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1; RUN: opt < %s  -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -enable-if-conversion -dce -instcombine -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-macosx10.9.0"
5
6;CHECK: @reduction_func
7;CHECK-NOT: load <4 x i32>
8;CHECK: ret i32
9define i32 @reduction_func(i32* nocapture %A, i32 %n) nounwind uwtable readonly ssp {
10entry:
11  %cmp10 = icmp sgt i32 %n, 0
12  br i1 %cmp10, label %for.body, label %for.end
13
14for.body:                                         ; preds = %entry, %for.inc
15  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
16  %sum.011 = phi i32 [ %sum.1, %for.inc ], [ 0, %entry ]
17  %arrayidx = getelementptr inbounds i32* %A, i64 %indvars.iv
18  %0 = load i32* %arrayidx, align 4
19  %cmp1 = icmp sgt i32 %0, 30
20  br i1 %cmp1, label %if.then, label %for.inc
21
22if.then:                                          ; preds = %for.body
23  %add = add i32 %sum.011, 2
24  %add4 = add i32 %add, %0
25  br label %for.inc
26
27for.inc:                                          ; preds = %for.body, %if.then
28  %sum.1 = phi i32 [ %add4, %if.then ], [ %sum.011, %for.body ]
29  %indvars.iv.next = add i64 %indvars.iv, 1
30  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
31  %exitcond = icmp eq i32 %lftr.wideiv, %n
32  br i1 %exitcond, label %for.end, label %for.body
33
34for.end:                                          ; preds = %for.inc, %entry
35  %sum.0.lcssa = phi i32 [ 0, %entry ], [ 4, %for.inc ]
36  ret i32 %sum.0.lcssa
37}
38
39