1; RUN: opt -passes=loop-vectorize,dce,instcombine -mtriple aarch64-linux-gnu -S < %s | FileCheck %s 2 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_lane 8; CHECK: vector.body: 9; CHECK: store <vscale x 4 x i32> %[[VEC_VAL:.*]], ptr 10; CHECK: middle.block: 11; CHECK: %[[VSCALE:.*]] = call i32 @llvm.vscale.i32() 12; CHECK-NEXT: %[[VSCALE2:.*]] = shl i32 %[[VSCALE]], 2 13; CHECK-NEXT: %[[LAST_LANE:.*]] = add i32 %[[VSCALE2]], -1 14; CHECK-NEXT: %{{.*}} = extractelement <vscale x 4 x i32> %[[VEC_VAL]], i32 %[[LAST_LANE]] 15 16entry: 17 br label %for.body 18 19for.body: ; preds = %for.body.lr.ph, %for.body 20 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 21 %arrayidx = getelementptr inbounds i32, ptr %b, i64 %indvars.iv 22 %0 = load i32, ptr %arrayidx, align 4 23 %mul = shl nsw i32 %0, 1 24 %arrayidx2 = getelementptr inbounds i32, ptr %a, i64 %indvars.iv 25 store i32 %mul, ptr %arrayidx2, align 4 26 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 27 %exitcond.not = icmp eq i64 %indvars.iv.next, %n 28 br i1 %exitcond.not, label %exit, label %for.body, !llvm.loop !0 29 30exit: ; preds = %for.body 31 %arrayidx5 = getelementptr inbounds i32, ptr %inv, i64 42 32 store i32 %mul, ptr %arrayidx5, align 4 33 ret void 34} 35 36define float @ret_last_lane(ptr noalias nocapture %a, ptr noalias nocapture readonly %b, i64 %n) #0 { 37; CHECK-LABEL: @ret_last_lane 38; CHECK: vector.body: 39; CHECK: store <vscale x 4 x float> %[[VEC_VAL:.*]], ptr 40; CHECK: middle.block: 41; CHECK: %[[VSCALE:.*]] = call i32 @llvm.vscale.i32() 42; CHECK-NEXT: %[[VSCALE2:.*]] = shl i32 %[[VSCALE]], 2 43; CHECK-NEXT: %[[LAST_LANE:.*]] = add i32 %[[VSCALE2]], -1 44; CHECK-NEXT: %{{.*}} = extractelement <vscale x 4 x float> %[[VEC_VAL]], i32 %[[LAST_LANE]] 45 46entry: 47 br label %for.body 48 49for.body: ; preds = %for.body.preheader, %for.body 50 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 51 %arrayidx = getelementptr inbounds float, ptr %b, i64 %indvars.iv 52 %0 = load float, ptr %arrayidx, align 4 53 %mul = fmul float %0, 2.000000e+00 54 %arrayidx2 = getelementptr inbounds float, ptr %a, i64 %indvars.iv 55 store float %mul, ptr %arrayidx2, align 4 56 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 57 %exitcond.not = icmp eq i64 %indvars.iv.next, %n 58 br i1 %exitcond.not, label %exit, label %for.body, !llvm.loop !6 59 60exit: ; preds = %for.body, %entry 61 ret float %mul 62} 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