; LLVM IR from xirc/cp-algorithm :: atcoder/abc087/D/main.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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.5" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::vector.9" = type { %"struct.std::_Vector_base.10" }
%"struct.std::_Vector_base.10" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.TopologicalSort = type { i32, %"class.std::vector" }
%"class.std::vector.14" = type { %"struct.std::_Vector_base.15" }
%"struct.std::_Vector_base.15" = 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 }
%"struct.std::pair" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator.19" = type { ptr }
%"struct.std::_Bit_reference" = type { ptr, i64 }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@LRD = external dso_local global %"class.std::vector", align 8
@G = external dso_local global %"class.std::vector.0", align 8
@done = external dso_local global %"class.std::vector.5", align 8
@ds = external dso_local global %"class.std::vector.9", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z3dfsi(i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z5solvev() #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca i1, align 1
  %2 = alloca %class.TopologicalSort, align 8
  %3 = alloca %"class.std::vector.14", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::pair", align 4
  %11 = alloca %"class.std::vector.9", align 8
  %12 = alloca i8, align 1
  %13 = alloca i32, align 4
  %14 = alloca i8, align 1
  %15 = alloca i32, align 4
  %16 = alloca ptr, align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator.19", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator.19", align 8
  %19 = alloca i32, align 4
  %20 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #5
  %21 = load i32, ptr @N, align 4, !tbaa !5
  call void @_ZN15TopologicalSortC2Ei(ptr noundef nonnull align 8 dereferenceable(32) %2, i32 noundef %21)
  %22 = load i32, ptr @N, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #5
  call void @llvm.memset.p0.i64(ptr align 8 %3, i8 0, i64 24, i1 false)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  invoke void @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EE6assignEmRKS3_(ptr noundef nonnull align 8 dereferenceable(24) @G, i64 noundef %23, ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %24 unwind label %30

24:                                               ; preds = %0
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %25

25:                                               ; preds = %58, %24
  %26 = load i32, ptr %6, align 4, !tbaa !5
  %27 = load i32, ptr @M, align 4, !tbaa !5
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %34, label %29

29:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %70

30:                                               ; preds = %0
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %4, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %5, align 4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  br label %147

34:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %35 = load i32, ptr %6, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @LRD, i64 noundef %36) #5
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %37, i64 noundef 0) #5
  %39 = load i32, ptr %38, align 4, !tbaa !5
  store i32 %39, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  %40 = load i32, ptr %6, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @LRD, i64 noundef %41) #5
  %43 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %42, i64 noundef 1) #5
  %44 = load i32, ptr %43, align 4, !tbaa !5
  store i32 %44, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  %45 = load i32, ptr %6, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @LRD, i64 noundef %46) #5
  %48 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %47, i64 noundef 2) #5
  %49 = load i32, ptr %48, align 4, !tbaa !5
  store i32 %49, ptr %9, align 4, !tbaa !5
  %50 = load i32, ptr %7, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @G, i64 noundef %51) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  invoke void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %10, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %53 unwind label %61

53:                                               ; preds = %34
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %52, ptr noundef nonnull align 4 dereferenceable(8) %10)
          to label %54 unwind label %61

54:                                               ; preds = %53
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  %55 = load i32, ptr %7, align 4, !tbaa !5
  %56 = load i32, ptr %8, align 4, !tbaa !5
  invoke void @_ZN15TopologicalSort8add_edgeEii(ptr noundef nonnull align 8 dereferenceable(32) %2, i32 noundef %55, i32 noundef %56)
          to label %57 unwind label %65

57:                                               ; preds = %54
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %58

58:                                               ; preds = %57
  %59 = load i32, ptr %6, align 4, !tbaa !5
  %60 = add nsw i32 %59, 1
  store i32 %60, ptr %6, align 4, !tbaa !5
  br label %25, !llvm.loop !9

61:                                               ; preds = %53, %34
  %62 = landingpad { ptr, i32 }
          cleanup
  %63 = extractvalue { ptr, i32 } %62, 0
  store ptr %63, ptr %4, align 8
  %64 = extractvalue { ptr, i32 } %62, 1
  store i32 %64, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %69

65:                                               ; preds = %54
  %66 = landingpad { ptr, i32 }
          cleanup
  %67 = extractvalue { ptr, i32 } %66, 0
  store ptr %67, ptr %4, align 8
  %68 = extractvalue { ptr, i32 } %66, 1
  store i32 %68, ptr %5, align 4
  br label %69

69:                                               ; preds = %65, %61
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %147

70:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 24, ptr %11) #5
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #5
  %71 = invoke noundef zeroext i1 @_ZN15TopologicalSort5solveERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(24) %11)
          to label %72 unwind label %77

72:                                               ; preds = %70
  %73 = zext i1 %71 to i8
  store i8 %73, ptr %12, align 1, !tbaa !11
  %74 = load i8, ptr %12, align 1, !tbaa !11, !range !13, !noundef !14
  %75 = trunc i8 %74 to i1
  br i1 %75, label %81, label %76

76:                                               ; preds = %72
  store i1 false, ptr %1, align 1
  store i32 1, ptr %13, align 4
  br label %144

77:                                               ; preds = %70
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %4, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %5, align 4
  br label %146

81:                                               ; preds = %72
  %82 = load i32, ptr @N, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #5
  store i8 0, ptr %14, align 1, !tbaa !11
  invoke void @_ZNSt6vectorIbSaIbEE6assignEmRKb(ptr noundef nonnull align 8 dereferenceable(40) @done, i64 noundef %83, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %84 unwind label %97

84:                                               ; preds = %81
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #5
  %85 = load i32, ptr @N, align 4, !tbaa !5
  %86 = sext i32 %85 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #5
  store i32 -1, ptr %15, align 4, !tbaa !5
  invoke void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24) @ds, i64 noundef %86, ptr noundef nonnull align 4 dereferenceable(4) %15)
          to label %87 unwind label %101

87:                                               ; preds = %84
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #5
  store ptr %11, ptr %16, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #5
  %88 = load ptr, ptr %16, align 8, !tbaa !15
  %89 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %88) #5
  %90 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.19", ptr %17, i32 0, i32 0
  store ptr %89, ptr %90, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #5
  %91 = load ptr, ptr %16, align 8, !tbaa !15
  %92 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %91) #5
  %93 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.19", ptr %18, i32 0, i32 0
  store ptr %92, ptr %93, align 8
  br label %94

94:                                               ; preds = %138, %87
  %95 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %17, ptr noundef nonnull align 8 dereferenceable(8) %18) #5
  br i1 %95, label %105, label %96

96:                                               ; preds = %94
  store i32 5, ptr %13, align 4
  br label %141

97:                                               ; preds = %81
  %98 = landingpad { ptr, i32 }
          cleanup
  %99 = extractvalue { ptr, i32 } %98, 0
  store ptr %99, ptr %4, align 8
  %100 = extractvalue { ptr, i32 } %98, 1
  store i32 %100, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #5
  br label %146

101:                                              ; preds = %84
  %102 = landingpad { ptr, i32 }
          cleanup
  %103 = extractvalue { ptr, i32 } %102, 0
  store ptr %103, ptr %4, align 8
  %104 = extractvalue { ptr, i32 } %102, 1
  store i32 %104, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #5
  br label %146

105:                                              ; preds = %94
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #5
  %106 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %17) #5
  %107 = load i32, ptr %106, align 4, !tbaa !5
  store i32 %107, ptr %19, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %20) #5
  %108 = load i32, ptr %19, align 4, !tbaa !5
  %109 = sext i32 %108 to i64
  %110 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @done, i64 noundef %109)
          to label %111 unwind label %118

111:                                              ; preds = %105
  %112 = getelementptr inbounds { ptr, i64 }, ptr %20, i32 0, i32 0
  %113 = extractvalue { ptr, i64 } %110, 0
  store ptr %113, ptr %112, align 8
  %114 = getelementptr inbounds { ptr, i64 }, ptr %20, i32 0, i32 1
  %115 = extractvalue { ptr, i64 } %110, 1
  store i64 %115, ptr %114, align 8
  %116 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %20) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %20) #5
  br i1 %116, label %117, label %122

117:                                              ; preds = %111
  store i32 6, ptr %13, align 4
  br label %135

118:                                              ; preds = %105
  %119 = landingpad { ptr, i32 }
          cleanup
  %120 = extractvalue { ptr, i32 } %119, 0
  store ptr %120, ptr %4, align 8
  %121 = extractvalue { ptr, i32 } %119, 1
  store i32 %121, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %20) #5
  br label %140

122:                                              ; preds = %111
  %123 = load i32, ptr %19, align 4, !tbaa !5
  %124 = sext i32 %123 to i64
  %125 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @ds, i64 noundef %124) #5
  store i32 0, ptr %125, align 4, !tbaa !5
  %126 = load i32, ptr %19, align 4, !tbaa !5
  %127 = invoke noundef zeroext i1 @_Z3dfsi(i32 noundef %126)
          to label %128 unwind label %130

128:                                              ; preds = %122
  br i1 %127, label %134, label %129

129:                                              ; preds = %128
  store i1 false, ptr %1, align 1
  store i32 1, ptr %13, align 4
  br label %135

130:                                              ; preds = %122
  %131 = landingpad { ptr, i32 }
          cleanup
  %132 = extractvalue { ptr, i32 } %131, 0
  store ptr %132, ptr %4, align 8
  %133 = extractvalue { ptr, i32 } %131, 1
  store i32 %133, ptr %5, align 4
  br label %140

134:                                              ; preds = %128
  store i32 0, ptr %13, align 4
  br label %135

135:                                              ; preds = %134, %129, %117
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #5
  %136 = load i32, ptr %13, align 4
  switch i32 %136, label %141 [
    i32 0, label %137
    i32 6, label %138
  ]

137:                                              ; preds = %135
  br label %138

138:                                              ; preds = %137, %135
  %139 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %17) #5
  br label %94

140:                                              ; preds = %130, %118
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  br label %146

141:                                              ; preds = %135, %96
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  %142 = load i32, ptr %13, align 4
  switch i32 %142, label %144 [
    i32 5, label %143
  ]

143:                                              ; preds = %141
  store i1 true, ptr %1, align 1
  store i32 1, ptr %13, align 4
  br label %144

144:                                              ; preds = %143, %141, %76
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #5
  call void @_ZN15TopologicalSortD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  %145 = load i1, ptr %1, align 1
  ret i1 %145

146:                                              ; preds = %140, %101, %97, %77
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #5
  br label %147

147:                                              ; preds = %146, %69, %30
  call void @_ZN15TopologicalSortD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  br label %148

148:                                              ; preds = %147
  %149 = load ptr, ptr %4, align 8
  %150 = load i32, ptr %5, align 4
  %151 = insertvalue { ptr, i32 } poison, ptr %149, 0
  %152 = insertvalue { ptr, i32 } %151, i32 %150, 1
  resume { ptr, i32 } %152
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN15TopologicalSortC2Ei(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EE6assignEmRKS3_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN15TopologicalSort8add_edgeEii(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN15TopologicalSort5solveERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEE6assignEmRKb(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(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(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN15TopologicalSortD2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

attributes #0 = { 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 #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 nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = !{i8 0, i8 2}
!14 = !{}
!15 = !{!16, !16, i64 0}
!16 = !{!"any pointer", !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" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<std::pair<int, int>>, std::allocator<std::vector<std::pair<int, int>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.5" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::vector.9" = type { %"struct.std::_Vector_base.10" }
%"struct.std::_Vector_base.10" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.TopologicalSort = type { i32, %"class.std::vector" }
%"class.std::vector.14" = type { %"struct.std::_Vector_base.15" }
%"struct.std::_Vector_base.15" = 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 }
%"struct.std::pair" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator.19" = type { ptr }
%"struct.std::_Bit_reference" = type { ptr, i64 }

@N = external dso_local local_unnamed_addr global i32, align 4
@M = external dso_local local_unnamed_addr global i32, align 4
@LRD = external dso_local global %"class.std::vector", align 8
@G = external dso_local global %"class.std::vector.0", align 8
@done = external dso_local global %"class.std::vector.5", align 8
@ds = external dso_local global %"class.std::vector.9", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z3dfsi(i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z5solvev() local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca %class.TopologicalSort, align 8
  %2 = alloca %"class.std::vector.14", align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"struct.std::pair", align 4
  %6 = alloca %"class.std::vector.9", align 8
  %7 = alloca i8, align 1
  %8 = alloca i32, align 4
  %9 = alloca %"class.__gnu_cxx::__normal_iterator.19", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator.19", align 8
  %11 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #5
  %12 = load i32, ptr @N, align 4, !tbaa !5
  call void @_ZN15TopologicalSortC2Ei(ptr noundef nonnull align 8 dereferenceable(32) %1, i32 noundef %12)
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %2, i8 0, i64 24, i1 false)
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  invoke void @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EE6assignEmRKS3_(ptr noundef nonnull align 8 dereferenceable(24) @G, i64 noundef %14, ptr noundef nonnull align 8 dereferenceable(24) %2)
          to label %15 unwind label %19

15:                                               ; preds = %0
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  %16 = load i32, ptr @M, align 4, !tbaa !5
  %17 = icmp sgt i32 %16, 0
  br i1 %17, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %34, %15
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %6) #5
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  %18 = invoke noundef zeroext i1 @_ZN15TopologicalSort5solveERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(24) %6)
          to label %43 unwind label %44

19:                                               ; preds = %0
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  br label %83

.lr.ph:                                           ; preds = %15, %34
  %indvars.iv = phi i64 [ %indvars.iv.next, %34 ], [ 0, %15 ]
  %21 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @LRD, i64 noundef %indvars.iv) #5
  %22 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %21, i64 noundef 0) #5
  %23 = load i32, ptr %22, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  %24 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @LRD, i64 noundef %indvars.iv) #5
  %25 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %24, i64 noundef 1) #5
  %26 = load i32, ptr %25, align 4, !tbaa !5
  store i32 %26, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #5
  %27 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @LRD, i64 noundef %indvars.iv) #5
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %27, i64 noundef 2) #5
  %29 = load i32, ptr %28, align 4, !tbaa !5
  store i32 %29, ptr %4, align 4, !tbaa !5
  %30 = sext i32 %23 to i64
  %31 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @G, i64 noundef %30) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %5, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %31, ptr noundef nonnull align 4 dereferenceable(8) %5)
          to label %32 unwind label %38

32:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  %33 = load i32, ptr %3, align 4, !tbaa !5
  invoke void @_ZN15TopologicalSort8add_edgeEii(ptr noundef nonnull align 8 dereferenceable(32) %1, i32 noundef %23, i32 noundef %33)
          to label %34 unwind label %40

34:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %35 = load i32, ptr @M, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = icmp slt i64 %indvars.iv.next, %36
  br i1 %37, label %.lr.ph, label %._crit_edge, !llvm.loop !9

38:                                               ; preds = %.lr.ph
  %39 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br label %42

40:                                               ; preds = %32
  %41 = landingpad { ptr, i32 }
          cleanup
  br label %42

42:                                               ; preds = %40, %38
  %.pn30 = phi { ptr, i32 } [ %41, %40 ], [ %39, %38 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  br label %83

43:                                               ; preds = %._crit_edge
  br i1 %18, label %46, label %81

44:                                               ; preds = %._crit_edge
  %45 = landingpad { ptr, i32 }
          cleanup
  br label %82

46:                                               ; preds = %43
  %47 = load i32, ptr @N, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #5
  store i8 0, ptr %7, align 1, !tbaa !11
  invoke void @_ZNSt6vectorIbSaIbEE6assignEmRKb(ptr noundef nonnull align 8 dereferenceable(40) @done, i64 noundef %48, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %49 unwind label %57

49:                                               ; preds = %46
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #5
  %50 = load i32, ptr @N, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #5
  store i32 -1, ptr %8, align 4, !tbaa !5
  invoke void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24) @ds, i64 noundef %51, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %52 unwind label %59

52:                                               ; preds = %49
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #5
  %53 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  store ptr %53, ptr %9, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #5
  %54 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  store ptr %54, ptr %10, align 8
  %55 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  br i1 %55, label %.lr.ph38, label %._crit_edge39

.lr.ph38:                                         ; preds = %52
  %56 = getelementptr inbounds i8, ptr %11, i64 8
  br label %61

57:                                               ; preds = %46
  %58 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #5
  br label %82

59:                                               ; preds = %49
  %60 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #5
  br label %82

61:                                               ; preds = %.lr.ph38, %select.unfold
  %62 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #5
  %63 = load i32, ptr %62, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %11) #5
  %64 = sext i32 %63 to i64
  %65 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @done, i64 noundef %64)
          to label %66 unwind label %70

66:                                               ; preds = %61
  %67 = extractvalue { ptr, i64 } %65, 0
  store ptr %67, ptr %11, align 8
  %68 = extractvalue { ptr, i64 } %65, 1
  store i64 %68, ptr %56, align 8
  %69 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %11) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %11) #5
  br i1 %69, label %select.unfold, label %72

70:                                               ; preds = %61
  %71 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %11) #5
  br label %80

72:                                               ; preds = %66
  %73 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @ds, i64 noundef %64) #5
  store i32 0, ptr %73, align 4, !tbaa !5
  %74 = invoke noundef zeroext i1 @_Z3dfsi(i32 noundef %63)
          to label %75 unwind label %76

75:                                               ; preds = %72
  br i1 %74, label %select.unfold, label %._crit_edge39

76:                                               ; preds = %72
  %77 = landingpad { ptr, i32 }
          cleanup
  br label %80

select.unfold:                                    ; preds = %75, %66
  %78 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #5
  %79 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  br i1 %79, label %61, label %._crit_edge39

80:                                               ; preds = %76, %70
  %.pn = phi { ptr, i32 } [ %77, %76 ], [ %71, %70 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #5
  br label %82

._crit_edge39:                                    ; preds = %select.unfold, %75, %52
  %.lcssa = phi i1 [ true, %52 ], [ false, %75 ], [ true, %select.unfold ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #5
  br label %81

81:                                               ; preds = %._crit_edge39, %43
  %.3 = phi i1 [ false, %43 ], [ %.lcssa, %._crit_edge39 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %6) #5
  call void @_ZN15TopologicalSortD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #5
  ret i1 %.3

82:                                               ; preds = %80, %59, %57, %44
  %.pn.pn = phi { ptr, i32 } [ %.pn, %80 ], [ %60, %59 ], [ %58, %57 ], [ %45, %44 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %6) #5
  br label %83

83:                                               ; preds = %82, %42, %19
  %.pn30.pn = phi { ptr, i32 } [ %.pn30, %42 ], [ %.pn.pn, %82 ], [ %20, %19 ]
  call void @_ZN15TopologicalSortD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn30.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN15TopologicalSortC2Ei(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_ISt4pairIiiESaIS1_EESaIS3_EE6assignEmRKS3_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN15TopologicalSort8add_edgeEii(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN15TopologicalSort5solveERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEE6assignEmRKb(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN15TopologicalSortD2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

attributes #0 = { 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 #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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}


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