; LLVM IR from ayush-tulsyan/ACM-ICPC-Handbook :: code/segmentTree.ll (Z9queryTreeiiiii)

; 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"

@Tree = external dso_local global [404000 x i64], 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z9queryTreeiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #2 {
  %6 = alloca i64, align 8
  %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 i64, align 8
  %16 = alloca i32, align 4
  %17 = alloca i64, align 8
  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
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %18 = load i32, ptr %10, align 4, !tbaa !5
  %19 = load i32, ptr %11, align 4, !tbaa !5
  %20 = add nsw i32 %18, %19
  %21 = ashr i32 %20, 1
  store i32 %21, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %22 = load i32, ptr %7, align 4, !tbaa !5
  %23 = shl i32 %22, 1
  store i32 %23, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %24 = load i32, ptr %13, align 4, !tbaa !5
  %25 = or i32 %24, 1
  store i32 %25, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #3
  store i64 1000000000000000000, ptr %15, align 8, !tbaa !9
  %26 = load i32, ptr %8, align 4, !tbaa !5
  %27 = load i32, ptr %10, align 4, !tbaa !5
  %28 = icmp sle i32 %26, %27
  br i1 %28, label %29, label %38

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

33:                                               ; preds = %29
  %34 = load i32, ptr %7, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [404000 x i64], ptr @Tree, i64 0, i64 %35
  %37 = load i64, ptr %36, align 8, !tbaa !9
  store i64 %37, ptr %6, align 8
  store i32 1, ptr %16, align 4
  br label %65

38:                                               ; preds = %29, %5
  %39 = load i32, ptr %12, align 4, !tbaa !5
  %40 = load i32, ptr %8, align 4, !tbaa !5
  %41 = icmp sge i32 %39, %40
  br i1 %41, label %42, label %49

42:                                               ; preds = %38
  %43 = load i32, ptr %13, align 4, !tbaa !5
  %44 = load i32, ptr %8, align 4, !tbaa !5
  %45 = load i32, ptr %9, align 4, !tbaa !5
  %46 = load i32, ptr %10, align 4, !tbaa !5
  %47 = load i32, ptr %12, align 4, !tbaa !5
  %48 = call noundef i64 @_Z9queryTreeiiiii(i32 noundef %43, i32 noundef %44, i32 noundef %45, i32 noundef %46, i32 noundef %47)
  store i64 %48, ptr %15, align 8, !tbaa !9
  br label %49

49:                                               ; preds = %42, %38
  %50 = load i32, ptr %12, align 4, !tbaa !5
  %51 = load i32, ptr %9, align 4, !tbaa !5
  %52 = icmp slt i32 %50, %51
  br i1 %52, label %53, label %63

53:                                               ; preds = %49
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #3
  %54 = load i32, ptr %14, align 4, !tbaa !5
  %55 = load i32, ptr %8, align 4, !tbaa !5
  %56 = load i32, ptr %9, align 4, !tbaa !5
  %57 = load i32, ptr %12, align 4, !tbaa !5
  %58 = add nsw i32 %57, 1
  %59 = load i32, ptr %11, align 4, !tbaa !5
  %60 = call noundef i64 @_Z9queryTreeiiiii(i32 noundef %54, i32 noundef %55, i32 noundef %56, i32 noundef %58, i32 noundef %59)
  store i64 %60, ptr %17, align 8, !tbaa !9
  %61 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull align 8 dereferenceable(8) %17)
  %62 = load i64, ptr %61, align 8, !tbaa !9
  store i64 %62, ptr %15, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #3
  br label %63

63:                                               ; preds = %53, %49
  %64 = load i64, ptr %15, align 8, !tbaa !9
  store i64 %64, ptr %6, align 8
  store i32 1, ptr %16, align 4
  br label %65

65:                                               ; preds = %63, %33
  call void @llvm.lifetime.end.p0(i64 8, 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
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  %66 = load i64, ptr %6, align 8
  ret i64 %66
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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"

@Tree = external dso_local local_unnamed_addr global [404000 x i64], align 16

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

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_Z9queryTreeiiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #2 {
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = add nsw i32 %4, %3
  %9 = ashr i32 %8, 1
  %10 = shl i32 %0, 1
  %11 = or disjoint i32 %10, 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  store i64 1000000000000000000, ptr %6, align 8, !tbaa !5
  %.not = icmp sgt i32 %1, %3
  %.not27 = icmp sgt i32 %4, %2
  %or.cond = or i1 %.not, %.not27
  br i1 %or.cond, label %15, label %12

12:                                               ; preds = %5
  %13 = sext i32 %0 to i64
  %14 = getelementptr inbounds [404000 x i64], ptr @Tree, i64 0, i64 %13
  %.0.pre = load i64, ptr %14, align 8, !tbaa !5
  br label %25

15:                                               ; preds = %5
  %.not28 = icmp slt i32 %9, %1
  br i1 %.not28, label %18, label %16

16:                                               ; preds = %15
  %17 = tail call noundef i64 @_Z9queryTreeiiiii(i32 noundef %10, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %9)
  store i64 %17, ptr %6, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %16, %15
  %.030 = phi i64 [ %17, %16 ], [ 1000000000000000000, %15 ]
  %19 = icmp slt i32 %9, %2
  br i1 %19, label %20, label %25

20:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #3
  %21 = add nsw i32 %9, 1
  %22 = tail call noundef i64 @_Z9queryTreeiiiii(i32 noundef %11, i32 noundef %1, i32 noundef %2, i32 noundef %21, i32 noundef %4)
  store i64 %22, ptr %7, align 8, !tbaa !5
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7)
  %24 = load i64, ptr %23, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #3
  br label %25

25:                                               ; preds = %18, %20, %12
  %.0 = phi i64 [ %.0.pre, %12 ], [ %24, %20 ], [ %.030, %18 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  ret i64 %.0
}

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


; Effective O3 passes: BDCEPass,DSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass