1 ; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s
3 target 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"
5 @array = common global [1024 x i32] zeroinitializer, align 16
7 define void @array_at_plus_one(i32 %n) {
8 ; CHECK-LABEL: @array_at_plus_one(
9 ; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
10 ; CHECK: [[VEC_IV_TRUNC:%.+]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ [[VEC_IV_TRUNC_NEXT:%.+]], %vector.body ]
11 ; CHECK: [[T1:%.+]] = add i64 %index, 0
12 ; CHECK: [[T2:%.+]] = add nsw i64 [[T1]], 12
13 ; CHECK-NEXT: [[GEP:%.+]] = getelementptr inbounds [1024 x i32], [1024 x i32]* @array, i64 0, i64 [[T2]]
14 ; CHECK-NEXT: [[GEP0:%.+]] = getelementptr inbounds i32, i32* [[GEP]], i32 0
15 ; CHECK-NEXT: [[BC:%.+]] = bitcast i32* [[GEP0]] to <4 x i32>*
16 ; CHECK-NEXT: store <4 x i32> [[VEC_IV_TRUNC]], <4 x i32>* [[BC]]
17 ; CHECK: [[VEC_IV_TRUNC_NEXT]] = add <4 x i32> [[VEC_IV_TRUNC]], <i32 4, i32 4, i32 4, i32 4>
24 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
25 %iv.plus.12 = add nsw i64 %iv, 12
26 %gep = getelementptr inbounds [1024 x i32], [1024 x i32]* @array, i64 0, i64 %iv.plus.12
27 %iv.trunc = trunc i64 %iv to i32
28 store i32 %iv.trunc, i32* %gep, align 4
29 %iv.next = add i64 %iv, 1
30 %lftr.wideiv = trunc i64 %iv.next to i32
31 %exitcond = icmp eq i32 %lftr.wideiv, %n
32 br i1 %exitcond, label %exit, label %loop