; LLVM IR from VastoLorde95/Competitive-Programming :: SPOJ/Random/QTREE3/qtree3.ll (Z10query_treeiiiii)

; 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"

%struct.point = type { i32, i32 }

@WHITE = external dso_local global i32, align 4
@s_tree = external dso_local global [606000 x %struct.point], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5point11assign_leafEii(ptr noundef nonnull align 4 dereferenceable(8), i32 noundef, i32 noundef) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5point5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z10query_treeiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #2 {
  %6 = alloca %struct.point, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca %struct.point, align 4
  %16 = alloca %struct.point, align 4
  store i32 %0, ptr %7, align 4, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !5
  store i32 %2, ptr %9, align 4, !tbaa !5
  store i32 %3, ptr %10, align 4, !tbaa !5
  store i32 %4, ptr %11, align 4, !tbaa !5
  %17 = load i32, ptr %8, align 4, !tbaa !5
  %18 = load i32, ptr %11, align 4, !tbaa !5
  %19 = icmp sge i32 %17, %18
  br i1 %19, label %24, label %20

20:                                               ; preds = %5
  %21 = load i32, ptr %9, align 4, !tbaa !5
  %22 = load i32, ptr %10, align 4, !tbaa !5
  %23 = icmp sle i32 %21, %22
  br i1 %23, label %24, label %26

24:                                               ; preds = %20, %5
  %25 = load i32, ptr @WHITE, align 4, !tbaa !5
  call void @_ZN5point11assign_leafEii(ptr noundef nonnull align 4 dereferenceable(8) %6, i32 noundef %25, i32 noundef -1)
  br label %60

26:                                               ; preds = %20
  %27 = load i32, ptr %8, align 4, !tbaa !5
  %28 = load i32, ptr %10, align 4, !tbaa !5
  %29 = icmp sge i32 %27, %28
  br i1 %29, label %30, label %38

30:                                               ; preds = %26
  %31 = load i32, ptr %9, align 4, !tbaa !5
  %32 = load i32, ptr %11, align 4, !tbaa !5
  %33 = icmp sle i32 %31, %32
  br i1 %33, label %34, label %38

34:                                               ; preds = %30
  %35 = load i32, ptr %7, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [606000 x %struct.point], ptr @s_tree, i64 0, i64 %36
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 8 %37, i64 8, i1 false), !tbaa.struct !9
  br label %60

38:                                               ; preds = %30, %26
  br label %39

39:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %40 = load i32, ptr %7, align 4, !tbaa !5
  %41 = shl i32 %40, 1
  store i32 %41, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  %42 = load i32, ptr %12, align 4, !tbaa !5
  %43 = add nsw i32 %42, 1
  store i32 %43, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #4
  %44 = load i32, ptr %8, align 4, !tbaa !5
  %45 = load i32, ptr %9, align 4, !tbaa !5
  %46 = add nsw i32 %44, %45
  %47 = ashr i32 %46, 1
  store i32 %47, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #4
  %48 = load i32, ptr %12, align 4, !tbaa !5
  %49 = load i32, ptr %8, align 4, !tbaa !5
  %50 = load i32, ptr %14, align 4, !tbaa !5
  %51 = load i32, ptr %10, align 4, !tbaa !5
  %52 = load i32, ptr %11, align 4, !tbaa !5
  %53 = call i64 @_Z10query_treeiiiii(i32 noundef %48, i32 noundef %49, i32 noundef %50, i32 noundef %51, i32 noundef %52)
  store i64 %53, ptr %15, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #4
  %54 = load i32, ptr %13, align 4, !tbaa !5
  %55 = load i32, ptr %14, align 4, !tbaa !5
  %56 = load i32, ptr %9, align 4, !tbaa !5
  %57 = load i32, ptr %10, align 4, !tbaa !5
  %58 = load i32, ptr %11, align 4, !tbaa !5
  %59 = call i64 @_Z10query_treeiiiii(i32 noundef %54, i32 noundef %55, i32 noundef %56, i32 noundef %57, i32 noundef %58)
  store i64 %59, ptr %16, align 4
  call void @_ZN5point5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(8) %15, ptr noundef nonnull align 4 dereferenceable(8) %16)
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %60

60:                                               ; preds = %39, %34, %24
  %61 = load i64, ptr %6, align 4
  ret i64 %61
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

attributes #0 = { mustprogress 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i64 0, i64 4, !5, i64 4, i64 4, !5}


; 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"

%struct.point = type { i32, i32 }

@WHITE = external dso_local local_unnamed_addr global i32, align 4
@s_tree = external dso_local local_unnamed_addr global [606000 x %struct.point], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5point11assign_leafEii(ptr noundef nonnull align 4 dereferenceable(8), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5point5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local i64 @_Z10query_treeiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = alloca %struct.point, align 8
  %7 = alloca %struct.point, align 8
  %8 = alloca %struct.point, align 8
  %.not = icmp slt i32 %1, %4
  %.not26 = icmp sgt i32 %2, %3
  %or.cond = and i1 %.not26, %.not
  br i1 %or.cond, label %11, label %9

9:                                                ; preds = %5
  %10 = load i32, ptr @WHITE, align 4, !tbaa !5
  call void @_ZN5point11assign_leafEii(ptr noundef nonnull align 4 dereferenceable(8) %6, i32 noundef %10, i32 noundef -1)
  br label %23

11:                                               ; preds = %5
  %.not27 = icmp slt i32 %1, %3
  %.not28 = icmp sgt i32 %2, %4
  %or.cond29 = or i1 %.not27, %.not28
  br i1 %or.cond29, label %16, label %12

12:                                               ; preds = %11
  %13 = sext i32 %0 to i64
  %14 = getelementptr inbounds [606000 x %struct.point], ptr @s_tree, i64 0, i64 %13
  %15 = load i64, ptr %14, align 8
  store i64 %15, ptr %6, align 8
  br label %23

16:                                               ; preds = %11
  %17 = shl i32 %0, 1
  %18 = or disjoint i32 %17, 1
  %19 = add nsw i32 %2, %1
  %20 = ashr i32 %19, 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #2
  %21 = tail call i64 @_Z10query_treeiiiii(i32 noundef %17, i32 noundef %1, i32 noundef %20, i32 noundef %3, i32 noundef %4)
  store i64 %21, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #2
  %22 = tail call i64 @_Z10query_treeiiiii(i32 noundef %18, i32 noundef %20, i32 noundef %2, i32 noundef %3, i32 noundef %4)
  store i64 %22, ptr %8, align 8
  call void @_ZN5point5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 4 dereferenceable(8) %8)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #2
  br label %23

23:                                               ; preds = %16, %12, %9
  %24 = load i64, ptr %6, align 8
  ret i64 %24
}

attributes #0 = { mustprogress 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass