1; RUN: opt -loop-accesses -analyze < %s | FileCheck %s
2; RUN: opt -passes='require<scalar-evolution>,require<aa>,loop(print-access-info)' -disable-output  < %s 2>&1 | FileCheck %s
3
4;   for (unsigned i = 0; i < 100; i++) {
5;     A[i+8] = B[i] + 2;
6;     C[i] = A[i] * 2;
7;   }
8
9target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
10
11define void @f(i32* %A, i32* %B, i32* %C, i64 %N) {
12
13; CHECK: Dependences:
14; CHECK-NEXT: Forward:
15; CHECK-NEXT:   store i32 %a_p1, i32* %Aidx_ahead, align 4 ->
16; CHECK-NEXT:   %a = load i32, i32* %Aidx, align 4
17
18entry:
19  br label %for.body
20
21for.body:                                         ; preds = %for.body, %entry
22  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
23  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
24
25  %idx = add nuw nsw i64 %indvars.iv, 8
26
27  %Aidx_ahead = getelementptr inbounds i32, i32* %A, i64 %idx
28  %Bidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
29  %Cidx = getelementptr inbounds i32, i32* %C, i64 %indvars.iv
30  %Aidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
31
32  %b = load i32, i32* %Bidx, align 4
33  %a_p1 = add i32 %b, 2
34  store i32 %a_p1, i32* %Aidx_ahead, align 4
35
36  %a = load i32, i32* %Aidx, align 4
37  %c = mul i32 %a, 2
38  store i32 %c, i32* %Cidx, align 4
39
40  %exitcond = icmp eq i64 %indvars.iv.next, %N
41  br i1 %exitcond, label %for.end, label %for.body
42
43for.end:                                          ; preds = %for.body
44  ret void
45}
46