; LLVM IR from VastoLorde95/Competitive-Programming :: Codejam/2017/Qualification/C/C.ll (Z5solvev)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::pair" = type { i64, i64 }
%"class.std::reverse_iterator" = type { %"struct.std::_Rb_tree_iterator" }
%"struct.std::_Rb_tree_iterator" = type { ptr }

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::map", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair", align 8
  %7 = alloca %"class.std::reverse_iterator", align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 8 dereferenceable(8) %2)
  call void @llvm.lifetime.start.p0(i64 48, ptr %3) #5
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %15 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %1)
          to label %16 unwind label %35

16:                                               ; preds = %0
  store i64 1, ptr %15, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %91, %16
  br label %18

18:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 16, ptr %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE6rbeginEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %7, ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %19 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt16reverse_iteratorISt17_Rb_tree_iteratorISt4pairIKxxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %20 unwind label %39

20:                                               ; preds = %18
  invoke void @_ZNSt4pairIxxEC2IKxxTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE18_ConstructiblePairIS4_S5_EEclsr6_PCCFPIS4_S5_EE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS_IS4_S5_E(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef nonnull align 8 dereferenceable(16) %19)
          to label %21 unwind label %39

21:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  %22 = getelementptr inbounds %"struct.std::pair", ptr %6, i32 0, i32 0
  %23 = invoke noundef i64 @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5eraseERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %22)
          to label %24 unwind label %43

24:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  %25 = getelementptr inbounds %"struct.std::pair", ptr %6, i32 0, i32 0
  %26 = load i64, ptr %25, align 8, !tbaa !9
  store i64 %26, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %27 = getelementptr inbounds %"struct.std::pair", ptr %6, i32 0, i32 1
  %28 = load i64, ptr %27, align 8, !tbaa !11
  store i64 %28, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %29 = load i64, ptr %8, align 8, !tbaa !5
  %30 = srem i64 %29, 2
  %31 = icmp ne i64 %30, 0
  br i1 %31, label %32, label %47

32:                                               ; preds = %24
  %33 = load i64, ptr %8, align 8, !tbaa !5
  %34 = sdiv i64 %33, 2
  store i64 %34, ptr %11, align 8, !tbaa !5
  store i64 %34, ptr %10, align 8, !tbaa !5
  br label %52

35:                                               ; preds = %0
  %36 = landingpad { ptr, i32 }
          cleanup
  %37 = extractvalue { ptr, i32 } %36, 0
  store ptr %37, ptr %4, align 8
  %38 = extractvalue { ptr, i32 } %36, 1
  store i32 %38, ptr %5, align 4
  br label %94

39:                                               ; preds = %20, %18
  %40 = landingpad { ptr, i32 }
          cleanup
  %41 = extractvalue { ptr, i32 } %40, 0
  store ptr %41, ptr %4, align 8
  %42 = extractvalue { ptr, i32 } %40, 1
  store i32 %42, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %92

43:                                               ; preds = %21
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %4, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %5, align 4
  br label %92

47:                                               ; preds = %24
  %48 = load i64, ptr %8, align 8, !tbaa !5
  %49 = sdiv i64 %48, 2
  store i64 %49, ptr %11, align 8, !tbaa !5
  store i64 %49, ptr %10, align 8, !tbaa !5
  %50 = load i64, ptr %10, align 8, !tbaa !5
  %51 = add nsw i64 %50, -1
  store i64 %51, ptr %10, align 8, !tbaa !5
  br label %52

52:                                               ; preds = %47, %32
  %53 = load i64, ptr %9, align 8, !tbaa !5
  %54 = load i64, ptr %2, align 8, !tbaa !5
  %55 = icmp sge i64 %53, %54
  br i1 %55, label %56, label %75

56:                                               ; preds = %52
  %57 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %58 unwind label %71

58:                                               ; preds = %56
  %59 = load i64, ptr %57, align 8, !tbaa !5
  %60 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %59)
          to label %61 unwind label %71

61:                                               ; preds = %58
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %60, i8 noundef signext 32)
          to label %63 unwind label %71

63:                                               ; preds = %61
  %64 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %65 unwind label %71

65:                                               ; preds = %63
  %66 = load i64, ptr %64, align 8, !tbaa !5
  %67 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %62, i64 noundef %66)
          to label %68 unwind label %71

68:                                               ; preds = %65
  %69 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %67, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %70 unwind label %71

70:                                               ; preds = %68
  store i32 1, ptr %12, align 4
  br label %89

71:                                               ; preds = %81, %75, %68, %65, %63, %61, %58, %56
  %72 = landingpad { ptr, i32 }
          cleanup
  %73 = extractvalue { ptr, i32 } %72, 0
  store ptr %73, ptr %4, align 8
  %74 = extractvalue { ptr, i32 } %72, 1
  store i32 %74, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %92

75:                                               ; preds = %52
  %76 = load i64, ptr %9, align 8, !tbaa !5
  %77 = load i64, ptr %2, align 8, !tbaa !5
  %78 = sub nsw i64 %77, %76
  store i64 %78, ptr %2, align 8, !tbaa !5
  %79 = load i64, ptr %9, align 8, !tbaa !5
  %80 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %81 unwind label %71

81:                                               ; preds = %75
  %82 = load i64, ptr %80, align 8, !tbaa !5
  %83 = add nsw i64 %82, %79
  store i64 %83, ptr %80, align 8, !tbaa !5
  %84 = load i64, ptr %9, align 8, !tbaa !5
  %85 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %86 unwind label %71

86:                                               ; preds = %81
  %87 = load i64, ptr %85, align 8, !tbaa !5
  %88 = add nsw i64 %87, %84
  store i64 %88, ptr %85, align 8, !tbaa !5
  store i32 0, ptr %12, align 4
  br label %89

89:                                               ; preds = %86, %70
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %6) #5
  %90 = load i32, ptr %12, align 4
  switch i32 %90, label %93 [
    i32 0, label %91
  ]

91:                                               ; preds = %89
  br label %17, !llvm.loop !12

92:                                               ; preds = %71, %43, %39
  call void @llvm.lifetime.end.p0(i64 16, ptr %6) #5
  br label %94

93:                                               ; preds = %89
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #5
  ret void

94:                                               ; preds = %92, %35
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #5
  br label %95

95:                                               ; preds = %94
  %96 = load ptr, ptr %4, align 8
  %97 = load i32, ptr %5, align 4
  %98 = insertvalue { ptr, i32 } poison, ptr %96, 0
  %99 = insertvalue { ptr, i32 } %98, i32 %97, 1
  resume { ptr, i32 } %99
}

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt16reverse_iteratorISt17_Rb_tree_iteratorISt4pairIKxxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIxxEC2IKxxTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE18_ConstructiblePairIS4_S5_EEclsr6_PCCFPIS4_S5_EE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS_IS4_S5_E(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5eraseERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #3

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 = { 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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; 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" }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::pair" = type { i64, i64 }
%"class.std::reverse_iterator" = type { %"struct.std::_Rb_tree_iterator" }
%"struct.std::_Rb_tree_iterator" = type { ptr }

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::map", align 8
  %4 = alloca %"struct.std::pair", align 8
  %5 = alloca %"class.std::reverse_iterator", align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(8) %2)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %3) #5
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %10 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %1)
          to label %11 unwind label %22

11:                                               ; preds = %0
  store i64 1, ptr %10, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %4, i64 8
  br label %13

13:                                               ; preds = %51, %11
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE6rbeginEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %5, ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt16reverse_iteratorISt17_Rb_tree_iteratorISt4pairIKxxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5)
  call void @_ZNSt4pairIxxEC2IKxxTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE18_ConstructiblePairIS4_S5_EEclsr6_PCCFPIS4_S5_EE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS_IS4_S5_E(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef nonnull align 8 dereferenceable(16) %14)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  %15 = invoke noundef i64 @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5eraseERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %16 unwind label %24

16:                                               ; preds = %13
  %17 = load i64, ptr %4, align 8, !tbaa !9
  %18 = load i64, ptr %12, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %19 = and i64 %17, 1
  %.not = icmp eq i64 %19, 0
  br i1 %.not, label %26, label %20

20:                                               ; preds = %16
  %21 = sdiv i64 %17, 2
  br label %29

22:                                               ; preds = %0
  %23 = landingpad { ptr, i32 }
          cleanup
  br label %56

24:                                               ; preds = %13
  %25 = landingpad { ptr, i32 }
          cleanup
  br label %54

26:                                               ; preds = %16
  %27 = ashr exact i64 %17, 1
  %28 = add nsw i64 %27, -1
  br label %29

29:                                               ; preds = %26, %20
  %.sink = phi i64 [ %27, %26 ], [ %21, %20 ]
  %storemerge = phi i64 [ %28, %26 ], [ %21, %20 ]
  store i64 %.sink, ptr %7, align 8
  store i64 %storemerge, ptr %6, align 8, !tbaa !5
  %30 = load i64, ptr %2, align 8, !tbaa !5
  %.not14 = icmp slt i64 %18, %30
  br i1 %.not14, label %44, label %31

31:                                               ; preds = %29
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7)
  %33 = load i64, ptr %32, align 8, !tbaa !5
  %34 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %33)
          to label %35 unwind label %.loopexit.split-lp

35:                                               ; preds = %31
  %36 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %34, i8 noundef signext 32)
          to label %37 unwind label %.loopexit.split-lp

37:                                               ; preds = %35
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7)
  %39 = load i64, ptr %38, align 8, !tbaa !5
  %40 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %36, i64 noundef %39)
          to label %41 unwind label %.loopexit.split-lp

41:                                               ; preds = %37
  %42 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %40, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %55 unwind label %.loopexit.split-lp

.loopexit:                                        ; preds = %44, %47
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %43

.loopexit.split-lp:                               ; preds = %31, %35, %37, %41
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %43

43:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  br label %54

44:                                               ; preds = %29
  %45 = sub nsw i64 %30, %18
  store i64 %45, ptr %2, align 8, !tbaa !5
  %46 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %47 unwind label %.loopexit

47:                                               ; preds = %44
  %48 = load i64, ptr %46, align 8, !tbaa !5
  %49 = add nsw i64 %48, %18
  store i64 %49, ptr %46, align 8, !tbaa !5
  %50 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %51 unwind label %.loopexit

51:                                               ; preds = %47
  %52 = load i64, ptr %50, align 8, !tbaa !5
  %53 = add nsw i64 %52, %18
  store i64 %53, ptr %50, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #5
  br label %13

54:                                               ; preds = %43, %24
  %.pn = phi { ptr, i32 } [ %lpad.phi, %43 ], [ %25, %24 ]
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #5
  br label %56

55:                                               ; preds = %41
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #5
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret void

56:                                               ; preds = %54, %22
  %.pn.pn = phi { ptr, i32 } [ %.pn, %54 ], [ %23, %22 ]
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn.pn
}

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt16reverse_iteratorISt17_Rb_tree_iteratorISt4pairIKxxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIxxEC2IKxxTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE18_ConstructiblePairIS4_S5_EEclsr6_PCCFPIS4_S5_EE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS_IS4_S5_E(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) 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) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5eraseERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #3

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 = { 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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopSimplifyPass,MergedLoadStoreMotionPass,SROAPass,SimplifyCFGPass