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      1 ; RUN: opt < %s  -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
      2 
      3 ; rdar://problem/12848162
      4 
      5 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"
      6 target triple = "x86_64-apple-macosx10.8.0"
      7 
      8 @a = common global [2048 x i32] zeroinitializer, align 16
      9 
     10 ;CHECK-LABEL: @example12(
     11 ;CHECK: trunc i64
     12 ;CHECK: store <4 x i32>
     13 ;CHECK: ret void
     14 define void @example12() nounwind uwtable ssp {
     15   br label %1
     16 
     17 ; <label>:1                                       ; preds = %1, %0
     18   %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
     19   %2 = getelementptr inbounds [2048 x i32]* @a, i64 0, i64 %indvars.iv
     20   %3 = trunc i64 %indvars.iv to i32
     21   store i32 %3, i32* %2, align 4
     22   %indvars.iv.next = add i64 %indvars.iv, 1
     23   %lftr.wideiv = trunc i64 %indvars.iv.next to i32
     24   %exitcond = icmp eq i32 %lftr.wideiv, 1024
     25   br i1 %exitcond, label %4, label %1
     26 
     27 ; <label>:4                                       ; preds = %1
     28   ret void
     29 }
     30 
     31