73 lines
3.0 KiB
LLVM
73 lines
3.0 KiB
LLVM
; RUN: opt -loop-vectorize -dce -instcombine -mtriple aarch64-linux-gnu -S < %s | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-unknown-linux-gnu"
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define void @inv_store_last_lane(i32* noalias nocapture %a, i32* noalias nocapture %inv, i32* noalias nocapture readonly %b, i64 %n) #0 {
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; CHECK-LABEL: @inv_store_last_lane
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; CHECK: vector.body:
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; CHECK: store <vscale x 4 x i32> %[[VEC_VAL:.*]], <
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; CHECK: middle.block:
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; CHECK: %[[VSCALE:.*]] = call i32 @llvm.vscale.i32()
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; CHECK-NEXT: %[[VSCALE2:.*]] = shl i32 %[[VSCALE]], 2
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; CHECK-NEXT: %[[LAST_LANE:.*]] = add i32 %[[VSCALE2]], -1
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; CHECK-NEXT: %{{.*}} = extractelement <vscale x 4 x i32> %[[VEC_VAL]], i32 %[[LAST_LANE]]
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entry:
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br label %for.body
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for.body: ; preds = %for.body.lr.ph, %for.body
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %b, i64 %indvars.iv
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%0 = load i32, i32* %arrayidx, align 4
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%mul = shl nsw i32 %0, 1
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%arrayidx2 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
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store i32 %mul, i32* %arrayidx2, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond.not = icmp eq i64 %indvars.iv.next, %n
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br i1 %exitcond.not, label %exit, label %for.body, !llvm.loop !0
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exit: ; preds = %for.body
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%arrayidx5 = getelementptr inbounds i32, i32* %inv, i64 42
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store i32 %mul, i32* %arrayidx5, align 4
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ret void
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}
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define float @ret_last_lane(float* noalias nocapture %a, float* noalias nocapture readonly %b, i64 %n) #0 {
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; CHECK-LABEL: @ret_last_lane
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; CHECK: vector.body:
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; CHECK: store <vscale x 4 x float> %[[VEC_VAL:.*]], <
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; CHECK: middle.block:
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; CHECK: %[[VSCALE:.*]] = call i32 @llvm.vscale.i32()
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; CHECK-NEXT: %[[VSCALE2:.*]] = shl i32 %[[VSCALE]], 2
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; CHECK-NEXT: %[[LAST_LANE:.*]] = add i32 %[[VSCALE2]], -1
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; CHECK-NEXT: %{{.*}} = extractelement <vscale x 4 x float> %[[VEC_VAL]], i32 %[[LAST_LANE]]
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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 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv
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%0 = load float, float* %arrayidx, align 4
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%mul = fmul float %0, 2.000000e+00
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%arrayidx2 = getelementptr inbounds float, float* %a, i64 %indvars.iv
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store float %mul, float* %arrayidx2, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond.not = icmp eq i64 %indvars.iv.next, %n
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br i1 %exitcond.not, label %exit, label %for.body, !llvm.loop !6
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exit: ; preds = %for.body, %entry
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ret float %mul
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}
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attributes #0 = { "target-cpu"="generic" "target-features"="+neon,+sve" }
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!0 = distinct !{!0, !1, !2, !3, !4, !5}
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!1 = !{!"llvm.loop.mustprogress"}
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!2 = !{!"llvm.loop.vectorize.width", i32 4}
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!3 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
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!4 = !{!"llvm.loop.interleave.count", i32 1}
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!5 = !{!"llvm.loop.vectorize.enable", i1 true}
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!6 = distinct !{!6, !1, !2, !3, !4, !5}
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