; LLVM IR from brpapa/algorithms :: solutions/codeforces (659-D)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"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 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  %13 = 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 24, ptr %3) #6
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = add nsw i32 %14, 1
  %16 = sext i32 %15 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #6
  call void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %16, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %17 unwind label %27

17:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  store ptr %3, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %18 = load ptr, ptr %7, align 8, !tbaa !9
  %19 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %18) #6
  %20 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %19, ptr %20, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %21 = load ptr, ptr %7, align 8, !tbaa !9
  %22 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %21) #6
  %23 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %22, ptr %23, align 8
  br label %24

24:                                               ; preds = %41, %17
  %25 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #6
  br i1 %25, label %31, label %26

26:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %47

27:                                               ; preds = %0
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %5, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %6, align 4
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  br label %179

31:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  %32 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #6
  store ptr %32, ptr %10, align 8, !tbaa !9
  %33 = load ptr, ptr %10, align 8, !tbaa !9
  %34 = getelementptr inbounds %"struct.std::pair", ptr %33, i32 0, i32 0
  %35 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %34)
          to label %36 unwind label %43

36:                                               ; preds = %31
  %37 = load ptr, ptr %10, align 8, !tbaa !9
  %38 = getelementptr inbounds %"struct.std::pair", ptr %37, i32 0, i32 1
  %39 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %35, ptr noundef nonnull align 4 dereferenceable(4) %38)
          to label %40 unwind label %43

40:                                               ; preds = %36
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %41

41:                                               ; preds = %40
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #6
  br label %24

43:                                               ; preds = %36, %31
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %5, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %178

47:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #6
  store i32 2, ptr %12, align 4, !tbaa !5
  br label %48

48:                                               ; preds = %166, %47
  %49 = load i32, ptr %12, align 4, !tbaa !5
  %50 = sext i32 %49 to i64
  %51 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %52 = icmp ult i64 %50, %51
  br i1 %52, label %54, label %53

53:                                               ; preds = %48
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  br label %169

54:                                               ; preds = %48
  %55 = load i32, ptr %12, align 4, !tbaa !5
  %56 = sub nsw i32 %55, 2
  %57 = sext i32 %56 to i64
  %58 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %57) #6
  %59 = getelementptr inbounds %"struct.std::pair", ptr %58, i32 0, i32 0
  %60 = load i32, ptr %59, align 4, !tbaa !11
  %61 = load i32, ptr %12, align 4, !tbaa !5
  %62 = sub nsw i32 %61, 1
  %63 = sext i32 %62 to i64
  %64 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %63) #6
  %65 = getelementptr inbounds %"struct.std::pair", ptr %64, i32 0, i32 0
  %66 = load i32, ptr %65, align 4, !tbaa !11
  %67 = icmp slt i32 %60, %66
  br i1 %67, label %68, label %81

68:                                               ; preds = %54
  %69 = load i32, ptr %12, align 4, !tbaa !5
  %70 = sub nsw i32 %69, 1
  %71 = sext i32 %70 to i64
  %72 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %71) #6
  %73 = getelementptr inbounds %"struct.std::pair", ptr %72, i32 0, i32 1
  %74 = load i32, ptr %73, align 4, !tbaa !13
  %75 = load i32, ptr %12, align 4, !tbaa !5
  %76 = sext i32 %75 to i64
  %77 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %76) #6
  %78 = getelementptr inbounds %"struct.std::pair", ptr %77, i32 0, i32 1
  %79 = load i32, ptr %78, align 4, !tbaa !13
  %80 = icmp slt i32 %74, %79
  br i1 %80, label %162, label %81

81:                                               ; preds = %68, %54
  %82 = load i32, ptr %12, align 4, !tbaa !5
  %83 = sub nsw i32 %82, 2
  %84 = sext i32 %83 to i64
  %85 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %84) #6
  %86 = getelementptr inbounds %"struct.std::pair", ptr %85, i32 0, i32 1
  %87 = load i32, ptr %86, align 4, !tbaa !13
  %88 = load i32, ptr %12, align 4, !tbaa !5
  %89 = sub nsw i32 %88, 1
  %90 = sext i32 %89 to i64
  %91 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %90) #6
  %92 = getelementptr inbounds %"struct.std::pair", ptr %91, i32 0, i32 1
  %93 = load i32, ptr %92, align 4, !tbaa !13
  %94 = icmp slt i32 %87, %93
  br i1 %94, label %95, label %108

95:                                               ; preds = %81
  %96 = load i32, ptr %12, align 4, !tbaa !5
  %97 = sub nsw i32 %96, 1
  %98 = sext i32 %97 to i64
  %99 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %98) #6
  %100 = getelementptr inbounds %"struct.std::pair", ptr %99, i32 0, i32 0
  %101 = load i32, ptr %100, align 4, !tbaa !11
  %102 = load i32, ptr %12, align 4, !tbaa !5
  %103 = sext i32 %102 to i64
  %104 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %103) #6
  %105 = getelementptr inbounds %"struct.std::pair", ptr %104, i32 0, i32 0
  %106 = load i32, ptr %105, align 4, !tbaa !11
  %107 = icmp sgt i32 %101, %106
  br i1 %107, label %162, label %108

108:                                              ; preds = %95, %81
  %109 = load i32, ptr %12, align 4, !tbaa !5
  %110 = sub nsw i32 %109, 2
  %111 = sext i32 %110 to i64
  %112 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %111) #6
  %113 = getelementptr inbounds %"struct.std::pair", ptr %112, i32 0, i32 0
  %114 = load i32, ptr %113, align 4, !tbaa !11
  %115 = load i32, ptr %12, align 4, !tbaa !5
  %116 = sub nsw i32 %115, 1
  %117 = sext i32 %116 to i64
  %118 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %117) #6
  %119 = getelementptr inbounds %"struct.std::pair", ptr %118, i32 0, i32 0
  %120 = load i32, ptr %119, align 4, !tbaa !11
  %121 = icmp sgt i32 %114, %120
  br i1 %121, label %122, label %135

122:                                              ; preds = %108
  %123 = load i32, ptr %12, align 4, !tbaa !5
  %124 = sub nsw i32 %123, 1
  %125 = sext i32 %124 to i64
  %126 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %125) #6
  %127 = getelementptr inbounds %"struct.std::pair", ptr %126, i32 0, i32 1
  %128 = load i32, ptr %127, align 4, !tbaa !13
  %129 = load i32, ptr %12, align 4, !tbaa !5
  %130 = sext i32 %129 to i64
  %131 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %130) #6
  %132 = getelementptr inbounds %"struct.std::pair", ptr %131, i32 0, i32 1
  %133 = load i32, ptr %132, align 4, !tbaa !13
  %134 = icmp sgt i32 %128, %133
  br i1 %134, label %162, label %135

135:                                              ; preds = %122, %108
  %136 = load i32, ptr %12, align 4, !tbaa !5
  %137 = sub nsw i32 %136, 2
  %138 = sext i32 %137 to i64
  %139 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %138) #6
  %140 = getelementptr inbounds %"struct.std::pair", ptr %139, i32 0, i32 1
  %141 = load i32, ptr %140, align 4, !tbaa !13
  %142 = load i32, ptr %12, align 4, !tbaa !5
  %143 = sub nsw i32 %142, 1
  %144 = sext i32 %143 to i64
  %145 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %144) #6
  %146 = getelementptr inbounds %"struct.std::pair", ptr %145, i32 0, i32 1
  %147 = load i32, ptr %146, align 4, !tbaa !13
  %148 = icmp sgt i32 %141, %147
  br i1 %148, label %149, label %165

149:                                              ; preds = %135
  %150 = load i32, ptr %12, align 4, !tbaa !5
  %151 = sub nsw i32 %150, 1
  %152 = sext i32 %151 to i64
  %153 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %152) #6
  %154 = getelementptr inbounds %"struct.std::pair", ptr %153, i32 0, i32 0
  %155 = load i32, ptr %154, align 4, !tbaa !11
  %156 = load i32, ptr %12, align 4, !tbaa !5
  %157 = sext i32 %156 to i64
  %158 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %157) #6
  %159 = getelementptr inbounds %"struct.std::pair", ptr %158, i32 0, i32 0
  %160 = load i32, ptr %159, align 4, !tbaa !11
  %161 = icmp slt i32 %155, %160
  br i1 %161, label %162, label %165

162:                                              ; preds = %149, %122, %95, %68
  %163 = load i32, ptr %11, align 4, !tbaa !5
  %164 = add nsw i32 %163, 1
  store i32 %164, ptr %11, align 4, !tbaa !5
  br label %165

165:                                              ; preds = %162, %149, %135
  br label %166

166:                                              ; preds = %165
  %167 = load i32, ptr %12, align 4, !tbaa !5
  %168 = add nsw i32 %167, 1
  store i32 %168, ptr %12, align 4, !tbaa !5
  br label %48, !llvm.loop !14

169:                                              ; preds = %53
  %170 = load i32, ptr %11, align 4, !tbaa !5
  %171 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %170)
          to label %172 unwind label %174

172:                                              ; preds = %169
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  %173 = load i32, ptr %1, align 4
  ret i32 %173

174:                                              ; preds = %169
  %175 = landingpad { ptr, i32 }
          cleanup
  %176 = extractvalue { ptr, i32 } %175, 0
  store ptr %176, ptr %5, align 8
  %177 = extractvalue { ptr, i32 } %175, 1
  store i32 %177, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %178

178:                                              ; preds = %174, %43
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %179

179:                                              ; preds = %178, %27
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %180

180:                                              ; preds = %179
  %181 = load ptr, ptr %5, align 8
  %182 = load i32, ptr %6, align 4
  %183 = insertvalue { ptr, i32 } poison, ptr %181, 0
  %184 = insertvalue { ptr, i32 } %183, i32 %182, 1
  resume { ptr, i32 } %184
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_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_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(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_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { inlinehint mustprogress 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 #6 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@_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 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  %6 = 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)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #6
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = add nsw i32 %7, 1
  %9 = sext i32 %8 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #6
  call void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %9, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %10 unwind label %16

10:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %11 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  store ptr %11, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  %12 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  store ptr %12, ptr %5, align 8
  %13 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #6
  br i1 %13, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %23, %10
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  %14 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  %15 = icmp ugt i64 %14, 2
  br i1 %15, label %.lr.ph37, label %._crit_edge38

16:                                               ; preds = %0
  %17 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  br label %95

.lr.ph:                                           ; preds = %10, %23
  %18 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  %19 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %18)
          to label %20 unwind label %26

20:                                               ; preds = %.lr.ph
  %21 = getelementptr inbounds i8, ptr %18, i64 4
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 4 dereferenceable(4) %21)
          to label %23 unwind label %26

23:                                               ; preds = %20
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  %25 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #6
  br i1 %25, label %.lr.ph, label %._crit_edge

26:                                               ; preds = %20, %.lr.ph
  %27 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br label %94

._crit_edge38:                                    ; preds = %88, %._crit_edge
  %.026.lcssa = phi i32 [ 0, %._crit_edge ], [ %.1, %88 ]
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.026.lcssa)
          to label %91 unwind label %92

.lr.ph37:                                         ; preds = %._crit_edge, %88
  %indvars.iv = phi i64 [ %indvars.iv.next, %88 ], [ 2, %._crit_edge ]
  %.02634 = phi i32 [ %.1, %88 ], [ 0, %._crit_edge ]
  %29 = add nsw i64 %indvars.iv, -2
  %30 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %29) #6
  %31 = load i32, ptr %30, align 4, !tbaa !9
  %32 = add nsw i64 %indvars.iv, -1
  %33 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %34 = load i32, ptr %33, align 4, !tbaa !9
  %35 = icmp slt i32 %31, %34
  br i1 %35, label %36, label %44

36:                                               ; preds = %.lr.ph37
  %37 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %38 = getelementptr inbounds i8, ptr %37, i64 4
  %39 = load i32, ptr %38, align 4, !tbaa !11
  %40 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #6
  %41 = getelementptr inbounds i8, ptr %40, i64 4
  %42 = load i32, ptr %41, align 4, !tbaa !11
  %43 = icmp slt i32 %39, %42
  br i1 %43, label %86, label %44

44:                                               ; preds = %36, %.lr.ph37
  %45 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %29) #6
  %46 = getelementptr inbounds i8, ptr %45, i64 4
  %47 = load i32, ptr %46, align 4, !tbaa !11
  %48 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %49 = getelementptr inbounds i8, ptr %48, i64 4
  %50 = load i32, ptr %49, align 4, !tbaa !11
  %51 = icmp slt i32 %47, %50
  br i1 %51, label %52, label %58

52:                                               ; preds = %44
  %53 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %54 = load i32, ptr %53, align 4, !tbaa !9
  %55 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #6
  %56 = load i32, ptr %55, align 4, !tbaa !9
  %57 = icmp sgt i32 %54, %56
  br i1 %57, label %86, label %58

58:                                               ; preds = %52, %44
  %59 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %29) #6
  %60 = load i32, ptr %59, align 4, !tbaa !9
  %61 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %62 = load i32, ptr %61, align 4, !tbaa !9
  %63 = icmp sgt i32 %60, %62
  br i1 %63, label %64, label %72

64:                                               ; preds = %58
  %65 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %66 = getelementptr inbounds i8, ptr %65, i64 4
  %67 = load i32, ptr %66, align 4, !tbaa !11
  %68 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #6
  %69 = getelementptr inbounds i8, ptr %68, i64 4
  %70 = load i32, ptr %69, align 4, !tbaa !11
  %71 = icmp sgt i32 %67, %70
  br i1 %71, label %86, label %72

72:                                               ; preds = %64, %58
  %73 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %29) #6
  %74 = getelementptr inbounds i8, ptr %73, i64 4
  %75 = load i32, ptr %74, align 4, !tbaa !11
  %76 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %77 = getelementptr inbounds i8, ptr %76, i64 4
  %78 = load i32, ptr %77, align 4, !tbaa !11
  %79 = icmp sgt i32 %75, %78
  br i1 %79, label %80, label %88

80:                                               ; preds = %72
  %81 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %82 = load i32, ptr %81, align 4, !tbaa !9
  %83 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #6
  %84 = load i32, ptr %83, align 4, !tbaa !9
  %85 = icmp slt i32 %82, %84
  br i1 %85, label %86, label %88

86:                                               ; preds = %80, %64, %52, %36
  %87 = add nsw i32 %.02634, 1
  br label %88

88:                                               ; preds = %72, %80, %86
  %.1 = phi i32 [ %87, %86 ], [ %.02634, %80 ], [ %.02634, %72 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %89 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  %90 = icmp ugt i64 %89, %indvars.iv.next
  br i1 %90, label %.lr.ph37, label %._crit_edge38, !llvm.loop !12

91:                                               ; preds = %._crit_edge38
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0

92:                                               ; preds = %._crit_edge38
  %93 = landingpad { ptr, i32 }
          cleanup
  br label %94

94:                                               ; preds = %92, %26
  %.pn = phi { ptr, i32 } [ %27, %26 ], [ %93, %92 ]
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %95

95:                                               ; preds = %94, %16
  %.pn.pn = phi { ptr, i32 } [ %.pn, %94 ], [ %17, %16 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  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

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 #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt4pairIiiESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { inlinehint mustprogress 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 #6 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!11 = !{!10, !6, i64 4}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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