; LLVM IR from DionysiosB/CodeForces :: 2024C-ConcatenationOfArrays (main)

; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"struct.std::pair" = type { i64, %"struct.std::pair.0" }
%"struct.std::pair.0" = type { i64, i64 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %15

15:                                               ; preds = %99, %0
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = add nsw i64 %16, -1
  store i64 %17, ptr %2, align 8, !tbaa !5
  %18 = icmp ne i64 %16, 0
  br i1 %18, label %19, label %102

19:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #6
  %21 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  call void @_ZNSaISt4pairIlS_IllEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEC2EmRKS3_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %21, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %22 unwind label %28

22:                                               ; preds = %19
  call void @_ZNSt15__new_allocatorISt4pairIlS0_IllEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %23

23:                                               ; preds = %51, %22
  %24 = load i64, ptr %8, align 8, !tbaa !5
  %25 = load i64, ptr %3, align 8, !tbaa !5
  %26 = icmp slt i64 %24, %25
  br i1 %26, label %32, label %27

27:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %58

28:                                               ; preds = %19
  %29 = landingpad { ptr, i32 }
          cleanup
  %30 = extractvalue { ptr, i32 } %29, 0
  store ptr %30, ptr %6, align 8
  %31 = extractvalue { ptr, i32 } %29, 1
  store i32 %31, ptr %7, align 4
  call void @_ZNSt15__new_allocatorISt4pairIlS0_IllEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  br label %101

32:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  %33 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %9, ptr noundef %10)
          to label %34 unwind label %54

34:                                               ; preds = %32
  %35 = load i64, ptr %9, align 8, !tbaa !5
  %36 = load i64, ptr %10, align 8, !tbaa !5
  %37 = add nsw i64 %35, %36
  %38 = load i64, ptr %8, align 8, !tbaa !5
  %39 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %38) #6
  %40 = getelementptr inbounds %"struct.std::pair", ptr %39, i32 0, i32 0
  store i64 %37, ptr %40, align 8, !tbaa !9
  %41 = load i64, ptr %9, align 8, !tbaa !5
  %42 = load i64, ptr %8, align 8, !tbaa !5
  %43 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %42) #6
  %44 = getelementptr inbounds %"struct.std::pair", ptr %43, i32 0, i32 1
  %45 = getelementptr inbounds %"struct.std::pair.0", ptr %44, i32 0, i32 0
  store i64 %41, ptr %45, align 8, !tbaa !12
  %46 = load i64, ptr %10, align 8, !tbaa !5
  %47 = load i64, ptr %8, align 8, !tbaa !5
  %48 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %47) #6
  %49 = getelementptr inbounds %"struct.std::pair", ptr %48, i32 0, i32 1
  %50 = getelementptr inbounds %"struct.std::pair.0", ptr %49, i32 0, i32 1
  store i64 %46, ptr %50, align 8, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %51

51:                                               ; preds = %34
  %52 = load i64, ptr %8, align 8, !tbaa !5
  %53 = add nsw i64 %52, 1
  store i64 %53, ptr %8, align 8, !tbaa !5
  br label %23, !llvm.loop !14

54:                                               ; preds = %32
  %55 = landingpad { ptr, i32 }
          cleanup
  %56 = extractvalue { ptr, i32 } %55, 0
  store ptr %56, ptr %6, align 8
  %57 = extractvalue { ptr, i32 } %55, 1
  store i32 %57, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %100

58:                                               ; preds = %27
  %59 = call ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %60 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %59, ptr %60, align 8
  %61 = call ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %62 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %61, ptr %62, align 8
  %63 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %64 = load ptr, ptr %63, align 8
  %65 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %66 = load ptr, ptr %65, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIlS2_IllEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr %64, ptr %66)
          to label %67 unwind label %73

67:                                               ; preds = %58
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  store i64 0, ptr %13, align 8, !tbaa !5
  br label %68

68:                                               ; preds = %90, %67
  %69 = load i64, ptr %13, align 8, !tbaa !5
  %70 = load i64, ptr %3, align 8, !tbaa !5
  %71 = icmp slt i64 %69, %70
  br i1 %71, label %77, label %72

72:                                               ; preds = %68
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br label %97

73:                                               ; preds = %97, %58
  %74 = landingpad { ptr, i32 }
          cleanup
  %75 = extractvalue { ptr, i32 } %74, 0
  store ptr %75, ptr %6, align 8
  %76 = extractvalue { ptr, i32 } %74, 1
  store i32 %76, ptr %7, align 4
  br label %100

77:                                               ; preds = %68
  %78 = load i64, ptr %13, align 8, !tbaa !5
  %79 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %78) #6
  %80 = getelementptr inbounds %"struct.std::pair", ptr %79, i32 0, i32 1
  %81 = getelementptr inbounds %"struct.std::pair.0", ptr %80, i32 0, i32 0
  %82 = load i64, ptr %81, align 8, !tbaa !12
  %83 = load i64, ptr %13, align 8, !tbaa !5
  %84 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %83) #6
  %85 = getelementptr inbounds %"struct.std::pair", ptr %84, i32 0, i32 1
  %86 = getelementptr inbounds %"struct.std::pair.0", ptr %85, i32 0, i32 1
  %87 = load i64, ptr %86, align 8, !tbaa !13
  %88 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %82, i64 noundef %87)
          to label %89 unwind label %93

89:                                               ; preds = %77
  br label %90

90:                                               ; preds = %89
  %91 = load i64, ptr %13, align 8, !tbaa !5
  %92 = add nsw i64 %91, 1
  store i64 %92, ptr %13, align 8, !tbaa !5
  br label %68, !llvm.loop !16

93:                                               ; preds = %77
  %94 = landingpad { ptr, i32 }
          cleanup
  %95 = extractvalue { ptr, i32 } %94, 0
  store ptr %95, ptr %6, align 8
  %96 = extractvalue { ptr, i32 } %94, 1
  store i32 %96, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br label %100

97:                                               ; preds = %72
  %98 = invoke i32 @puts(ptr noundef @.str.3)
          to label %99 unwind label %73

99:                                               ; preds = %97
  call void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  br label %15, !llvm.loop !17

100:                                              ; preds = %93, %73, %54
  call void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  br label %101

101:                                              ; preds = %100, %28
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %104

102:                                              ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %103 = load i32, ptr %1, align 4
  ret i32 %103

104:                                              ; preds = %101
  %105 = load ptr, ptr %6, align 8
  %106 = load i32, ptr %7, align 4
  %107 = insertvalue { ptr, i32 } poison, ptr %105, 0
  %108 = insertvalue { ptr, i32 } %107, i32 %106, 1
  resume { ptr, i32 } %108
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIlS_IllEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEC2EmRKS3_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; 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 noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIlS2_IllEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

declare i32 @printf(ptr noundef, ...) #2

declare i32 @puts(ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIlS0_IllEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { 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 #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 = { 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 = { 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 = { 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", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIlS_IllEE", !6, i64 0, !11, i64 8}
!11 = !{!"_ZTSSt4pairIllE", !6, i64 0, !6, i64 8}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !6, i64 16}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}
!17 = distinct !{!17, !15}


; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long, std::pair<long, long>>, std::allocator<std::pair<long, std::pair<long, long>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %8 = load i64, ptr %1, align 8, !tbaa !5
  %9 = add nsw i64 %8, -1
  store i64 %9, ptr %1, align 8, !tbaa !5
  %.not20 = icmp eq i64 %8, 0
  br i1 %.not20, label %._crit_edge23, label %.lr.ph22

.lr.ph22:                                         ; preds = %0, %._crit_edge19
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  %11 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaISt4pairIlS_IllEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEC2EmRKS3_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %11, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %12 unwind label %19

12:                                               ; preds = %.lr.ph22
  call void @_ZNSt15__new_allocatorISt4pairIlS0_IllEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = icmp sgt i64 %13, 0
  br i1 %14, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %12
  %15 = call ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %16 = call ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIlS2_IllEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr %15, ptr %16)
          to label %.preheader unwind label %38

.preheader:                                       ; preds = %._crit_edge
  %17 = load i64, ptr %2, align 8, !tbaa !5
  %18 = icmp sgt i64 %17, 0
  br i1 %18, label %.lr.ph18, label %._crit_edge19

19:                                               ; preds = %.lr.ph22
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIlS0_IllEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %50

.lr.ph:                                           ; preds = %12, %.lr.ph
  %.01416 = phi i64 [ %32, %.lr.ph ], [ 0, %12 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %5, ptr noundef nonnull %6)
  %22 = load i64, ptr %5, align 8, !tbaa !5
  %23 = load i64, ptr %6, align 8, !tbaa !5
  %24 = add nsw i64 %23, %22
  %25 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.01416) #6
  store i64 %24, ptr %25, align 8, !tbaa !9
  %26 = load i64, ptr %5, align 8, !tbaa !5
  %27 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.01416) #6
  %28 = getelementptr inbounds i8, ptr %27, i64 8
  store i64 %26, ptr %28, align 8, !tbaa !12
  %29 = load i64, ptr %6, align 8, !tbaa !5
  %30 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.01416) #6
  %31 = getelementptr inbounds i8, ptr %30, i64 16
  store i64 %29, ptr %31, align 8, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  %32 = add nuw nsw i64 %.01416, 1
  %33 = load i64, ptr %2, align 8, !tbaa !5
  %34 = icmp slt i64 %32, %33
  br i1 %34, label %.lr.ph, label %._crit_edge, !llvm.loop !14

._crit_edge19:                                    ; preds = %.lr.ph18, %.preheader
  %35 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.3)
  call void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  %36 = load i64, ptr %1, align 8, !tbaa !5
  %37 = add nsw i64 %36, -1
  store i64 %37, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %36, 0
  br i1 %.not, label %._crit_edge23, label %.lr.ph22, !llvm.loop !16

38:                                               ; preds = %._crit_edge
  %39 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %50

.lr.ph18:                                         ; preds = %.preheader, %.lr.ph18
  %.017 = phi i64 [ %47, %.lr.ph18 ], [ 0, %.preheader ]
  %40 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.017) #6
  %41 = getelementptr inbounds i8, ptr %40, i64 8
  %42 = load i64, ptr %41, align 8, !tbaa !12
  %43 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.017) #6
  %44 = getelementptr inbounds i8, ptr %43, i64 16
  %45 = load i64, ptr %44, align 8, !tbaa !13
  %46 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %42, i64 noundef %45)
  %47 = add nuw nsw i64 %.017, 1
  %48 = load i64, ptr %2, align 8, !tbaa !5
  %49 = icmp slt i64 %47, %48
  br i1 %49, label %.lr.ph18, label %._crit_edge19, !llvm.loop !17

50:                                               ; preds = %38, %19
  %.pn = phi { ptr, i32 } [ %39, %38 ], [ %20, %19 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn

._crit_edge23:                                    ; preds = %._crit_edge19, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  ret i32 0
}

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

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIlS_IllEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEC2EmRKS3_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; 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 noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIlS2_IllEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIlS0_IllEESaIS2_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIlS0_IllEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree 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 #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 = { 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 = { 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 = { 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", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIlS_IllEE", !6, i64 0, !11, i64 8}
!11 = !{!"_ZTSSt4pairIllE", !6, i64 0, !6, i64 8}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !6, i64 16}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}
!17 = distinct !{!17, !15}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass