1; RUN: opt < %s -loop-vectorize -S 2>&1 | FileCheck %s
2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
3target triple = "x86_64-unknown-linux-gnu"
4
5; This test makes sure we don't duplicate the loop vectorizer's metadata
6; while marking them as already vectorized (by setting width = 1), even
7; at lower optimization levels, where no extra cleanup is done
8
9define void @_Z3fooPf(float* %a) {
10entry:
11  br label %for.body
12
13for.body:                                         ; preds = %for.body, %entry
14  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
15  %arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
16  %p = load float, float* %arrayidx, align 4
17  %mul = fmul float %p, 2.000000e+00
18  store float %mul, float* %arrayidx, align 4
19  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
20  %exitcond = icmp eq i64 %indvars.iv.next, 1024
21  br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
22
23for.end:                                          ; preds = %for.body
24  ret void
25}
26
27!0 = !{!0, !1}
28!1 = !{!"llvm.loop.vectorize.width", i32 4}
29; CHECK-NOT: !{metadata !"llvm.loop.vectorize.width", i32 4}
30; CHECK: !{!"llvm.loop.interleave.count", i32 1}
31