; LLVM IR from VastoLorde95/Competitive-Programming :: SPOJ/Random/SEGSQRSS/seg.ll (Z7update2iixiii)

; 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.node = type { i64, i64 }

@lazy = external dso_local global [131072 x i32], align 16
@lazy2 = external dso_local global [131072 x i32], align 16
@tree = external dso_local global [262144 x %struct.node], align 16

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5shiftiii(i32 noundef, i32 noundef, i32 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node7update2Exi(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef, i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7update2iixiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i32 noundef %3, i32 noundef %4, i32 noundef %5) #2 {
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  %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 i32, align 4
  store i32 %0, ptr %7, align 4, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !5
  store i64 %2, ptr %9, align 8, !tbaa !9
  store i32 %3, ptr %10, align 4, !tbaa !5
  store i32 %4, ptr %11, align 4, !tbaa !5
  store i32 %5, ptr %12, align 4, !tbaa !5
  %16 = load i32, ptr %7, align 4, !tbaa !5
  %17 = load i32, ptr %12, align 4, !tbaa !5
  %18 = icmp sge i32 %16, %17
  br i1 %18, label %23, label %19

19:                                               ; preds = %6
  %20 = load i32, ptr %11, align 4, !tbaa !5
  %21 = load i32, ptr %8, align 4, !tbaa !5
  %22 = icmp sge i32 %20, %21
  br i1 %22, label %23, label %24

23:                                               ; preds = %19, %6
  br label %80

24:                                               ; preds = %19
  %25 = load i32, ptr %7, align 4, !tbaa !5
  %26 = load i32, ptr %11, align 4, !tbaa !5
  %27 = icmp sle i32 %25, %26
  br i1 %27, label %28, label %47

28:                                               ; preds = %24
  %29 = load i32, ptr %12, align 4, !tbaa !5
  %30 = load i32, ptr %8, align 4, !tbaa !5
  %31 = icmp sle i32 %29, %30
  br i1 %31, label %32, label %47

32:                                               ; preds = %28
  %33 = load i32, ptr %7, align 4, !tbaa !5
  %34 = load i32, ptr %10, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [131072 x i32], ptr @lazy2, i64 0, i64 %35
  store i32 %33, ptr %36, align 4, !tbaa !5
  %37 = load i32, ptr %10, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [131072 x i32], ptr @lazy, i64 0, i64 %38
  store i32 0, ptr %39, align 4, !tbaa !5
  %40 = load i32, ptr %10, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %41
  %43 = load i64, ptr %9, align 8, !tbaa !9
  %44 = load i32, ptr %12, align 4, !tbaa !5
  %45 = load i32, ptr %11, align 4, !tbaa !5
  %46 = sub nsw i32 %44, %45
  call void @_ZN4node7update2Exi(ptr noundef nonnull align 8 dereferenceable(16) %42, i64 noundef %43, i32 noundef %46)
  br label %80

47:                                               ; preds = %28, %24
  %48 = load i32, ptr %10, align 4, !tbaa !5
  %49 = load i32, ptr %11, align 4, !tbaa !5
  %50 = load i32, ptr %12, align 4, !tbaa !5
  call void @_Z5shiftiii(i32 noundef %48, i32 noundef %49, i32 noundef %50)
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %51 = load i32, ptr %10, align 4, !tbaa !5
  %52 = shl i32 %51, 1
  store i32 %52, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %53 = load i32, ptr %13, align 4, !tbaa !5
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #3
  %55 = load i32, ptr %11, align 4, !tbaa !5
  %56 = load i32, ptr %12, align 4, !tbaa !5
  %57 = add nsw i32 %55, %56
  %58 = ashr i32 %57, 1
  store i32 %58, ptr %15, align 4, !tbaa !5
  %59 = load i32, ptr %7, align 4, !tbaa !5
  %60 = load i32, ptr %8, align 4, !tbaa !5
  %61 = load i64, ptr %9, align 8, !tbaa !9
  %62 = load i32, ptr %13, align 4, !tbaa !5
  %63 = load i32, ptr %11, align 4, !tbaa !5
  %64 = load i32, ptr %15, align 4, !tbaa !5
  call void @_Z7update2iixiii(i32 noundef %59, i32 noundef %60, i64 noundef %61, i32 noundef %62, i32 noundef %63, i32 noundef %64)
  %65 = load i32, ptr %7, align 4, !tbaa !5
  %66 = load i32, ptr %8, align 4, !tbaa !5
  %67 = load i64, ptr %9, align 8, !tbaa !9
  %68 = load i32, ptr %14, align 4, !tbaa !5
  %69 = load i32, ptr %15, align 4, !tbaa !5
  %70 = load i32, ptr %12, align 4, !tbaa !5
  call void @_Z7update2iixiii(i32 noundef %65, i32 noundef %66, i64 noundef %67, i32 noundef %68, i32 noundef %69, i32 noundef %70)
  %71 = load i32, ptr %10, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %72
  %74 = load i32, ptr %13, align 4, !tbaa !5
  %75 = sext i32 %74 to i64
  %76 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %75
  %77 = load i32, ptr %14, align 4, !tbaa !5
  %78 = sext i32 %77 to i64
  %79 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %78
  call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(16) %73, ptr noundef nonnull align 8 dereferenceable(16) %76, ptr noundef nonnull align 8 dereferenceable(16) %79)
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  br label %80

80:                                               ; preds = %47, %32, %23
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}


; 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.node = type { i64, i64 }

@lazy = external dso_local local_unnamed_addr global [131072 x i32], align 16
@lazy2 = external dso_local local_unnamed_addr global [131072 x i32], align 16
@tree = external dso_local global [262144 x %struct.node], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5shiftiii(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node7update2Exi(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z7update2iixiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i32 noundef %3, i32 noundef %4, i32 noundef %5) local_unnamed_addr #1 {
  %.not = icmp slt i32 %0, %5
  %.not40 = icmp slt i32 %4, %1
  %or.cond = and i1 %.not40, %.not
  br i1 %or.cond, label %7, label %common.ret44

7:                                                ; preds = %6
  %.not41 = icmp sgt i32 %0, %4
  %.not42 = icmp sgt i32 %5, %1
  %or.cond43 = or i1 %.not41, %.not42
  br i1 %or.cond43, label %14, label %8

8:                                                ; preds = %7
  %9 = sext i32 %3 to i64
  %10 = getelementptr inbounds [131072 x i32], ptr @lazy2, i64 0, i64 %9
  store i32 %0, ptr %10, align 4, !tbaa !5
  %11 = getelementptr inbounds [131072 x i32], ptr @lazy, i64 0, i64 %9
  store i32 0, ptr %11, align 4, !tbaa !5
  %12 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %9
  %13 = sub nsw i32 %5, %4
  tail call void @_ZN4node7update2Exi(ptr noundef nonnull align 8 dereferenceable(16) %12, i64 noundef %2, i32 noundef %13)
  br label %common.ret44

common.ret44:                                     ; preds = %6, %8, %14
  ret void

14:                                               ; preds = %7
  tail call void @_Z5shiftiii(i32 noundef %3, i32 noundef %4, i32 noundef %5)
  %15 = shl i32 %3, 1
  %16 = or disjoint i32 %15, 1
  %17 = add nsw i32 %5, %4
  %18 = ashr i32 %17, 1
  tail call void @_Z7update2iixiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i32 noundef %15, i32 noundef %4, i32 noundef %18)
  tail call void @_Z7update2iixiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i32 noundef %16, i32 noundef %18, i32 noundef %5)
  %19 = sext i32 %3 to i64
  %20 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %19
  %21 = sext i32 %15 to i64
  %22 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %21
  %23 = sext i32 %16 to i64
  %24 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %23
  tail call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(16) %20, ptr noundef nonnull align 8 dereferenceable(16) %22, ptr noundef nonnull align 8 dereferenceable(16) %24)
  br label %common.ret44
}

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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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