; LLVM IR from intel/qpl :: sources/core-sw/src/filtering (qplc_scan)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @px_qplc_scan_not_range_16u8u(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #1 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store i32 %3, ptr %9, align 4, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #2
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %13, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #2
  store i32 0, ptr %12, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %46, %5
  %15 = load i32, ptr %12, align 4, !tbaa !9
  %16 = load i32, ptr %8, align 4, !tbaa !9
  %17 = icmp ult i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #2
  br label %49

19:                                               ; preds = %14
  %20 = load ptr, ptr %11, align 8, !tbaa !5
  %21 = load i32, ptr %12, align 4, !tbaa !9
  %22 = zext i32 %21 to i64
  %23 = getelementptr inbounds i16, ptr %20, i64 %22
  %24 = load i16, ptr %23, align 2, !tbaa !11
  %25 = zext i16 %24 to i32
  %26 = load i32, ptr %9, align 4, !tbaa !9
  %27 = icmp uge i32 %25, %26
  br i1 %27, label %28, label %37

28:                                               ; preds = %19
  %29 = load ptr, ptr %11, align 8, !tbaa !5
  %30 = load i32, ptr %12, align 4, !tbaa !9
  %31 = zext i32 %30 to i64
  %32 = getelementptr inbounds i16, ptr %29, i64 %31
  %33 = load i16, ptr %32, align 2, !tbaa !11
  %34 = zext i16 %33 to i32
  %35 = load i32, ptr %10, align 4, !tbaa !9
  %36 = icmp ule i32 %34, %35
  br label %37

37:                                               ; preds = %28, %19
  %38 = phi i1 [ false, %19 ], [ %36, %28 ]
  %39 = zext i1 %38 to i64
  %40 = select i1 %38, i32 0, i32 1
  %41 = trunc i32 %40 to i8
  %42 = load ptr, ptr %7, align 8, !tbaa !5
  %43 = load i32, ptr %12, align 4, !tbaa !9
  %44 = zext i32 %43 to i64
  %45 = getelementptr inbounds i8, ptr %42, i64 %44
  store i8 %41, ptr %45, align 1, !tbaa !13
  br label %46

46:                                               ; preds = %37
  %47 = load i32, ptr %12, align 4, !tbaa !9
  %48 = add i32 %47, 1
  store i32 %48, ptr %12, align 4, !tbaa !9
  br label %14, !llvm.loop !14

49:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @px_qplc_scan_not_range_16u8u(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %.not14 = icmp eq i32 %2, 0
  br i1 %.not14, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %5
  %wide.trip.count = zext i32 %2 to i64
  %min.iters.check = icmp ult i32 %2, 8
  br i1 %min.iters.check, label %.lr.ph.preheader19, label %vector.memcheck

.lr.ph.preheader19:                               ; preds = %middle.block, %vector.memcheck, %.lr.ph.preheader
  %indvars.iv.ph = phi i64 [ 0, %vector.memcheck ], [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %wide.trip.count, 1
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol

.lr.ph.prol:                                      ; preds = %.lr.ph.preheader19
  %6 = getelementptr inbounds i16, ptr %0, i64 %indvars.iv.ph
  %7 = load i16, ptr %6, align 2, !tbaa !5
  %8 = zext i16 %7 to i32
  %.not.prol = icmp ult i32 %8, %3
  %9 = icmp ugt i32 %8, %4
  %spec.select.not.prol = or i1 %.not.prol, %9
  %10 = zext i1 %spec.select.not.prol to i8
  %11 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.ph
  store i8 %10, ptr %11, align 1, !tbaa !9
  %indvars.iv.next.prol = or disjoint i64 %indvars.iv.ph, 1
  br label %.lr.ph.prol.loopexit

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader19
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %.lr.ph.preheader19 ], [ %indvars.iv.next.prol, %.lr.ph.prol ]
  %12 = add nsw i64 %wide.trip.count, -1
  %13 = icmp eq i64 %indvars.iv.ph, %12
  br i1 %13, label %._crit_edge, label %.lr.ph

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %scevgep = getelementptr i8, ptr %1, i64 %wide.trip.count
  %14 = shl nuw nsw i64 %wide.trip.count, 1
  %scevgep16 = getelementptr i8, ptr %0, i64 %14
  %bound0 = icmp ugt ptr %scevgep16, %1
  %bound1 = icmp ugt ptr %scevgep, %0
  %found.conflict = and i1 %bound0, %bound1
  br i1 %found.conflict, label %.lr.ph.preheader19, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %wide.trip.count, 4294967288
  %broadcast.splatinsert = insertelement <8 x i32> poison, i32 %3, i64 0
  %broadcast.splat = shufflevector <8 x i32> %broadcast.splatinsert, <8 x i32> poison, <8 x i32> zeroinitializer
  %broadcast.splatinsert17 = insertelement <8 x i32> poison, i32 %4, i64 0
  %broadcast.splat18 = shufflevector <8 x i32> %broadcast.splatinsert17, <8 x i32> poison, <8 x i32> zeroinitializer
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %15 = getelementptr inbounds i16, ptr %0, i64 %index
  %wide.load = load <8 x i16>, ptr %15, align 2, !tbaa !5, !alias.scope !10
  %16 = zext <8 x i16> %wide.load to <8 x i32>
  %17 = icmp ugt <8 x i32> %broadcast.splat, %16
  %18 = icmp ult <8 x i32> %broadcast.splat18, %16
  %19 = or <8 x i1> %17, %18
  %20 = zext <8 x i1> %19 to <8 x i8>
  %21 = getelementptr inbounds i8, ptr %1, i64 %index
  store <8 x i8> %20, ptr %21, align 1, !tbaa !9, !alias.scope !13, !noalias !10
  %index.next = add nuw i64 %index, 8
  %22 = icmp eq i64 %index.next, %n.vec
  br i1 %22, label %middle.block, label %vector.body, !llvm.loop !15

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader19

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %5
  ret void

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.1, %.lr.ph ], [ %indvars.iv.unr, %.lr.ph.prol.loopexit ]
  %23 = getelementptr inbounds i16, ptr %0, i64 %indvars.iv
  %24 = load i16, ptr %23, align 2, !tbaa !5
  %25 = zext i16 %24 to i32
  %.not = icmp ult i32 %25, %3
  %26 = icmp ugt i32 %25, %4
  %spec.select.not = or i1 %.not, %26
  %27 = zext i1 %spec.select.not to i8
  %28 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv
  store i8 %27, ptr %28, align 1, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %29 = getelementptr inbounds i16, ptr %0, i64 %indvars.iv.next
  %30 = load i16, ptr %29, align 2, !tbaa !5
  %31 = zext i16 %30 to i32
  %.not.1 = icmp ult i32 %31, %3
  %32 = icmp ugt i32 %31, %4
  %spec.select.not.1 = or i1 %.not.1, %32
  %33 = zext i1 %spec.select.not.1 to i8
  %34 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.next
  store i8 %33, ptr %34, align 1, !tbaa !9
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %exitcond.not.1 = icmp eq i64 %indvars.iv.next.1, %wide.trip.count
  br i1 %exitcond.not.1, label %._crit_edge, label %.lr.ph, !llvm.loop !19
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"short", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11}
!11 = distinct !{!11, !12}
!12 = distinct !{!12, !"LVerDomain"}
!13 = !{!14}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !16, !17, !18}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!"llvm.loop.isvectorized", i32 1}
!18 = !{!"llvm.loop.unroll.runtime.disable"}
!19 = distinct !{!19, !16, !17}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass