48 lines
2.0 KiB
LLVM
48 lines
2.0 KiB
LLVM
; RUN: opt < %s -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -instcombine -S | FileCheck %s
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "arm64-apple-ios5.0.0"
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; CHECK-LABEL: @foo(
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define void @foo(float* noalias %a, float* noalias %b, float* noalias %c, i32 %N) {
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entry:
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%cmp.4 = icmp sgt i32 %N, 0
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br i1 %cmp.4, label %for.body.preheader, label %for.end
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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; Check that we don't lose !nontemporal hint when vectorizing loads.
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; CHECK: %wide.load{{[0-9]*}} = load <4 x float>, <4 x float>* %{{[0-9]+}}, align 4, !nontemporal !0
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%arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv
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%0 = load float, float* %arrayidx, align 4, !nontemporal !0
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; Check that we don't introduce !nontemporal hint when the original scalar loads didn't have it.
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; CHECK: %wide.load{{[0-9]+}} = load <4 x float>, <4 x float>* %{{[0-9]+}}, align 4{{$}}
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%arrayidx2 = getelementptr inbounds float, float* %c, i64 %indvars.iv
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%1 = load float, float* %arrayidx2, align 4
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%add = fadd float %0, %1
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; Check that we don't lose !nontemporal hint when vectorizing stores.
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; CHECK: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 4, !nontemporal !0
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%arrayidx4 = getelementptr inbounds float, float* %a, i64 %indvars.iv
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store float %add, float* %arrayidx4, align 4, !nontemporal !0
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, %N
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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; CHECK: ret void
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ret void
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}
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!0 = !{i32 1}
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