1; RUN: opt < %s  -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -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-unknown-linux-gnu"
5
6;CHECK-LABEL: @foo(
7;CHECK-NOT: <4 x i32>
8;CHECK: ret void
9
10; Function Attrs: nounwind uwtable
11define void @foo(i32* nocapture %a, i32* nocapture %b, i32 %k, i32 %m) #0 {
12entry:
13  %cmp27 = icmp sgt i32 %m, 0
14  br i1 %cmp27, label %for.body3.lr.ph.us, label %for.end15
15
16for.end.us:                                       ; preds = %for.body3.us
17  %arrayidx9.us = getelementptr inbounds i32, i32* %b, i64 %indvars.iv33
18  %0 = load i32, i32* %arrayidx9.us, align 4, !llvm.mem.parallel_loop_access !3
19  %add10.us = add nsw i32 %0, 3
20  store i32 %add10.us, i32* %arrayidx9.us, align 4, !llvm.mem.parallel_loop_access !3
21  %indvars.iv.next34 = add i64 %indvars.iv33, 1
22  %lftr.wideiv35 = trunc i64 %indvars.iv.next34 to i32
23  %exitcond36 = icmp eq i32 %lftr.wideiv35, %m
24  br i1 %exitcond36, label %for.end15, label %for.body3.lr.ph.us, !llvm.loop !5
25
26for.body3.us:                                     ; preds = %for.body3.us, %for.body3.lr.ph.us
27  %indvars.iv29 = phi i64 [ 0, %for.body3.lr.ph.us ], [ %indvars.iv.next30, %for.body3.us ]
28  %1 = trunc i64 %indvars.iv29 to i32
29  %add4.us = add i32 %add.us, %1
30  %idxprom.us = sext i32 %add4.us to i64
31  %arrayidx.us = getelementptr inbounds i32, i32* %a, i64 %idxprom.us
32  %2 = load i32, i32* %arrayidx.us, align 4, !llvm.mem.parallel_loop_access !3
33  %add5.us = add nsw i32 %2, 1
34  store i32 %add5.us, i32* %arrayidx7.us, align 4, !llvm.mem.parallel_loop_access !3
35  %indvars.iv.next30 = add i64 %indvars.iv29, 1
36  %lftr.wideiv31 = trunc i64 %indvars.iv.next30 to i32
37  %exitcond32 = icmp eq i32 %lftr.wideiv31, %m
38  br i1 %exitcond32, label %for.end.us, label %for.body3.us, !llvm.loop !4
39
40for.body3.lr.ph.us:                               ; preds = %for.end.us, %entry
41  %indvars.iv33 = phi i64 [ %indvars.iv.next34, %for.end.us ], [ 0, %entry ]
42  %3 = trunc i64 %indvars.iv33 to i32
43  %add.us = add i32 %3, %k
44  %arrayidx7.us = getelementptr inbounds i32, i32* %a, i64 %indvars.iv33
45  br label %for.body3.us
46
47for.end15:                                        ; preds = %for.end.us, %entry
48  ret void
49}
50
51attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
52
53!3 = !{!4, !5}
54!4 = !{!4}
55!5 = !{!5}
56
57