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-apple-macosx10.8.0"
5;CHECK-LABEL: @foo(
6;CHECK: fadd fast <4 x float>
7;CHECK: ret
8define float @foo(float* nocapture %A, i32* nocapture %n) nounwind uwtable readonly ssp {
9entry:
10  br label %for.body
11
12for.body:                                         ; preds = %for.body, %entry
13  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
14  %sum.04 = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ]
15  %arrayidx = getelementptr inbounds float* %A, i64 %indvars.iv
16  %0 = load float* %arrayidx, align 4
17  %add = fadd fast float %sum.04, %0
18  %indvars.iv.next = add i64 %indvars.iv, 1
19  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
20  %exitcond = icmp eq i32 %lftr.wideiv, 200
21  br i1 %exitcond, label %for.end, label %for.body
22
23for.end:                                          ; preds = %for.body
24  ret float %add
25}
26
27;CHECK-LABEL: @foosub(
28;CHECK: fsub fast <4 x float>
29;CHECK: ret
30define float @foosub(float* nocapture %A, i32* nocapture %n) nounwind uwtable readonly ssp {
31entry:
32  br label %for.body
33
34for.body:                                         ; preds = %for.body, %entry
35  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
36  %sum.04 = phi float [ 0.000000e+00, %entry ], [ %sub, %for.body ]
37  %arrayidx = getelementptr inbounds float* %A, i64 %indvars.iv
38  %0 = load float* %arrayidx, align 4
39  %sub = fsub fast float %sum.04, %0
40  %indvars.iv.next = add i64 %indvars.iv, 1
41  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
42  %exitcond = icmp eq i32 %lftr.wideiv, 200
43  br i1 %exitcond, label %for.end, label %for.body
44
45for.end:                                          ; preds = %for.body
46  ret float %sub
47}
48