1; RUN: opt < %s -loop-vectorize -mtriple=aarch64-none-linux-gnu -mattr=+neon -S | FileCheck %s
2target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
3
4; Function Attrs: nounwind
5define i32* @array_add(i32* noalias nocapture readonly %a, i32* noalias nocapture readonly %b, i32* %c, i32 %size) {
6;CHECK-LABEL: array_add
7;CHECK: load <4 x i32>
8;CHECK: load <4 x i32>
9;CHECK: load <4 x i32>
10;CHECK: load <4 x i32>
11;CHECK: add nsw <4 x i32>
12;CHECK: add nsw <4 x i32>
13;CHECK: store <4 x i32>
14;CHECK: store <4 x i32>
15;CHECK: ret
16entry:
17  %cmp10 = icmp sgt i32 %size, 0
18  br i1 %cmp10, label %for.body.preheader, label %for.end
19
20for.body.preheader:                               ; preds = %entry
21  br label %for.body
22
23for.body:                                         ; preds = %for.body.preheader, %for.body
24  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
25  %arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv
26  %0 = load i32* %arrayidx, align 4
27  %arrayidx2 = getelementptr inbounds i32* %b, i64 %indvars.iv
28  %1 = load i32* %arrayidx2, align 4
29  %add = add nsw i32 %1, %0
30  %arrayidx4 = getelementptr inbounds i32* %c, i64 %indvars.iv
31  store i32 %add, i32* %arrayidx4, align 4
32  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
33  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
34  %exitcond = icmp eq i32 %lftr.wideiv, %size
35  br i1 %exitcond, label %for.end.loopexit, label %for.body
36
37for.end.loopexit:                                 ; preds = %for.body
38  br label %for.end
39
40for.end:                                          ; preds = %for.end.loopexit, %entry
41  ret i32* %c
42}
43