; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/Company Contests/Epic Code/Problem F/F.ll (Z6updateiixxxiii)

; 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, i64, i64 }

@tree = external dso_local global [1048576 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(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #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 @_Z3updiiixxx(i32 noundef, i32 noundef, i32 noundef, i64 noundef, i64 noundef, i64 noundef) #2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6updateiixxxiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i64 noundef %3, i64 noundef %4, i32 noundef %5, i32 noundef %6, i32 noundef %7) #2 {
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i64, align 8
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  store i32 %0, ptr %9, align 4, !tbaa !5
  store i32 %1, ptr %10, align 4, !tbaa !5
  store i64 %2, ptr %11, align 8, !tbaa !9
  store i64 %3, ptr %12, align 8, !tbaa !9
  store i64 %4, ptr %13, align 8, !tbaa !9
  store i32 %5, ptr %14, align 4, !tbaa !5
  store i32 %6, ptr %15, align 4, !tbaa !5
  store i32 %7, ptr %16, align 4, !tbaa !5
  %20 = load i32, ptr %9, align 4, !tbaa !5
  %21 = load i32, ptr %16, align 4, !tbaa !5
  %22 = icmp sge i32 %20, %21
  br i1 %22, label %27, label %23

23:                                               ; preds = %8
  %24 = load i32, ptr %15, align 4, !tbaa !5
  %25 = load i32, ptr %10, align 4, !tbaa !5
  %26 = icmp sge i32 %24, %25
  br i1 %26, label %27, label %28

27:                                               ; preds = %23, %8
  br label %80

28:                                               ; preds = %23
  %29 = load i32, ptr %9, align 4, !tbaa !5
  %30 = load i32, ptr %15, align 4, !tbaa !5
  %31 = icmp sle i32 %29, %30
  br i1 %31, label %32, label %43

32:                                               ; preds = %28
  %33 = load i32, ptr %16, align 4, !tbaa !5
  %34 = load i32, ptr %10, align 4, !tbaa !5
  %35 = icmp sle i32 %33, %34
  br i1 %35, label %36, label %43

36:                                               ; preds = %32
  %37 = load i32, ptr %14, align 4, !tbaa !5
  %38 = load i32, ptr %15, align 4, !tbaa !5
  %39 = load i32, ptr %16, align 4, !tbaa !5
  %40 = load i64, ptr %11, align 8, !tbaa !9
  %41 = load i64, ptr %12, align 8, !tbaa !9
  %42 = load i64, ptr %13, align 8, !tbaa !9
  call void @_Z3updiiixxx(i32 noundef %37, i32 noundef %38, i32 noundef %39, i64 noundef %40, i64 noundef %41, i64 noundef %42)
  br label %80

43:                                               ; preds = %32, %28
  %44 = load i32, ptr %14, align 4, !tbaa !5
  %45 = load i32, ptr %15, align 4, !tbaa !5
  %46 = load i32, ptr %16, align 4, !tbaa !5
  call void @_Z5shiftiii(i32 noundef %44, i32 noundef %45, i32 noundef %46)
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #3
  %47 = load i32, ptr %14, align 4, !tbaa !5
  %48 = shl i32 %47, 1
  store i32 %48, ptr %17, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #3
  %49 = load i32, ptr %17, align 4, !tbaa !5
  %50 = add nsw i32 %49, 1
  store i32 %50, ptr %18, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #3
  %51 = load i32, ptr %15, align 4, !tbaa !5
  %52 = load i32, ptr %16, align 4, !tbaa !5
  %53 = add nsw i32 %51, %52
  %54 = ashr i32 %53, 1
  store i32 %54, ptr %19, align 4, !tbaa !5
  %55 = load i32, ptr %9, align 4, !tbaa !5
  %56 = load i32, ptr %10, align 4, !tbaa !5
  %57 = load i64, ptr %11, align 8, !tbaa !9
  %58 = load i64, ptr %12, align 8, !tbaa !9
  %59 = load i64, ptr %13, align 8, !tbaa !9
  %60 = load i32, ptr %17, align 4, !tbaa !5
  %61 = load i32, ptr %15, align 4, !tbaa !5
  %62 = load i32, ptr %19, align 4, !tbaa !5
  call void @_Z6updateiixxxiii(i32 noundef %55, i32 noundef %56, i64 noundef %57, i64 noundef %58, i64 noundef %59, i32 noundef %60, i32 noundef %61, i32 noundef %62)
  %63 = load i32, ptr %9, align 4, !tbaa !5
  %64 = load i32, ptr %10, align 4, !tbaa !5
  %65 = load i64, ptr %11, align 8, !tbaa !9
  %66 = load i64, ptr %12, align 8, !tbaa !9
  %67 = load i64, ptr %13, align 8, !tbaa !9
  %68 = load i32, ptr %18, align 4, !tbaa !5
  %69 = load i32, ptr %19, align 4, !tbaa !5
  %70 = load i32, ptr %16, align 4, !tbaa !5
  call void @_Z6updateiixxxiii(i32 noundef %63, i32 noundef %64, i64 noundef %65, i64 noundef %66, i64 noundef %67, i32 noundef %68, i32 noundef %69, i32 noundef %70)
  %71 = load i32, ptr %14, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds [1048576 x %struct.node], ptr @tree, i64 0, i64 %72
  %74 = load i32, ptr %17, align 4, !tbaa !5
  %75 = sext i32 %74 to i64
  %76 = getelementptr inbounds [1048576 x %struct.node], ptr @tree, i64 0, i64 %75
  %77 = load i32, ptr %18, align 4, !tbaa !5
  %78 = sext i32 %77 to i64
  %79 = getelementptr inbounds [1048576 x %struct.node], ptr @tree, i64 0, i64 %78
  call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(32) %73, ptr noundef nonnull align 8 dereferenceable(32) %76, ptr noundef nonnull align 8 dereferenceable(32) %79)
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #3
  br label %80

80:                                               ; preds = %43, %36, %27
  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, i64, i64 }

@tree = external dso_local global [1048576 x %struct.node], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3updiiixxx(i32 noundef, i32 noundef, i32 noundef, i64 noundef, i64 noundef, i64 noundef) local_unnamed_addr #1

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6updateiixxxiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i64 noundef %3, i64 noundef %4, i32 noundef %5, i32 noundef %6, i32 noundef %7) local_unnamed_addr #1 {
  %.not = icmp slt i32 %0, %7
  %.not43 = icmp slt i32 %6, %1
  %or.cond = and i1 %.not43, %.not
  br i1 %or.cond, label %9, label %common.ret47

9:                                                ; preds = %8
  %.not44 = icmp sgt i32 %0, %6
  %.not45 = icmp sgt i32 %7, %1
  %or.cond46 = or i1 %.not44, %.not45
  br i1 %or.cond46, label %11, label %10

10:                                               ; preds = %9
  tail call void @_Z3updiiixxx(i32 noundef %5, i32 noundef %6, i32 noundef %7, i64 noundef %2, i64 noundef %3, i64 noundef %4)
  br label %common.ret47

common.ret47:                                     ; preds = %8, %10, %11
  ret void

11:                                               ; preds = %9
  tail call void @_Z5shiftiii(i32 noundef %5, i32 noundef %6, i32 noundef %7)
  %12 = shl i32 %5, 1
  %13 = or disjoint i32 %12, 1
  %14 = add nsw i32 %7, %6
  %15 = ashr i32 %14, 1
  tail call void @_Z6updateiixxxiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i64 noundef %3, i64 noundef %4, i32 noundef %12, i32 noundef %6, i32 noundef %15)
  tail call void @_Z6updateiixxxiii(i32 noundef %0, i32 noundef %1, i64 noundef %2, i64 noundef %3, i64 noundef %4, i32 noundef %13, i32 noundef %15, i32 noundef %7)
  %16 = sext i32 %5 to i64
  %17 = getelementptr inbounds [1048576 x %struct.node], ptr @tree, i64 0, i64 %16
  %18 = sext i32 %12 to i64
  %19 = getelementptr inbounds [1048576 x %struct.node], ptr @tree, i64 0, i64 %18
  %20 = sext i32 %13 to i64
  %21 = getelementptr inbounds [1048576 x %struct.node], ptr @tree, i64 0, i64 %20
  tail call void @_ZN4node7combineERS_S0_(ptr noundef nonnull align 8 dereferenceable(32) %17, ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) %21)
  br label %common.ret47
}

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)"}


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