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

; 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 i32 @px_qplc_select_16u_i(ptr noundef %0, ptr noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %11, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %12, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  store i32 0, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %38, %3
  %14 = load i32, ptr %10, align 4, !tbaa !9
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = icmp ult i32 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  br label %41

18:                                               ; preds = %13
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i32, ptr %10, align 4, !tbaa !9
  %21 = zext i32 %20 to i64
  %22 = getelementptr inbounds i8, ptr %19, i64 %21
  %23 = load i8, ptr %22, align 1, !tbaa !11
  %24 = zext i8 %23 to i32
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %37

26:                                               ; preds = %18
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = load i32, ptr %10, align 4, !tbaa !9
  %29 = zext i32 %28 to i64
  %30 = getelementptr inbounds i16, ptr %27, i64 %29
  %31 = load i16, ptr %30, align 2, !tbaa !12
  %32 = load ptr, ptr %8, align 8, !tbaa !5
  %33 = load i32, ptr %9, align 4, !tbaa !9
  %34 = add i32 %33, 1
  store i32 %34, ptr %9, align 4, !tbaa !9
  %35 = zext i32 %33 to i64
  %36 = getelementptr inbounds i16, ptr %32, i64 %35
  store i16 %31, ptr %36, align 2, !tbaa !12
  br label %37

37:                                               ; preds = %26, %18
  br label %38

38:                                               ; preds = %37
  %39 = load i32, ptr %10, align 4, !tbaa !9
  %40 = add i32 %39, 1
  store i32 %40, ptr %10, align 4, !tbaa !9
  br label %13, !llvm.loop !14

41:                                               ; preds = %17
  %42 = load i32, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  ret i32 %42
}

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 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"short", !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 i32 @px_qplc_select_16u_i(ptr nocapture noundef %0, ptr nocapture noundef readonly %1, i32 noundef %2) local_unnamed_addr #0 {
  %.not14 = icmp eq i32 %2, 0
  br i1 %.not14, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %3
  %wide.trip.count = zext i32 %2 to i64
  %xtraiter = and i64 %wide.trip.count, 1
  %4 = icmp eq i32 %2, 1
  br i1 %4, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %wide.trip.count, 4294967294
  br label %.lr.ph

._crit_edge.loopexit.unr-lcssa:                   ; preds = %29, %.lr.ph.preheader
  %.1.lcssa.ph = phi i32 [ poison, %.lr.ph.preheader ], [ %.1.1, %29 ]
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next.1, %29 ]
  %.01112.unr = phi i32 [ 0, %.lr.ph.preheader ], [ %.1.1, %29 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa
  %5 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.unr
  %6 = load i8, ptr %5, align 1, !tbaa !5
  %.not.epil = icmp eq i8 %6, 0
  br i1 %.not.epil, label %._crit_edge, label %7

7:                                                ; preds = %.lr.ph.epil
  %8 = getelementptr inbounds i16, ptr %0, i64 %indvars.iv.unr
  %9 = load i16, ptr %8, align 2, !tbaa !8
  %10 = add i32 %.01112.unr, 1
  %11 = zext i32 %.01112.unr to i64
  %12 = getelementptr inbounds i16, ptr %0, i64 %11
  store i16 %9, ptr %12, align 2, !tbaa !8
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %7, %.lr.ph.epil, %3
  %.011.lcssa = phi i32 [ 0, %3 ], [ %.1.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %10, %7 ], [ %.01112.unr, %.lr.ph.epil ]
  ret i32 %.011.lcssa

.lr.ph:                                           ; preds = %29, %.lr.ph.preheader.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader.new ], [ %indvars.iv.next.1, %29 ]
  %.01112 = phi i32 [ 0, %.lr.ph.preheader.new ], [ %.1.1, %29 ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.1, %29 ]
  %13 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv
  %14 = load i8, ptr %13, align 1, !tbaa !5
  %.not = icmp eq i8 %14, 0
  br i1 %.not, label %.lr.ph.1, label %15

15:                                               ; preds = %.lr.ph
  %16 = getelementptr inbounds i16, ptr %0, i64 %indvars.iv
  %17 = load i16, ptr %16, align 2, !tbaa !8
  %18 = add i32 %.01112, 1
  %19 = zext i32 %.01112 to i64
  %20 = getelementptr inbounds i16, ptr %0, i64 %19
  store i16 %17, ptr %20, align 2, !tbaa !8
  br label %.lr.ph.1

.lr.ph.1:                                         ; preds = %.lr.ph, %15
  %.1 = phi i32 [ %18, %15 ], [ %.01112, %.lr.ph ]
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %21 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.next
  %22 = load i8, ptr %21, align 1, !tbaa !5
  %.not.1 = icmp eq i8 %22, 0
  br i1 %.not.1, label %29, label %23

23:                                               ; preds = %.lr.ph.1
  %24 = getelementptr inbounds i16, ptr %0, i64 %indvars.iv.next
  %25 = load i16, ptr %24, align 2, !tbaa !8
  %26 = add i32 %.1, 1
  %27 = zext i32 %.1 to i64
  %28 = getelementptr inbounds i16, ptr %0, i64 %27
  store i16 %25, ptr %28, align 2, !tbaa !8
  br label %29

29:                                               ; preds = %23, %.lr.ph.1
  %.1.1 = phi i32 [ %26, %23 ], [ %.1, %.lr.ph.1 ]
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %niter.next.1 = add nuw i64 %niter, 2
  %niter.ncmp.1 = icmp eq i64 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !10
}

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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"short", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass