1 ; RUN: opt %loadPolly -polly-detect-unprofitable -polly-scops -analyze < %s | FileCheck %s
3 ; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
4 ; CHECK: [N] -> { Stmt_for_body[i0] -> MemRef_A[o0] : (N >= 0 and 5o0 >= -4 + N + 5i0 and 5o0 <= N + 5i0) or (N <= -1 and 5o0 >= N + 5i0 and 5o0 <= 4 + N + 5i0) };
5 ; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
6 ; CHECK: [N] -> { Stmt_for_body[i0] -> MemRef_A[o0] : (N <= 0 and 5o0 <= -N + 5i0 and 5o0 >= -4 - N + 5i0) or (N >= 1 and 5o0 <= 4 - N + 5i0 and 5o0 >= -N + 5i0) };
8 ; void f(int *A, int N) {
9 ; for (int i = 0; i < N; i++)
10 ; A[i] = A[i + (N / 5)] + A[i + (N / -5)];
13 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
15 define void @f(i32* %A, i32 %N) {
17 %tmp = sext i32 %N to i64
20 for.cond: ; preds = %for.inc, %entry
21 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
22 %cmp = icmp slt i64 %indvars.iv, %tmp
23 br i1 %cmp, label %for.body, label %for.end
25 for.body: ; preds = %for.cond
27 %tmp1 = trunc i64 %indvars.iv to i32
28 %add = add nsw i32 %tmp1, %div
29 %idxprom = sext i32 %add to i64
30 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom
31 %tmp2 = load i32* %arrayidx, align 4
32 %div1 = sdiv i32 %N, -5
33 %tmp3 = trunc i64 %indvars.iv to i32
34 %add2 = add nsw i32 %tmp3, %div1
35 %idxprom3 = sext i32 %add2 to i64
36 %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %idxprom3
37 %tmp4 = load i32* %arrayidx4, align 4
38 %add5 = add nsw i32 %tmp2, %tmp4
39 %arrayidx7 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
40 store i32 %add5, i32* %arrayidx7, align 4
43 for.inc: ; preds = %for.body
44 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
47 for.end: ; preds = %for.cond