1 ; RUN: opt -loop-accesses -analyze < %s | FileCheck %s
3 ; for (unsigned i = 0; i < 100; i++) {
8 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
10 define void @f(i32* %A, i32* %B, i32* %C, i64 %N) {
13 ; CHECK-NEXT: Forward:
14 ; CHECK-NEXT: store i32 %a_p1, i32* %Aidx_ahead, align 4 ->
15 ; CHECK-NEXT: %a = load i32, i32* %Aidx, align 4
20 for.body: ; preds = %for.body, %entry
21 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
22 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
24 %idx = add nuw nsw i64 %indvars.iv, 8
26 %Aidx_ahead = getelementptr inbounds i32, i32* %A, i64 %idx
27 %Bidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
28 %Cidx = getelementptr inbounds i32, i32* %C, i64 %indvars.iv
29 %Aidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
31 %b = load i32, i32* %Bidx, align 4
33 store i32 %a_p1, i32* %Aidx_ahead, align 4
35 %a = load i32, i32* %Aidx, align 4
37 store i32 %c, i32* %Cidx, align 4
39 %exitcond = icmp eq i64 %indvars.iv.next, %N
40 br i1 %exitcond, label %for.end, label %for.body
42 for.end: ; preds = %for.body