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