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"
4;CHECK-LABEL: @foo(
5;CHECK: fadd fast <4 x float>
6;CHECK: ret
7define float @foo(float* nocapture %A, i32* nocapture %n) nounwind uwtable readonly ssp {
8entry:
9  br label %for.body
10
11for.body:                                         ; preds = %for.body, %entry
12  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
13  %sum.04 = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ]
14  %arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
15  %0 = load float, float* %arrayidx, align 4
16  %add = fadd fast float %sum.04, %0
17  %indvars.iv.next = add i64 %indvars.iv, 1
18  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
19  %exitcond = icmp eq i32 %lftr.wideiv, 200
20  br i1 %exitcond, label %for.end, label %for.body
21
22for.end:                                          ; preds = %for.body
23  ret float %add
24}
25
26;CHECK-LABEL: @foosub(
27;CHECK: fsub fast <4 x float>
28;CHECK: ret
29define float @foosub(float* nocapture %A, i32* nocapture %n) nounwind uwtable readonly ssp {
30entry:
31  br label %for.body
32
33for.body:                                         ; preds = %for.body, %entry
34  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
35  %sum.04 = phi float [ 0.000000e+00, %entry ], [ %sub, %for.body ]
36  %arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
37  %0 = load float, float* %arrayidx, align 4
38  %sub = fsub fast float %sum.04, %0
39  %indvars.iv.next = add i64 %indvars.iv, 1
40  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
41  %exitcond = icmp eq i32 %lftr.wideiv, 200
42  br i1 %exitcond, label %for.end, label %for.body
43
44for.end:                                          ; preds = %for.body
45  ret float %sub
46}
47