; LLVM IR from abeaumont/competitive-programming :: hackerearth/january-circuits-18 (classic-task)

; 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.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator.7" = type { ptr }
%"class.std::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Tuple_impl.5", %"struct.std::_Head_base.6" }
%"struct.std::_Tuple_impl.5" = type { %"struct.std::_Head_base" }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.6" = type { i32 }
%"class.std::tuple.8" = type { %"struct.std::_Tuple_impl.9" }
%"struct.std::_Tuple_impl.9" = type { %"struct.std::_Tuple_impl.10", %"struct.std::_Head_base.12" }
%"struct.std::_Tuple_impl.10" = type { %"struct.std::_Head_base.11" }
%"struct.std::_Head_base.11" = type { ptr }
%"struct.std::_Head_base.12" = type { ptr }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

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

; 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 @_Z4findRKSt6vectorI4nodeSaIS0_EERS_ISt5tupleIJiiEESaIS6_EEii(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsRKSt6vectorI4nodeSaIS0_EERSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(56) %1, i32 noundef %2) #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector.0", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator.7", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator.7", align 8
  %13 = alloca i32, align 4
  %14 = alloca %"class.std::tuple", align 4
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca %"class.std::tuple.8", align 8
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  %20 = alloca i32, align 4
  %21 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %22 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %23 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %24 = alloca %"struct.std::__detail::_Node_iterator", align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #5
  call void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !9
  invoke void @_Z4findRKSt6vectorI4nodeSaIS0_EERS_ISt5tupleIJiiEESaIS6_EEii(ptr noundef nonnull align 8 dereferenceable(24) %25, ptr noundef nonnull align 8 dereferenceable(24) %7, i32 noundef 1, i32 noundef %26)
          to label %27 unwind label %37

27:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  store ptr %7, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %28 = load ptr, ptr %10, align 8, !tbaa !5
  %29 = call ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %28) #5
  %30 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.7", ptr %11, i32 0, i32 0
  store ptr %29, ptr %30, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %31 = load ptr, ptr %10, align 8, !tbaa !5
  %32 = call ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %31) #5
  %33 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.7", ptr %12, i32 0, i32 0
  store ptr %32, ptr %33, align 8
  br label %34

34:                                               ; preds = %110, %27
  %35 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #5
  br i1 %35, label %41, label %36

36:                                               ; preds = %34
  store i32 2, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %112

37:                                               ; preds = %3
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %8, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %9, align 4
  br label %113

41:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #5
  %42 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %14, ptr align 4 %42, i64 8, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %17) #5
  call void @_ZSt3tieIJiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind writable sret(%"class.std::tuple.8") align 8 %17, ptr noundef nonnull align 4 dereferenceable(4) %15, ptr noundef nonnull align 4 dereferenceable(4) %16) #5
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt5tupleIJRiS0_EEaSIiiEENSt9enable_ifIXcl12__assignableIRKT_RKT0_EEERS1_E4typeERKS_IJS4_S7_EE(ptr noundef nonnull align 8 dereferenceable(16) %17, ptr noundef nonnull align 4 dereferenceable(8) %14) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %17) #5
  %44 = load i32, ptr %6, align 4, !tbaa !9
  %45 = load i32, ptr %15, align 4, !tbaa !9
  %46 = sub nsw i32 %44, %45
  %47 = load i32, ptr %16, align 4, !tbaa !9
  %48 = load i32, ptr %6, align 4, !tbaa !9
  %49 = sub nsw i32 %47, %48
  %50 = icmp eq i32 %46, %49
  br i1 %50, label %51, label %52

51:                                               ; preds = %41
  store i32 3, ptr %13, align 4
  br label %104

52:                                               ; preds = %41
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #5
  %53 = load i32, ptr %6, align 4, !tbaa !9
  %54 = load i32, ptr %15, align 4, !tbaa !9
  %55 = sub nsw i32 %53, %54
  %56 = load i32, ptr %16, align 4, !tbaa !9
  %57 = load i32, ptr %6, align 4, !tbaa !9
  %58 = sub nsw i32 %56, %57
  %59 = icmp slt i32 %55, %58
  br i1 %59, label %60, label %67

60:                                               ; preds = %52
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #5
  %61 = load i32, ptr %6, align 4, !tbaa !9
  %62 = load i32, ptr %15, align 4, !tbaa !9
  %63 = sub nsw i32 %61, %62
  store i32 %63, ptr %19, align 4, !tbaa !9
  %64 = load i32, ptr %16, align 4, !tbaa !9
  %65 = load i32, ptr %19, align 4, !tbaa !9
  %66 = sub nsw i32 %64, %65
  store i32 %66, ptr %18, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #5
  br label %74

67:                                               ; preds = %52
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #5
  %68 = load i32, ptr %16, align 4, !tbaa !9
  %69 = load i32, ptr %6, align 4, !tbaa !9
  %70 = sub nsw i32 %68, %69
  store i32 %70, ptr %20, align 4, !tbaa !9
  %71 = load i32, ptr %15, align 4, !tbaa !9
  %72 = load i32, ptr %20, align 4, !tbaa !9
  %73 = add nsw i32 %71, %72
  store i32 %73, ptr %18, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #5
  br label %74

74:                                               ; preds = %67, %60
  call void @llvm.lifetime.start.p0(i64 8, ptr %21) #5
  %75 = load ptr, ptr %5, align 8, !tbaa !5
  %76 = invoke ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(56) %75, ptr noundef nonnull align 4 dereferenceable(4) %18)
          to label %77 unwind label %99

77:                                               ; preds = %74
  %78 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %21, i32 0, i32 0
  %79 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %78, i32 0, i32 0
  store ptr %76, ptr %79, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %22) #5
  %80 = load ptr, ptr %5, align 8, !tbaa !5
  %81 = call ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %80) #5
  %82 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %22, i32 0, i32 0
  %83 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %82, i32 0, i32 0
  store ptr %81, ptr %83, align 8
  %84 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIiLb0EEES3_(ptr noundef nonnull align 8 dereferenceable(8) %21, ptr noundef nonnull align 8 dereferenceable(8) %22) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %22) #5
  br i1 %84, label %85, label %103

85:                                               ; preds = %77
  %86 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %23, ptr align 8 %21, i64 8, i1 false)
  %87 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %23, i32 0, i32 0
  %88 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %87, i32 0, i32 0
  %89 = load ptr, ptr %88, align 8
  %90 = invoke ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5eraseENSt8__detail14_Node_iteratorIiLb1ELb0EEE(ptr noundef nonnull align 8 dereferenceable(56) %86, ptr %89)
          to label %91 unwind label %99

91:                                               ; preds = %85
  %92 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %24, i32 0, i32 0
  %93 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %92, i32 0, i32 0
  store ptr %90, ptr %93, align 8
  %94 = load ptr, ptr %4, align 8, !tbaa !5
  %95 = load ptr, ptr %5, align 8, !tbaa !5
  %96 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt8__detail14_Node_iteratorIiLb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %21) #5
  %97 = load i32, ptr %96, align 4, !tbaa !9
  invoke void @_Z3dfsRKSt6vectorI4nodeSaIS0_EERSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %94, ptr noundef nonnull align 8 dereferenceable(56) %95, i32 noundef %97)
          to label %98 unwind label %99

98:                                               ; preds = %91
  br label %103

99:                                               ; preds = %91, %85, %74
  %100 = landingpad { ptr, i32 }
          cleanup
  %101 = extractvalue { ptr, i32 } %100, 0
  store ptr %101, ptr %8, align 8
  %102 = extractvalue { ptr, i32 } %100, 1
  store i32 %102, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %113

103:                                              ; preds = %98, %77
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #5
  store i32 0, ptr %13, align 4
  br label %104

104:                                              ; preds = %103, %51
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  %105 = load i32, ptr %13, align 4
  switch i32 %105, label %107 [
    i32 0, label %106
  ]

106:                                              ; preds = %104
  store i32 0, ptr %13, align 4
  br label %107

107:                                              ; preds = %106, %104
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  %108 = load i32, ptr %13, align 4
  switch i32 %108, label %119 [
    i32 0, label %109
    i32 3, label %110
  ]

109:                                              ; preds = %107
  br label %110

110:                                              ; preds = %109, %107
  %111 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #5
  br label %34

112:                                              ; preds = %36
  call void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #5
  ret void

113:                                              ; preds = %99, %37
  call void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #5
  br label %114

114:                                              ; preds = %113
  %115 = load ptr, ptr %8, align 8
  %116 = load i32, ptr %9, align 4
  %117 = insertvalue { ptr, i32 } poison, ptr %115, 0
  %118 = insertvalue { ptr, i32 } %117, i32 %116, 1
  resume { ptr, i32 } %118

119:                                              ; preds = %107
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt3tieIJiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind noalias writable sret(%"class.std::tuple.8") align 8, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt5tupleIJRiS0_EEaSIiiEENSt9enable_ifIXcl12__assignableIRKT_RKT0_EEERS1_E4typeERKS_IJS4_S7_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIiLb0EEES3_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5eraseENSt8__detail14_Node_iteratorIiLb1ELb0EEE(ptr noundef nonnull align 8 dereferenceable(56), ptr) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt8__detail14_Node_iteratorIiLb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

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


; 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.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<int, int>, std::allocator<std::tuple<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator.7" = type { ptr }
%"class.std::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Tuple_impl.5", %"struct.std::_Head_base.6" }
%"struct.std::_Tuple_impl.5" = type { %"struct.std::_Head_base" }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.6" = type { i32 }
%"class.std::tuple.8" = type { %"struct.std::_Tuple_impl.9" }
%"struct.std::_Tuple_impl.9" = type { %"struct.std::_Tuple_impl.10", %"struct.std::_Head_base.12" }
%"struct.std::_Tuple_impl.10" = type { %"struct.std::_Head_base.11" }
%"struct.std::_Head_base.11" = type { ptr }
%"struct.std::_Head_base.12" = type { ptr }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

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

; 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 @_Z4findRKSt6vectorI4nodeSaIS0_EERS_ISt5tupleIJiiEESaIS6_EEii(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsRKSt6vectorI4nodeSaIS0_EERSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(56) %1, i32 noundef %2) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::vector.0", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator.7", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.7", align 8
  %7 = alloca %"class.std::tuple", align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::tuple.8", align 8
  %11 = alloca i32, align 4
  %12 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %13 = alloca %"struct.std::__detail::_Node_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #4
  call void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  invoke void @_Z4findRKSt6vectorI4nodeSaIS0_EERS_ISt5tupleIJiiEESaIS6_EEii(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %4, i32 noundef 1, i32 noundef %2)
          to label %14 unwind label %18

14:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %15 = call ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  store ptr %15, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %16 = call ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  store ptr %16, ptr %6, align 8
  %17 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %17, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %44, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  ret void

18:                                               ; preds = %3
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %47

.lr.ph:                                           ; preds = %14, %44
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  %20 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %21 = load i64, ptr %20, align 4
  store i64 %21, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #4
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %10) #4
  call void @_ZSt3tieIJiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind nonnull writable sret(%"class.std::tuple.8") align 8 %10, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %9) #4
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt5tupleIJRiS0_EEaSIiiEENSt9enable_ifIXcl12__assignableIRKT_RKT0_EEERS1_E4typeERKS_IJS4_S7_EE(ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 4 dereferenceable(8) %7) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %10) #4
  %23 = load i32, ptr %8, align 4, !tbaa !5
  %24 = sub nsw i32 %2, %23
  %25 = load i32, ptr %9, align 4, !tbaa !5
  %26 = sub nsw i32 %25, %2
  %27 = icmp eq i32 %24, %26
  br i1 %27, label %44, label %28

28:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %11) #4
  %29 = icmp slt i32 %24, %26
  %30 = add nsw i32 %26, %23
  %31 = sub nsw i32 %25, %24
  %storemerge = select i1 %29, i32 %31, i32 %30
  store i32 %storemerge, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %12) #4
  %32 = invoke ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(56) %1, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %33 unwind label %41

33:                                               ; preds = %28
  store ptr %32, ptr %12, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %13) #4
  %34 = call ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #4
  store ptr %34, ptr %13, align 8
  %35 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIiLb0EEES3_(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull align 8 dereferenceable(8) %13) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %13) #4
  br i1 %35, label %36, label %43

36:                                               ; preds = %33
  %.sroa.01.0.copyload = load ptr, ptr %12, align 8
  %37 = invoke ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5eraseENSt8__detail14_Node_iteratorIiLb1ELb0EEE(ptr noundef nonnull align 8 dereferenceable(56) %1, ptr %.sroa.01.0.copyload)
          to label %38 unwind label %41

38:                                               ; preds = %36
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt8__detail14_Node_iteratorIiLb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %12) #4
  %40 = load i32, ptr %39, align 4, !tbaa !5
  invoke void @_Z3dfsRKSt6vectorI4nodeSaIS0_EERSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(56) %1, i32 noundef %40)
          to label %43 unwind label %41

41:                                               ; preds = %38, %36, %28
  %42 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br label %47

43:                                               ; preds = %38, %33
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  br label %44

44:                                               ; preds = %.lr.ph, %43
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %46 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %46, label %.lr.ph, label %._crit_edge

47:                                               ; preds = %41, %18
  %.pn = phi { ptr, i32 } [ %42, %41 ], [ %19, %18 ]
  call void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt5tupleIJiiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt3tieIJiiEESt5tupleIJDpRT_EES3_(ptr dead_on_unwind noalias writable sret(%"class.std::tuple.8") align 8, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt5tupleIJRiS0_EEaSIiiEENSt9enable_ifIXcl12__assignableIRKT_RKT0_EEERS1_E4typeERKS_IJS4_S7_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE4findERKi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseIiLb0EEES3_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5eraseENSt8__detail14_Node_iteratorIiLb1ELb0EEE(ptr noundef nonnull align 8 dereferenceable(56), ptr) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt8__detail14_Node_iteratorIiLb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt5tupleIJiiEESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt5tupleIJiiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress 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 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 = { 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"}


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