1; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s
2
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4target triple = "x86_64-apple-macosx10.8.0"
5
6@array = common global [1024 x i32] zeroinitializer, align 16
7
8;CHECK-LABEL: @array_at_plus_one(
9;CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
10;CHECK: %vec.ind = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %vector.ph ], [ %vec.ind.next, %vector.body ]
11;CHECK: %vec.ind1 = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ %vec.ind.next2, %vector.body ]
12;CHECK: %[[T1:.+]] = add i64 %index, 0
13;CHECK: %[[T2:.+]] = add nsw i64 %[[T1]], 12
14;CHECK: getelementptr inbounds [1024 x i32], [1024 x i32]* @array, i64 0, i64 %[[T2]]
15;CHECK: %vec.ind.next = add <4 x i64> %vec.ind, <i64 4, i64 4, i64 4, i64 4>
16;CHECK: %vec.ind.next2 = add <4 x i32> %vec.ind1, <i32 4, i32 4, i32 4, i32 4>
17;CHECK: ret i32
18define i32 @array_at_plus_one(i32 %n) nounwind uwtable ssp {
19  %1 = icmp sgt i32 %n, 0
20  br i1 %1, label %.lr.ph, label %._crit_edge
21
22.lr.ph:                                           ; preds = %0, %.lr.ph
23  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
24  %2 = add nsw i64 %indvars.iv, 12
25  %3 = getelementptr inbounds [1024 x i32], [1024 x i32]* @array, i64 0, i64 %2
26  %4 = trunc i64 %indvars.iv to i32
27  store i32 %4, i32* %3, align 4
28  %indvars.iv.next = add i64 %indvars.iv, 1
29  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
30  %exitcond = icmp eq i32 %lftr.wideiv, %n
31  br i1 %exitcond, label %._crit_edge, label %.lr.ph
32
33._crit_edge:                                      ; preds = %.lr.ph, %0
34  ret i32 undef
35}
36