; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2019-20/Feb/Bronze (swap)

; 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.std::pair" = type { i32, i32 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@K = external dso_local global i32, align 4
@A = external dso_local global %"struct.std::pair", align 4
@B = external dso_local global %"struct.std::pair", align 4
@nex = external dso_local global %"class.std::vector", align 8
@stor = external dso_local global %"class.std::vector.3", align 8
@.str.12 = external hidden unnamed_addr constant [1 x i8], align 1

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #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 @_ZN2io5setIOENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z5applySt6vectorIiSaIiEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.std::vector", align 8
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca %"class.std::vector", align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #7
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #7
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef @.str.12, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %13 unwind label %56

13:                                               ; preds = %0
  invoke void @_ZN2io5setIOENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %2)
          to label %14 unwind label %60

14:                                               ; preds = %13
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #7
  call void @_ZN5input2reIiJiSt4pairIiiES2_EEEvRT_DpRT0_(ptr noundef nonnull align 4 dereferenceable(4) @N, ptr noundef nonnull align 4 dereferenceable(4) @K, ptr noundef nonnull align 4 dereferenceable(8) @A, ptr noundef nonnull align 4 dereferenceable(8) @B)
  %15 = load i32, ptr @A, align 4, !tbaa !5
  %16 = add nsw i32 %15, -1
  store i32 %16, ptr @A, align 4, !tbaa !5
  %17 = load i32, ptr getelementptr inbounds (%"struct.std::pair", ptr @A, i32 0, i32 1), align 4, !tbaa !10
  %18 = add nsw i32 %17, -1
  store i32 %18, ptr getelementptr inbounds (%"struct.std::pair", ptr @A, i32 0, i32 1), align 4, !tbaa !10
  %19 = load i32, ptr @B, align 4, !tbaa !5
  %20 = add nsw i32 %19, -1
  store i32 %20, ptr @B, align 4, !tbaa !5
  %21 = load i32, ptr getelementptr inbounds (%"struct.std::pair", ptr @B, i32 0, i32 1), align 4, !tbaa !10
  %22 = add nsw i32 %21, -1
  store i32 %22, ptr getelementptr inbounds (%"struct.std::pair", ptr @B, i32 0, i32 1), align 4, !tbaa !10
  %23 = load i32, ptr @N, align 4, !tbaa !11
  %24 = sext i32 %23 to i64
  call void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) @nex, i64 noundef %24)
  %25 = call ptr @_ZSt5beginISt6vectorIiSaIiEEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24) @nex)
  %26 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %25, ptr %26, align 8
  %27 = call ptr @_ZSt3endISt6vectorIiSaIiEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24) @nex)
  %28 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %27, ptr %28, align 8
  %29 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  %30 = load ptr, ptr %29, align 8
  %31 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8
  call void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr %30, ptr %32, i32 noundef 0)
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) @stor, ptr noundef nonnull align 8 dereferenceable(24) @nex)
  br label %33

33:                                               ; preds = %90, %14
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #7
  %34 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24) @stor) #7
  call void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %9, ptr noundef nonnull align 8 dereferenceable(24) %34)
  call void @_Z5applySt6vectorIiSaIiEE(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %8, ptr noundef %9)
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #7
  %35 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @stor, i64 noundef 0) #7
  %36 = invoke noundef zeroext i1 @_ZSteqIiSaIiEEbRKSt6vectorIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(24) %35, ptr noundef nonnull align 8 dereferenceable(24) %8)
          to label %37 unwind label %65

37:                                               ; preds = %33
  br i1 %36, label %43, label %38

38:                                               ; preds = %37
  %39 = call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @stor) #7
  %40 = trunc i64 %39 to i32
  %41 = load i32, ptr @K, align 4, !tbaa !11
  %42 = icmp sgt i32 %40, %41
  br i1 %42, label %43, label %89

43:                                               ; preds = %38, %37
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #7
  %44 = load i32, ptr @K, align 4, !tbaa !11
  %45 = call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @stor) #7
  %46 = trunc i64 %45 to i32
  %47 = srem i32 %44, %46
  %48 = sext i32 %47 to i64
  %49 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @stor, i64 noundef %48) #7
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 8 dereferenceable(24) %49)
          to label %50 unwind label %69

50:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  store i32 0, ptr %11, align 4, !tbaa !11
  br label %51

51:                                               ; preds = %80, %50
  %52 = load i32, ptr %11, align 4, !tbaa !11
  %53 = load i32, ptr @N, align 4, !tbaa !11
  %54 = icmp slt i32 %52, %53
  br i1 %54, label %73, label %55

55:                                               ; preds = %51
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %87

56:                                               ; preds = %0
  %57 = landingpad { ptr, i32 }
          cleanup
  %58 = extractvalue { ptr, i32 } %57, 0
  store ptr %58, ptr %4, align 8
  %59 = extractvalue { ptr, i32 } %57, 1
  store i32 %59, ptr %5, align 4
  br label %64

60:                                               ; preds = %13
  %61 = landingpad { ptr, i32 }
          cleanup
  %62 = extractvalue { ptr, i32 } %61, 0
  store ptr %62, ptr %4, align 8
  %63 = extractvalue { ptr, i32 } %61, 1
  store i32 %63, ptr %5, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  br label %64

64:                                               ; preds = %60, %56
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #7
  br label %92

65:                                               ; preds = %89, %33
  %66 = landingpad { ptr, i32 }
          cleanup
  %67 = extractvalue { ptr, i32 } %66, 0
  store ptr %67, ptr %4, align 8
  %68 = extractvalue { ptr, i32 } %66, 1
  store i32 %68, ptr %5, align 4
  br label %91

69:                                               ; preds = %43
  %70 = landingpad { ptr, i32 }
          cleanup
  %71 = extractvalue { ptr, i32 } %70, 0
  store ptr %71, ptr %4, align 8
  %72 = extractvalue { ptr, i32 } %70, 1
  store i32 %72, ptr %5, align 4
  br label %88

73:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  %74 = load i32, ptr %11, align 4, !tbaa !11
  %75 = sext i32 %74 to i64
  %76 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %10, i64 noundef %75) #7
  %77 = load i32, ptr %76, align 4, !tbaa !11
  %78 = add nsw i32 %77, 1
  store i32 %78, ptr %12, align 4, !tbaa !11
  invoke void @_ZN6output2psIiJEEEvRKT_DpRKT0_(ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %79 unwind label %83

79:                                               ; preds = %73
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %80

80:                                               ; preds = %79
  %81 = load i32, ptr %11, align 4, !tbaa !11
  %82 = add nsw i32 %81, 1
  store i32 %82, ptr %11, align 4, !tbaa !11
  br label %51, !llvm.loop !12

83:                                               ; preds = %73
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %4, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #7
  br label %88

87:                                               ; preds = %55
  call void @exit(i32 noundef 0) #8
  unreachable

88:                                               ; preds = %83, %69
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #7
  br label %91

89:                                               ; preds = %38
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) @stor, ptr noundef nonnull align 8 dereferenceable(24) %8)
          to label %90 unwind label %65

90:                                               ; preds = %89
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #7
  br label %33, !llvm.loop !14

91:                                               ; preds = %88, %65
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #7
  br label %92

92:                                               ; preds = %91, %64
  %93 = load ptr, ptr %4, align 8
  %94 = load i32, ptr %5, align 4
  %95 = insertvalue { ptr, i32 } poison, ptr %93, 0
  %96 = insertvalue { ptr, i32 } %95, i32 %94, 1
  resume { ptr, i32 } %96
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5input2reIiJiSt4pairIiiES2_EEEvRT_DpRT0_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr, ptr, i32 noundef) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt5beginISt6vectorIiSaIiEEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24)) #4

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt3endISt6vectorIiSaIiEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24)) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZSteqIiSaIiEEbRKSt6vectorIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6output2psIiJEEEvRKT_DpRKT0_(ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

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 = { 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 #4 = { 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 #5 = { 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 #6 = { noreturn nounwind "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 #7 = { nounwind }
attributes #8 = { noreturn 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, !7, i64 0}
!6 = !{!"_ZTSSt4pairIiiE", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 4}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


; 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.std::pair" = type { i32, i32 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@N = external dso_local global i32, align 4
@K = external dso_local global i32, align 4
@A = external dso_local global %"struct.std::pair", align 4
@B = external dso_local global %"struct.std::pair", align 4
@nex = external dso_local global %"class.std::vector", align 8
@stor = external dso_local global %"class.std::vector.3", align 8
@.str.12 = external hidden unnamed_addr constant [1 x i8], align 1

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress 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 @_ZN2io5setIOENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z5applySt6vectorIiSaIiEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress norecurse noreturn uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::allocator", align 1
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #7
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #7
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull @.str.12, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %7 unwind label %35

7:                                                ; preds = %0
  invoke void @_ZN2io5setIOENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull %1)
          to label %8 unwind label %37

8:                                                ; preds = %7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #7
  call void @_ZN5input2reIiJiSt4pairIiiES2_EEEvRT_DpRT0_(ptr noundef nonnull align 4 dereferenceable(4) @N, ptr noundef nonnull align 4 dereferenceable(4) @K, ptr noundef nonnull align 4 dereferenceable(8) @A, ptr noundef nonnull align 4 dereferenceable(8) @B)
  %9 = load <2 x i32>, ptr @A, align 4, !tbaa !5
  %10 = add nsw <2 x i32> %9, <i32 -1, i32 -1>
  store <2 x i32> %10, ptr @A, align 4, !tbaa !5
  %11 = load <2 x i32>, ptr @B, align 4, !tbaa !5
  %12 = add nsw <2 x i32> %11, <i32 -1, i32 -1>
  store <2 x i32> %12, ptr @B, align 4, !tbaa !5
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  call void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) @nex, i64 noundef %14)
  %15 = call ptr @_ZSt5beginISt6vectorIiSaIiEEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24) @nex)
  %16 = call ptr @_ZSt3endISt6vectorIiSaIiEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24) @nex)
  call void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr %15, ptr %16, i32 noundef 0)
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) @stor, ptr noundef nonnull align 8 dereferenceable(24) @nex)
  br label %17

17:                                               ; preds = %55, %8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #7
  %18 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24) @stor) #7
  call void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(24) %18)
  call void @_Z5applySt6vectorIiSaIiEE(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %3, ptr noundef nonnull %4)
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  %19 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @stor, i64 noundef 0) #7
  %20 = invoke noundef zeroext i1 @_ZSteqIiSaIiEEbRKSt6vectorIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(24) %19, ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %21 unwind label %40

21:                                               ; preds = %17
  br i1 %20, label %._crit_edge17, label %22

._crit_edge17:                                    ; preds = %21
  %.pre = load i32, ptr @K, align 4, !tbaa !5
  br label %split

22:                                               ; preds = %21
  %23 = call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @stor) #7
  %24 = trunc i64 %23 to i32
  %25 = load i32, ptr @K, align 4, !tbaa !5
  %26 = icmp slt i32 %25, %24
  br i1 %26, label %split, label %54

split:                                            ; preds = %22, %._crit_edge17
  %27 = phi i32 [ %.pre, %._crit_edge17 ], [ %25, %22 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #7
  %28 = call noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @stor) #7
  %29 = trunc i64 %28 to i32
  %30 = srem i32 %27, %29
  %31 = sext i32 %30 to i64
  %32 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @stor, i64 noundef %31) #7
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 8 dereferenceable(24) %32)
          to label %.preheader unwind label %42

.preheader:                                       ; preds = %split
  %33 = load i32, ptr @N, align 4, !tbaa !5
  %34 = icmp sgt i32 %33, 0
  br i1 %34, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %47, %.preheader
  call void @exit(i32 noundef 0) #8
  unreachable

35:                                               ; preds = %0
  %36 = landingpad { ptr, i32 }
          cleanup
  br label %39

37:                                               ; preds = %7
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  br label %39

39:                                               ; preds = %37, %35
  %.pn = phi { ptr, i32 } [ %38, %37 ], [ %36, %35 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #7
  br label %57

40:                                               ; preds = %54, %17
  %41 = landingpad { ptr, i32 }
          cleanup
  br label %56

42:                                               ; preds = %split
  %43 = landingpad { ptr, i32 }
          cleanup
  br label %53

.lr.ph:                                           ; preds = %.preheader, %47
  %indvars.iv = phi i64 [ %indvars.iv.next, %47 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #7
  %44 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %indvars.iv) #7
  %45 = load i32, ptr %44, align 4, !tbaa !5
  %46 = add nsw i32 %45, 1
  store i32 %46, ptr %6, align 4, !tbaa !5
  invoke void @_ZN6output2psIiJEEEvRKT_DpRKT0_(ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %47 unwind label %51

47:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %48 = load i32, ptr @N, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = icmp slt i64 %indvars.iv.next, %49
  br i1 %50, label %.lr.ph, label %._crit_edge, !llvm.loop !9

51:                                               ; preds = %.lr.ph
  %52 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  br label %53

53:                                               ; preds = %51, %42
  %.pn11 = phi { ptr, i32 } [ %52, %51 ], [ %43, %42 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  br label %56

54:                                               ; preds = %22
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24) @stor, ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %55 unwind label %40

55:                                               ; preds = %54
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  br label %17, !llvm.loop !11

56:                                               ; preds = %53, %40
  %.pn11.pn = phi { ptr, i32 } [ %.pn11, %53 ], [ %41, %40 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  br label %57

57:                                               ; preds = %56, %39
  %.pn11.pn.pn = phi { ptr, i32 } [ %.pn11.pn, %56 ], [ %.pn, %39 ]
  resume { ptr, i32 } %.pn11.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5input2reIiJiSt4pairIiiES2_EEEvRT_DpRT0_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr, ptr, i32 noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt5beginISt6vectorIiSaIiEEEDTcldtfp_5beginEERT_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local ptr @_ZSt3endISt6vectorIiSaIiEEEDTcldtfp_3endEERT_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EE9push_backERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZSteqIiSaIiEEbRKSt6vectorIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IiSaIiEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6output2psIiJEEEvRKT_DpRKT0_(ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { mustprogress norecurse noreturn 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 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 #5 = { 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 #6 = { noreturn nounwind "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 #7 = { nounwind }
attributes #8 = { noreturn 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: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass