; LLVM IR from plskz/competitive-programming :: Junior Training Sheet/A (225)

; 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::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" }
%"struct.std::pair" = type { i32, i32 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::pair", align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %16 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %17 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %18 = getelementptr i8, ptr %17, i64 -24
  %19 = load i64, ptr %18, align 8
  %20 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %19
  %21 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %20, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  %22 = 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 %3) #8
  store i32 0, ptr %3, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #8
  store i32 0, ptr %4, align 4, !tbaa !8
  %23 = load i32, ptr %2, align 4, !tbaa !8
  %24 = add nsw i32 %23, 1
  %25 = zext i32 %24 to i64
  %26 = call ptr @llvm.stacksave.p0()
  store ptr %26, ptr %5, align 8
  %27 = alloca %"struct.std::pair", i64 %25, align 16
  store i64 %25, ptr %6, align 8
  %28 = icmp eq i64 %25, 0
  br i1 %28, label %35, label %29

29:                                               ; preds = %0
  %30 = getelementptr inbounds %"struct.std::pair", ptr %27, i64 %25
  br label %31

31:                                               ; preds = %31, %29
  %32 = phi ptr [ %27, %29 ], [ %33, %31 ]
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %32)
  %33 = getelementptr inbounds %"struct.std::pair", ptr %32, i64 1
  %34 = icmp eq ptr %33, %30
  br i1 %34, label %35, label %31

35:                                               ; preds = %31, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #8
  store i32 0, ptr %7, align 4, !tbaa !8
  br label %36

36:                                               ; preds = %59, %35
  %37 = load i32, ptr %7, align 4, !tbaa !8
  %38 = load i32, ptr %2, align 4, !tbaa !8
  %39 = icmp slt i32 %37, %38
  br i1 %39, label %41, label %40

40:                                               ; preds = %36
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  br label %62

41:                                               ; preds = %36
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #8
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %42, ptr noundef nonnull align 4 dereferenceable(4) %9)
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #8
  %44 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %9)
  store i64 %44, ptr %10, align 4
  %45 = load i32, ptr %7, align 4, !tbaa !8
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds %"struct.std::pair", ptr %27, i64 %46
  %48 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %47, ptr noundef nonnull align 4 dereferenceable(8) %10) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  %49 = load i32, ptr %8, align 4, !tbaa !8
  %50 = icmp slt i32 %49, 0
  br i1 %50, label %51, label %54

51:                                               ; preds = %41
  %52 = load i32, ptr %4, align 4, !tbaa !8
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %4, align 4, !tbaa !8
  br label %57

54:                                               ; preds = %41
  %55 = load i32, ptr %3, align 4, !tbaa !8
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %3, align 4, !tbaa !8
  br label %57

57:                                               ; preds = %54, %51
  %58 = phi i32 [ %52, %51 ], [ %55, %54 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  br label %59

59:                                               ; preds = %57
  %60 = load i32, ptr %7, align 4, !tbaa !8
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %7, align 4, !tbaa !8
  br label %36, !llvm.loop !11

62:                                               ; preds = %40
  %63 = load i32, ptr %2, align 4, !tbaa !8
  %64 = sext i32 %63 to i64
  %65 = getelementptr inbounds %"struct.std::pair", ptr %27, i64 %64
  call void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef %27, ptr noundef %65)
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #8
  store i32 0, ptr %11, align 4, !tbaa !8
  %66 = load i32, ptr %4, align 4, !tbaa !8
  %67 = load i32, ptr %3, align 4, !tbaa !8
  %68 = sub nsw i32 %66, %67
  %69 = sub nsw i32 %68, 1
  %70 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %69)
  %71 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %70, i8 noundef signext 32)
  %72 = load i32, ptr %4, align 4, !tbaa !8
  %73 = mul nsw i32 %72, 2
  %74 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %71, i32 noundef %73)
  %75 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %74, i8 noundef signext 10)
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #8
  store i32 0, ptr %13, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #8
  %76 = load i32, ptr %4, align 4, !tbaa !8
  %77 = load i32, ptr %3, align 4, !tbaa !8
  %78 = sub nsw i32 %76, %77
  %79 = sub nsw i32 %78, 1
  store i32 %79, ptr %14, align 4, !tbaa !8
  %80 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %13, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %81 = load i32, ptr %80, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #8
  store i32 %81, ptr %12, align 4, !tbaa !8
  br label %82

82:                                               ; preds = %98, %62
  %83 = load i32, ptr %12, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #8
  %84 = load i32, ptr %4, align 4, !tbaa !8
  %85 = mul nsw i32 %84, 2
  store i32 %85, ptr %15, align 4, !tbaa !8
  %86 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %15)
  %87 = load i32, ptr %86, align 4, !tbaa !8
  %88 = icmp sle i32 %83, %87
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #8
  br i1 %88, label %90, label %89

89:                                               ; preds = %82
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #8
  br label %101

90:                                               ; preds = %82
  %91 = load i32, ptr %12, align 4, !tbaa !8
  %92 = sext i32 %91 to i64
  %93 = getelementptr inbounds %"struct.std::pair", ptr %27, i64 %92
  %94 = getelementptr inbounds %"struct.std::pair", ptr %93, i32 0, i32 1
  %95 = load i32, ptr %94, align 4, !tbaa !13
  %96 = load i32, ptr %11, align 4, !tbaa !8
  %97 = add nsw i32 %96, %95
  store i32 %97, ptr %11, align 4, !tbaa !8
  br label %98

98:                                               ; preds = %90
  %99 = load i32, ptr %12, align 4, !tbaa !8
  %100 = add nsw i32 %99, 1
  store i32 %100, ptr %12, align 4, !tbaa !8
  br label %82, !llvm.loop !15

101:                                              ; preds = %89
  %102 = load i32, ptr %11, align 4, !tbaa !8
  %103 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %102)
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #8
  %104 = load ptr, ptr %5, align 8
  call void @llvm.stackrestore.p0(ptr %104)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %105 = load i32, ptr %1, align 4
  ret i32 %105
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef, ptr noundef) #6

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #7

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #7

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

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 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !9, i64 4}
!14 = !{!"_ZTSSt4pairIiiE", !9, i64 0, !9, i64 4}
!15 = distinct !{!15, !12}


; 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::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" }
%"struct.std::pair" = type { i32, i32 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::pair", align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %9 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %10 = getelementptr i8, ptr %9, i64 -24
  %11 = load i64, ptr %10, align 8
  %12 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %11
  %13 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %12, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  %14 = 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)
  %15 = load i32, ptr %1, align 4, !tbaa !8
  %16 = add nsw i32 %15, 1
  %17 = zext i32 %16 to i64
  %18 = call ptr @llvm.stacksave.p0()
  %19 = alloca %"struct.std::pair", i64 %17, align 16
  %20 = icmp eq i32 %16, 0
  br i1 %20, label %.loopexit, label %21

21:                                               ; preds = %0
  %22 = getelementptr inbounds %"struct.std::pair", ptr %19, i64 %17
  br label %23

23:                                               ; preds = %23, %21
  %24 = phi ptr [ %19, %21 ], [ %25, %23 ]
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8) %24)
  %25 = getelementptr inbounds i8, ptr %24, i64 8
  %26 = icmp eq ptr %25, %22
  br i1 %26, label %.loopexit, label %23

.loopexit:                                        ; preds = %23, %0
  %27 = load i32, ptr %1, align 4, !tbaa !8
  %28 = icmp sgt i32 %27, 0
  br i1 %28, label %.lr.ph, label %.loopexit.._crit_edge_crit_edge

.loopexit.._crit_edge_crit_edge:                  ; preds = %.loopexit
  %.pre = sext i32 %27 to i64
  br label %._crit_edge

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %29 = xor i32 %.1, -1
  br label %._crit_edge

._crit_edge:                                      ; preds = %.loopexit.._crit_edge_crit_edge, %._crit_edge.loopexit
  %.pre-phi = phi i64 [ %.pre, %.loopexit.._crit_edge_crit_edge ], [ %51, %._crit_edge.loopexit ]
  %.020.lcssa = phi i32 [ 0, %.loopexit.._crit_edge_crit_edge ], [ %.121, %._crit_edge.loopexit ]
  %.019.lcssa = phi i32 [ -1, %.loopexit.._crit_edge_crit_edge ], [ %29, %._crit_edge.loopexit ]
  %30 = getelementptr inbounds %"struct.std::pair", ptr %19, i64 %.pre-phi
  call void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef nonnull %19, ptr noundef nonnull %30)
  %31 = add i32 %.020.lcssa, %.019.lcssa
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %31)
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %32, i8 noundef signext 32)
  %34 = shl nsw i32 %.020.lcssa, 1
  %35 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %33, i32 noundef %34)
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %35, i8 noundef signext 10)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #8
  store i32 0, ptr %5, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #8
  store i32 %31, ptr %6, align 4, !tbaa !8
  %37 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %38 = load i32, ptr %37, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #8
  store i32 %34, ptr %7, align 4, !tbaa !8
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %40 = load i32, ptr %39, align 4, !tbaa !8
  %.not29 = icmp sgt i32 %38, %40
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #8
  br i1 %.not29, label %._crit_edge34, label %.lr.ph33.preheader

.lr.ph33.preheader:                               ; preds = %._crit_edge
  %41 = sext i32 %38 to i64
  br label %.lr.ph33

.lr.ph:                                           ; preds = %.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.loopexit ]
  %.01925 = phi i32 [ %.1, %.lr.ph ], [ 0, %.loopexit ]
  %.02024 = phi i32 [ %.121, %.lr.ph ], [ 0, %.loopexit ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #8
  %42 = 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)
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %42, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #8
  %44 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
  store i64 %44, ptr %4, align 8
  %45 = getelementptr inbounds %"struct.std::pair", ptr %19, i64 %indvars.iv
  %46 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %45, ptr noundef nonnull align 4 dereferenceable(8) %4) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #8
  %47 = load i32, ptr %2, align 4, !tbaa !8
  %48 = icmp sgt i32 %47, -1
  %.lobit = lshr i32 %47, 31
  %.121 = add nuw nsw i32 %.lobit, %.02024
  %49 = zext i1 %48 to i32
  %.1 = add nuw nsw i32 %.01925, %49
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %50 = load i32, ptr %1, align 4, !tbaa !8
  %51 = sext i32 %50 to i64
  %52 = icmp slt i64 %indvars.iv.next, %51
  br i1 %52, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !11

._crit_edge34:                                    ; preds = %.lr.ph33, %._crit_edge
  %.017.lcssa = phi i32 [ 0, %._crit_edge ], [ %56, %.lr.ph33 ]
  %53 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.017.lcssa)
  call void @llvm.stackrestore.p0(ptr %18)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  ret i32 0

.lr.ph33:                                         ; preds = %.lr.ph33.preheader, %.lr.ph33
  %indvars.iv39 = phi i64 [ %41, %.lr.ph33.preheader ], [ %indvars.iv.next40, %.lr.ph33 ]
  %.01730 = phi i32 [ 0, %.lr.ph33.preheader ], [ %56, %.lr.ph33 ]
  %54 = getelementptr inbounds %"struct.std::pair", ptr %19, i64 %indvars.iv39, i32 1
  %55 = load i32, ptr %54, align 4, !tbaa !13
  %56 = add nsw i32 %55, %.01730
  %indvars.iv.next40 = add nsw i64 %indvars.iv39, 1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #8
  store i32 %34, ptr %7, align 4, !tbaa !8
  %57 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %58 = load i32, ptr %57, align 4, !tbaa !8
  %59 = sext i32 %58 to i64
  %.not.not = icmp slt i64 %indvars.iv39, %59
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #8
  br i1 %.not.not, label %.lr.ph33, label %._crit_edge34, !llvm.loop !15
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

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 #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXsr6__and_ISt37__is_implicitly_default_constructibleIT_ES3_IT0_EEE5valueEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef, ptr noundef) local_unnamed_addr #6

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #7

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #7

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

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 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !9, i64 4}
!14 = !{!"_ZTSSt4pairIiiE", !9, i64 0, !9, i64 4}
!15 = distinct !{!15, !12}


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