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1; RUN: opt -passes=loop-vectorize,dce,instcombine -mtriple aarch64-linux-gnu -S < %s | FileCheck %s2 3target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"4target triple = "aarch64-unknown-linux-gnu"5 6define void @inv_store_last_lane(ptr noalias nocapture %a, ptr noalias nocapture %inv, ptr noalias nocapture readonly %b, i64 %n) #0 {7; CHECK-LABEL: @inv_store_last_lane8; CHECK: vector.body:9; CHECK: store <vscale x 4 x i32> %[[VEC_VAL:.*]], ptr10; CHECK: middle.block:11; CHECK: %[[VSCALE:.*]] = call i32 @llvm.vscale.i32()12; CHECK-NEXT: %[[VSCALE2:.*]] = shl nuw i32 %[[VSCALE]], 213; CHECK-NEXT: %[[LAST_LANE:.*]] = add i32 %[[VSCALE2]], -114; CHECK-NEXT: %{{.*}} = extractelement <vscale x 4 x i32> %[[VEC_VAL]], i32 %[[LAST_LANE]]15 16entry:17 br label %for.body18 19for.body: ; preds = %for.body.lr.ph, %for.body20 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]21 %arrayidx = getelementptr inbounds i32, ptr %b, i64 %indvars.iv22 %0 = load i32, ptr %arrayidx, align 423 %mul = shl nsw i32 %0, 124 %arrayidx2 = getelementptr inbounds i32, ptr %a, i64 %indvars.iv25 store i32 %mul, ptr %arrayidx2, align 426 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 127 %exitcond.not = icmp eq i64 %indvars.iv.next, %n28 br i1 %exitcond.not, label %exit, label %for.body, !llvm.loop !029 30exit: ; preds = %for.body31 %arrayidx5 = getelementptr inbounds i32, ptr %inv, i64 4232 store i32 %mul, ptr %arrayidx5, align 433 ret void34}35 36define float @ret_last_lane(ptr noalias nocapture %a, ptr noalias nocapture readonly %b, i64 %n) #0 {37; CHECK-LABEL: @ret_last_lane38; CHECK: vector.body:39; CHECK: store <vscale x 4 x float> %[[VEC_VAL:.*]], ptr40; CHECK: middle.block:41; CHECK: %[[VSCALE:.*]] = call i32 @llvm.vscale.i32()42; CHECK-NEXT: %[[VSCALE2:.*]] = shl nuw i32 %[[VSCALE]], 243; CHECK-NEXT: %[[LAST_LANE:.*]] = add i32 %[[VSCALE2]], -144; CHECK-NEXT: %{{.*}} = extractelement <vscale x 4 x float> %[[VEC_VAL]], i32 %[[LAST_LANE]]45 46entry:47 br label %for.body48 49for.body: ; preds = %for.body.preheader, %for.body50 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]51 %arrayidx = getelementptr inbounds float, ptr %b, i64 %indvars.iv52 %0 = load float, ptr %arrayidx, align 453 %mul = fmul float %0, 2.000000e+0054 %arrayidx2 = getelementptr inbounds float, ptr %a, i64 %indvars.iv55 store float %mul, ptr %arrayidx2, align 456 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 157 %exitcond.not = icmp eq i64 %indvars.iv.next, %n58 br i1 %exitcond.not, label %exit, label %for.body, !llvm.loop !659 60exit: ; preds = %for.body, %entry61 ret float %mul62}63 64attributes #0 = { "target-cpu"="generic" "target-features"="+neon,+sve" }65 66!0 = distinct !{!0, !1, !2, !3, !4, !5}67!1 = !{!"llvm.loop.mustprogress"}68!2 = !{!"llvm.loop.vectorize.width", i32 4}69!3 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}70!4 = !{!"llvm.loop.interleave.count", i32 1}71!5 = !{!"llvm.loop.vectorize.enable", i1 true}72!6 = distinct !{!6, !1, !2, !3, !4, !5}73