 = load i32, i32* %gep7
52
53  %gep8 = getelementptr inbounds i32, i32* %gep, i32 7
54  %load8 = load i32, i32* %gep8
55
56  %add4 = add i32 %load7, %load8
57  %storegep4 = getelementptr inbounds i32, i32* %sp4, i32 %iv
58  store i32 %add4, i32* %storegep4
59
60  %inc = add i32 %iv, 8
61  %exitcnd = icmp uge i32 %inc, 1024
62  br i1 %exitcnd, label %exit, label %loop
63
64exit:
65  ret void
66}
67
68