; LLVM IR from Tunghohin/Competitive_Coding :: Codeforces/cf1676_H1.ll (Z5solvev)

; 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"

%class.binary_index_tree = type { i32, [200010 x i32] }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@a = external dso_local global [200010 x i32], align 16
@t = external dso_local global %class.binary_index_tree, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i64, align 8
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #5
  %5 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 1, ptr %2, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %16, %0
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = icmp sle i32 %7, %8
  br i1 %9, label %11, label %10

10:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %19

11:                                               ; preds = %6
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [200010 x i32], ptr @a, i64 0, i64 %13
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %14)
  br label %16

16:                                               ; preds = %11
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = add nsw i32 %17, 1
  store i32 %18, ptr %2, align 4, !tbaa !5
  br label %6, !llvm.loop !9

19:                                               ; preds = %10
  %20 = load i32, ptr %1, align 4, !tbaa !5
  call void @_ZN17binary_index_treeIiE4initEi(ptr noundef nonnull align 4 dereferenceable(800044) @t, i32 noundef %20)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  store i64 0, ptr %3, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  %21 = load i32, ptr %1, align 4, !tbaa !5
  store i32 %21, ptr %4, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %39, %19
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = icmp sge i32 %23, 1
  br i1 %24, label %26, label %25

25:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %42

26:                                               ; preds = %22
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [200010 x i32], ptr @a, i64 0, i64 %28
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = call noundef i32 @_ZN17binary_index_treeIiE5queryEi(ptr noundef nonnull align 4 dereferenceable(800044) @t, i32 noundef %30)
  %32 = sext i32 %31 to i64
  %33 = load i64, ptr %3, align 8, !tbaa !11
  %34 = add nsw i64 %33, %32
  store i64 %34, ptr %3, align 8, !tbaa !11
  %35 = load i32, ptr %4, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [200010 x i32], ptr @a, i64 0, i64 %36
  %38 = load i32, ptr %37, align 4, !tbaa !5
  call void @_ZN17binary_index_treeIiE6modifyEii(ptr noundef nonnull align 4 dereferenceable(800044) @t, i32 noundef %38, i32 noundef 1)
  br label %39

39:                                               ; preds = %26
  %40 = load i32, ptr %4, align 4, !tbaa !5
  %41 = add nsw i32 %40, -1
  store i32 %41, ptr %4, align 4, !tbaa !5
  br label %22, !llvm.loop !13

42:                                               ; preds = %25
  %43 = load i64, ptr %3, align 8, !tbaa !11
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %43)
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %44, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #5
  ret void
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #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 nounwind uwtable
declare dso_local void @_ZN17binary_index_treeIiE4initEi(ptr noundef nonnull align 4 dereferenceable(800044), i32 noundef) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN17binary_index_treeIiE5queryEi(ptr noundef nonnull align 4 dereferenceable(800044), i32 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN17binary_index_treeIiE6modifyEii(ptr noundef nonnull align 4 dereferenceable(800044), i32 noundef, i32 noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = { 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 #4 = { inlinehint 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 #5 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !10}


; 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"

%class.binary_index_tree = type { i32, [200010 x i32] }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@a = external dso_local global [200010 x i32], align 16
@t = external dso_local global %class.binary_index_tree, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  %2 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %3 = load i32, ptr %1, align 4, !tbaa !5
  %.not12 = icmp slt i32 %3, 1
  br i1 %.not12, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.lcssa = phi i32 [ %3, %0 ], [ %9, %.lr.ph ]
  call void @_ZN17binary_index_treeIiE4initEi(ptr noundef nonnull align 4 dereferenceable(800044) @t, i32 noundef %.lcssa)
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph17.preheader, label %._crit_edge18

.lr.ph17.preheader:                               ; preds = %._crit_edge
  %6 = zext nneg i32 %4 to i64
  br label %.lr.ph17

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 1, %0 ]
  %7 = getelementptr inbounds [200010 x i32], ptr @a, i64 0, i64 %indvars.iv
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %.not.not = icmp slt i64 %indvars.iv, %10
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge18:                                    ; preds = %.lr.ph17, %._crit_edge
  %.09.lcssa = phi i64 [ 0, %._crit_edge ], [ %17, %.lr.ph17 ]
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.09.lcssa)
  %12 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %11, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  ret void

.lr.ph17:                                         ; preds = %.lr.ph17.preheader, %.lr.ph17
  %indvars.iv23 = phi i64 [ %6, %.lr.ph17.preheader ], [ %indvars.iv.next24, %.lr.ph17 ]
  %.0914 = phi i64 [ 0, %.lr.ph17.preheader ], [ %17, %.lr.ph17 ]
  %13 = getelementptr inbounds [200010 x i32], ptr @a, i64 0, i64 %indvars.iv23
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = call noundef i32 @_ZN17binary_index_treeIiE5queryEi(ptr noundef nonnull align 4 dereferenceable(800044) @t, i32 noundef %14)
  %16 = sext i32 %15 to i64
  %17 = add nsw i64 %.0914, %16
  %18 = load i32, ptr %13, align 4, !tbaa !5
  call void @_ZN17binary_index_treeIiE6modifyEii(ptr noundef nonnull align 4 dereferenceable(800044) @t, i32 noundef %18, i32 noundef 1)
  %indvars.iv.next24 = add nsw i64 %indvars.iv23, -1
  %19 = icmp ugt i64 %indvars.iv23, 1
  br i1 %19, label %.lr.ph17, label %._crit_edge18, !llvm.loop !11
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #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
declare dso_local void @_ZN17binary_index_treeIiE4initEi(ptr noundef nonnull align 4 dereferenceable(800044), i32 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN17binary_index_treeIiE5queryEi(ptr noundef nonnull align 4 dereferenceable(800044), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN17binary_index_treeIiE6modifyEii(ptr noundef nonnull align 4 dereferenceable(800044), i32 noundef, i32 noundef) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = { 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 #4 = { inlinehint 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 #5 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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