; LLVM IR from kazunetakahashi/atcoder :: 2017/0806_ARC080 (E)

; 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.SegTree = type { i32, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"struct.std::pair" = type { i32, i32 }

@st = external dso_local global [2 x %class.SegTree], align 16
@ans = external dso_local global %"class.std::vector", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7SegTreeD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5solveii(i32 noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #5 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca [200010 x i32], align 16
  %4 = alloca i32, align 4
  %5 = alloca %class.SegTree, align 8
  %6 = alloca %class.SegTree, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"struct.std::pair", align 4
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %14 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  call void @llvm.lifetime.start.p0(i64 800040, ptr %3) #8
  %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) %2)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #8
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %26, %0
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #8
  br label %29

21:                                               ; preds = %16
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [200010 x i32], ptr %3, i64 0, i64 %23
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %24)
  br label %26

26:                                               ; preds = %21
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %4, align 4, !tbaa !5
  br label %16, !llvm.loop !9

29:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #8
  %30 = load i32, ptr %2, align 4, !tbaa !5
  %31 = sdiv i32 %30, 2
  call void @_ZN7SegTreeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %5, i32 noundef %31)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 @st, ptr align 8 %5, i64 16, i1 false), !tbaa.struct !11
  call void @_ZN7SegTreeD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %5) #8
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #8
  call void @llvm.lifetime.start.p0(i64 16, ptr %6) #8
  %32 = load i32, ptr %2, align 4, !tbaa !5
  %33 = sdiv i32 %32, 2
  call void @_ZN7SegTreeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %6, i32 noundef %33)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 getelementptr inbounds ([2 x %class.SegTree], ptr @st, i64 0, i64 1), ptr align 8 %6, i64 16, i1 false), !tbaa.struct !11
  call void @_ZN7SegTreeD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %6) #8
  call void @llvm.lifetime.end.p0(i64 16, ptr %6) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #8
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %34

34:                                               ; preds = %55, %29
  %35 = load i32, ptr %7, align 4, !tbaa !5
  %36 = load i32, ptr %2, align 4, !tbaa !5
  %37 = icmp slt i32 %35, %36
  br i1 %37, label %39, label %38

38:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  br label %58

39:                                               ; preds = %34
  %40 = load i32, ptr %7, align 4, !tbaa !5
  %41 = srem i32 %40, 2
  %42 = icmp eq i32 %41, 0
  br i1 %42, label %43, label %54

43:                                               ; preds = %39
  %44 = load i32, ptr %7, align 4, !tbaa !5
  %45 = srem i32 %44, 2
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [2 x %class.SegTree], ptr @st, i64 0, i64 %46
  %48 = load i32, ptr %7, align 4, !tbaa !5
  %49 = sdiv i32 %48, 2
  %50 = load i32, ptr %7, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds [200010 x i32], ptr %3, i64 0, i64 %51
  %53 = load i32, ptr %52, align 4, !tbaa !5
  call void @_ZN7SegTree6updateEii(ptr noundef nonnull align 8 dereferenceable(16) %47, i32 noundef %49, i32 noundef %53)
  br label %54

54:                                               ; preds = %43, %39
  br label %55

55:                                               ; preds = %54
  %56 = load i32, ptr %7, align 4, !tbaa !5
  %57 = add nsw i32 %56, 1
  store i32 %57, ptr %7, align 4, !tbaa !5
  br label %34, !llvm.loop !14

58:                                               ; preds = %38
  %59 = load i32, ptr %2, align 4, !tbaa !5
  call void @_Z5solveii(i32 noundef 0, i32 noundef %59)
  %60 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  %61 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %60, ptr %61, align 8
  %62 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  %63 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %62, ptr %63, align 8
  %64 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  %65 = load ptr, ptr %64, align 8
  %66 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %67 = load ptr, ptr %66, align 8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %65, ptr %67)
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #8
  %68 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  %69 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %68, ptr %69, align 8
  br label %70

70:                                               ; preds = %94, %58
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #8
  %71 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  %72 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %71, ptr %72, align 8
  %73 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #8
  br i1 %73, label %75, label %74

74:                                               ; preds = %70
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  br label %96

75:                                               ; preds = %70
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #8
  %76 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %12, ptr align 4 %76, i64 8, i1 false)
  %77 = getelementptr inbounds %"struct.std::pair", ptr %12, i32 0, i32 0
  %78 = load i32, ptr %77, align 4, !tbaa !15
  %79 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %78)
  %80 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %79, ptr noundef @.str)
  %81 = getelementptr inbounds %"struct.std::pair", ptr %12, i32 0, i32 1
  %82 = load i32, ptr %81, align 4, !tbaa !17
  %83 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %80, i32 noundef %82)
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #8
  %84 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %10, i64 noundef 1) #8
  %85 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %84, ptr %85, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #8
  %86 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  %87 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %14, i32 0, i32 0
  store ptr %86, ptr %87, align 8
  %88 = call noundef zeroext i1 @_ZN9__gnu_cxxeqIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %14) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #8
  br i1 %88, label %89, label %91

89:                                               ; preds = %75
  %90 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %93

91:                                               ; preds = %75
  %92 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  br label %93

93:                                               ; preds = %91, %89
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  br label %94

94:                                               ; preds = %93
  %95 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #8
  br label %70, !llvm.loop !18

96:                                               ; preds = %74
  call void @llvm.lifetime.end.p0(i64 800040, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %97 = load i32, ptr %1, align 4
  ret i32 %97
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7SegTreeC2Ei(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) unnamed_addr #1 align 2

; 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) #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7SegTree6updateEii(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef, i32 noundef) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxeqIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

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" }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { "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 = { mustprogress norecurse 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 #6 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #7 = { 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 #8 = { 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 = !{i64 0, i64 4, !5, i64 8, i64 8, !12}
!12 = !{!13, !13, i64 0}
!13 = !{!"any pointer", !7, i64 0}
!14 = distinct !{!14, !10}
!15 = !{!16, !6, i64 0}
!16 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!17 = !{!16, !6, i64 4}
!18 = distinct !{!18, !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.SegTree = type { i32, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@st = external dso_local global [2 x %class.SegTree], align 16
@ans = external dso_local global %"class.std::vector", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7SegTreeD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5solveii(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #5 {
  %1 = alloca i32, align 4
  %2 = alloca [200010 x i32], align 16
  %3 = alloca %class.SegTree, align 8
  %4 = alloca %class.SegTree, align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  call void @llvm.lifetime.start.p0(i64 800040, ptr nonnull %2) #8
  %9 = 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)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.lcssa15 = phi i32 [ %10, %0 ], [ %19, %.lr.ph ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #8
  %12 = sdiv i32 %.lcssa15, 2
  call void @_ZN7SegTreeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %3, i32 noundef %12)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(16) @st, ptr noundef nonnull align 8 dereferenceable(16) %3, i64 16, i1 false), !tbaa.struct !9
  call void @_ZN7SegTreeD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %3) #8
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #8
  %13 = load i32, ptr %1, align 4, !tbaa !5
  %14 = sdiv i32 %13, 2
  call void @_ZN7SegTreeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %4, i32 noundef %14)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(16) getelementptr inbounds (i8, ptr @st, i64 16), ptr noundef nonnull align 8 dereferenceable(16) %4, i64 16, i1 false), !tbaa.struct !9
  call void @_ZN7SegTreeD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %4) #8
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #8
  %15 = load i32, ptr %1, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph19, label %._crit_edge20

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %17 = getelementptr inbounds [200010 x i32], ptr %2, i64 0, i64 %indvars.iv
  %18 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %17)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %19 = load i32, ptr %1, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = icmp slt i64 %indvars.iv.next, %20
  br i1 %21, label %.lr.ph, label %._crit_edge, !llvm.loop !12

._crit_edge20:                                    ; preds = %35, %._crit_edge
  %.lcssa = phi i32 [ %15, %._crit_edge ], [ %36, %35 ]
  call void @_Z5solveii(i32 noundef 0, i32 noundef %.lcssa)
  %22 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  %23 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %22, ptr %23)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #8
  %24 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  store ptr %24, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  %25 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  store ptr %25, ptr %6, align 8
  %26 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  br i1 %26, label %.lr.ph23, label %._crit_edge24

.lr.ph19:                                         ; preds = %._crit_edge, %35
  %27 = phi i32 [ %36, %35 ], [ %15, %._crit_edge ]
  %indvars.iv28 = phi i64 [ %indvars.iv.next29, %35 ], [ 0, %._crit_edge ]
  %28 = trunc nuw nsw i64 %indvars.iv28 to i32
  %29 = and i32 %28, 1
  %30 = icmp eq i32 %29, 0
  br i1 %30, label %31, label %35

31:                                               ; preds = %.lr.ph19
  %32 = lshr exact i32 %28, 1
  %33 = getelementptr inbounds [200010 x i32], ptr %2, i64 0, i64 %indvars.iv28
  %34 = load i32, ptr %33, align 4, !tbaa !5
  call void @_ZN7SegTree6updateEii(ptr noundef nonnull align 8 dereferenceable(16) @st, i32 noundef %32, i32 noundef %34)
  %.pre = load i32, ptr %1, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %.lr.ph19, %31
  %36 = phi i32 [ %27, %.lr.ph19 ], [ %.pre, %31 ]
  %indvars.iv.next29 = add nuw nsw i64 %indvars.iv28, 1
  %37 = sext i32 %36 to i64
  %38 = icmp slt i64 %indvars.iv.next29, %37
  br i1 %38, label %.lr.ph19, label %._crit_edge20, !llvm.loop !14

._crit_edge24:                                    ; preds = %50, %._crit_edge20
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 800040, ptr nonnull %2) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  ret i32 0

.lr.ph23:                                         ; preds = %._crit_edge20, %50
  %39 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  %.sroa.0.0.copyload = load i32, ptr %39, align 4
  %.sroa.4.0..sroa_idx = getelementptr inbounds i8, ptr %39, i64 4
  %.sroa.4.0.copyload = load i32, ptr %.sroa.4.0..sroa_idx, align 4
  %40 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.sroa.0.0.copyload)
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %40, ptr noundef nonnull @.str)
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %41, i32 noundef %.sroa.4.0.copyload)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #8
  %43 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %5, i64 noundef 1) #8
  store ptr %43, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #8
  %44 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  store ptr %44, ptr %8, align 8
  %45 = call noundef zeroext i1 @_ZN9__gnu_cxxeqIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #8
  br i1 %45, label %46, label %48

46:                                               ; preds = %.lr.ph23
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %50

48:                                               ; preds = %.lr.ph23
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  br label %50

50:                                               ; preds = %48, %46
  %51 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  %52 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @ans) #8
  store ptr %52, ptr %6, align 8
  %53 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  br i1 %53, label %.lr.ph23, label %._crit_edge24, !llvm.loop !15
}

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 #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7SegTreeC2Ei(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress 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) #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7SegTree6updateEii(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef, i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxeqIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

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" }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { "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 = { mustprogress norecurse 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 #6 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #7 = { 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 #8 = { 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 8, i64 8, !10}
!10 = !{!11, !11, i64 0}
!11 = !{!"any pointer", !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = distinct !{!15, !13}


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