; LLVM IR from sunkafei/xcpc-algorithm-templates :: 算法/图论/拓扑排序.ll (Z9toposort1v)

; 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<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.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@n = external dso_local global i32, align 4
@degree = external dso_local global [110000 x i32], align 16
@G = external dso_local global [110000 x %"class.std::vector"], align 16

; 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
define dso_local void @_Z9toposort1v(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0) #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::queue", align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %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 i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca i1, align 1
  %15 = alloca i32, align 4
  %16 = alloca ptr, align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %19 = alloca i32, align 4
  store ptr %0, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 80, ptr %3) #4
  call void @_ZNSt5queueIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 1, ptr %4, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %29, %1
  %21 = load i32, ptr %4, align 4, !tbaa !5
  %22 = load i32, ptr @n, align 4, !tbaa !5
  %23 = icmp sle i32 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %32

25:                                               ; preds = %20
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %27
  store i32 0, ptr %28, align 4, !tbaa !5
  br label %29

29:                                               ; preds = %25
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %4, align 4, !tbaa !5
  br label %20, !llvm.loop !9

32:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 1, ptr %5, align 4, !tbaa !5
  br label %33

33:                                               ; preds = %62, %32
  %34 = load i32, ptr %5, align 4, !tbaa !5
  %35 = load i32, ptr @n, align 4, !tbaa !5
  %36 = icmp sle i32 %34, %35
  br i1 %36, label %38, label %37

37:                                               ; preds = %33
  store i32 5, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %65

38:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %39 = load i32, ptr %5, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [110000 x %"class.std::vector"], ptr @G, i64 0, i64 %40
  store ptr %41, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %42 = load ptr, ptr %7, align 8, !tbaa !11
  %43 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %42) #4
  %44 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %43, ptr %44, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %45 = load ptr, ptr %7, align 8, !tbaa !11
  %46 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %45) #4
  %47 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %46, ptr %47, align 8
  br label %48

48:                                               ; preds = %59, %38
  %49 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #4
  br i1 %49, label %51, label %50

50:                                               ; preds = %48
  store i32 8, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br label %61

51:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #4
  %53 = load i32, ptr %52, align 4, !tbaa !5
  store i32 %53, ptr %10, align 4, !tbaa !5
  %54 = load i32, ptr %10, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %55
  %57 = load i32, ptr %56, align 4, !tbaa !5
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %56, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %59

59:                                               ; preds = %51
  %60 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #4
  br label %48

61:                                               ; preds = %50
  br label %62

62:                                               ; preds = %61
  %63 = load i32, ptr %5, align 4, !tbaa !5
  %64 = add nsw i32 %63, 1
  store i32 %64, ptr %5, align 4, !tbaa !5
  br label %33, !llvm.loop !13

65:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  store i32 1, ptr %11, align 4, !tbaa !5
  br label %66

66:                                               ; preds = %84, %65
  %67 = load i32, ptr %11, align 4, !tbaa !5
  %68 = load i32, ptr @n, align 4, !tbaa !5
  %69 = icmp sle i32 %67, %68
  br i1 %69, label %71, label %70

70:                                               ; preds = %66
  store i32 10, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  br label %87

71:                                               ; preds = %66
  %72 = load i32, ptr %11, align 4, !tbaa !5
  %73 = sext i32 %72 to i64
  %74 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %73
  %75 = load i32, ptr %74, align 4, !tbaa !5
  %76 = icmp eq i32 %75, 0
  br i1 %76, label %77, label %83

77:                                               ; preds = %71
  invoke void @_ZNSt5queueIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %78 unwind label %79

78:                                               ; preds = %77
  br label %83

79:                                               ; preds = %77
  %80 = landingpad { ptr, i32 }
          cleanup
  %81 = extractvalue { ptr, i32 } %80, 0
  store ptr %81, ptr %12, align 8
  %82 = extractvalue { ptr, i32 } %80, 1
  store i32 %82, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  br label %147

83:                                               ; preds = %78, %71
  br label %84

84:                                               ; preds = %83
  %85 = load i32, ptr %11, align 4, !tbaa !5
  %86 = add nsw i32 %85, 1
  store i32 %86, ptr %11, align 4, !tbaa !5
  br label %66, !llvm.loop !14

87:                                               ; preds = %70
  store i1 false, ptr %14, align 1
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br label %88

88:                                               ; preds = %140, %87
  %89 = invoke noundef zeroext i1 @_ZNKSt5queueIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %90 unwind label %110

90:                                               ; preds = %88
  %91 = xor i1 %89, true
  br i1 %91, label %92, label %142

92:                                               ; preds = %90
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #4
  %93 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5queueIiSt5dequeIiSaIiEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %94 unwind label %114

94:                                               ; preds = %92
  %95 = load i32, ptr %93, align 4, !tbaa !5
  store i32 %95, ptr %15, align 4, !tbaa !5
  invoke void @_ZNSt5queueIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %96 unwind label %114

96:                                               ; preds = %94
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %15)
          to label %97 unwind label %114

97:                                               ; preds = %96
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #4
  %98 = load i32, ptr %15, align 4, !tbaa !5
  %99 = sext i32 %98 to i64
  %100 = getelementptr inbounds [110000 x %"class.std::vector"], ptr @G, i64 0, i64 %99
  store ptr %100, ptr %16, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #4
  %101 = load ptr, ptr %16, align 8, !tbaa !11
  %102 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %101) #4
  %103 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %102, ptr %103, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #4
  %104 = load ptr, ptr %16, align 8, !tbaa !11
  %105 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %104) #4
  %106 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  store ptr %105, ptr %106, align 8
  br label %107

107:                                              ; preds = %138, %97
  %108 = 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) #4
  br i1 %108, label %118, label %109

109:                                              ; preds = %107
  store i32 15, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  br label %140

110:                                              ; preds = %88
  %111 = landingpad { ptr, i32 }
          cleanup
  %112 = extractvalue { ptr, i32 } %111, 0
  store ptr %112, ptr %12, align 8
  %113 = extractvalue { ptr, i32 } %111, 1
  store i32 %113, ptr %13, align 4
  br label %146

114:                                              ; preds = %96, %94, %92
  %115 = landingpad { ptr, i32 }
          cleanup
  %116 = extractvalue { ptr, i32 } %115, 0
  store ptr %116, ptr %12, align 8
  %117 = extractvalue { ptr, i32 } %115, 1
  store i32 %117, ptr %13, align 4
  br label %141

118:                                              ; preds = %107
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #4
  %119 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %17) #4
  %120 = load i32, ptr %119, align 4, !tbaa !5
  store i32 %120, ptr %19, align 4, !tbaa !5
  %121 = load i32, ptr %19, align 4, !tbaa !5
  %122 = sext i32 %121 to i64
  %123 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %122
  %124 = load i32, ptr %123, align 4, !tbaa !5
  %125 = add nsw i32 %124, -1
  store i32 %125, ptr %123, align 4, !tbaa !5
  %126 = load i32, ptr %19, align 4, !tbaa !5
  %127 = sext i32 %126 to i64
  %128 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %127
  %129 = load i32, ptr %128, align 4, !tbaa !5
  %130 = icmp eq i32 %129, 0
  br i1 %130, label %131, label %137

131:                                              ; preds = %118
  invoke void @_ZNSt5queueIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %19)
          to label %132 unwind label %133

132:                                              ; preds = %131
  br label %137

133:                                              ; preds = %131
  %134 = landingpad { ptr, i32 }
          cleanup
  %135 = extractvalue { ptr, i32 } %134, 0
  store ptr %135, ptr %12, align 8
  %136 = extractvalue { ptr, i32 } %134, 1
  store i32 %136, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  br label %141

137:                                              ; preds = %132, %118
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  br label %138

138:                                              ; preds = %137
  %139 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %17) #4
  br label %107

140:                                              ; preds = %109
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  br label %88, !llvm.loop !15

141:                                              ; preds = %133, %114
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  br label %146

142:                                              ; preds = %90
  store i1 true, ptr %14, align 1
  store i32 1, ptr %6, align 4
  %143 = load i1, ptr %14, align 1
  br i1 %143, label %145, label %144

144:                                              ; preds = %142
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br label %145

145:                                              ; preds = %144, %142
  call void @_ZNSt5queueIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #4
  ret void

146:                                              ; preds = %141, %110
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br label %147

147:                                              ; preds = %146, %79
  call void @_ZNSt5queueIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #4
  br label %148

148:                                              ; preds = %147
  %149 = load ptr, ptr %12, align 8
  %150 = load i32, ptr %13, align 4
  %151 = insertvalue { ptr, i32 } poison, ptr %149, 0
  %152 = insertvalue { ptr, i32 } %151, i32 %150, 1
  resume { ptr, i32 } %152
}

; 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 void @_ZNSt5queueIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #1 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 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)) #3

; 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: mustprogress uwtable
declare dso_local void @_ZNSt5queueIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5queueIiSt5dequeIiSaIiEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 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 = { 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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !10}


; 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<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.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@n = external dso_local local_unnamed_addr global i32, align 4
@degree = external dso_local local_unnamed_addr global [110000 x i32], align 16
@G = external dso_local global [110000 x %"class.std::vector"], align 16

; 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
define dso_local void @_Z9toposort1v(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::queue", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %2) #5
  call void @_ZNSt5queueIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %10 = load i32, ptr @n, align 4, !tbaa !5
  %.not23 = icmp slt i32 %10, 1
  br i1 %.not23, label %._crit_edge29.thread, label %.lr.ph28.preheader

._crit_edge29.thread:                             ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  br label %._crit_edge34

.lr.ph28.preheader:                               ; preds = %1
  %11 = zext nneg i32 %10 to i64
  %12 = shl nuw nsw i64 %11, 2
  call void @llvm.memset.p0.i64(ptr nonnull align 4 getelementptr inbounds (i8, ptr @degree, i64 4), i8 0, i64 %12, i1 false), !tbaa !5
  br label %.lr.ph28

._crit_edge29:                                    ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  store i32 1, ptr %5, align 4, !tbaa !5
  %.not1930 = icmp slt i32 %17, 1
  br i1 %.not1930, label %._crit_edge34, label %.lr.ph33

.lr.ph28:                                         ; preds = %.lr.ph28.preheader, %._crit_edge
  %indvars.iv = phi i64 [ 1, %.lr.ph28.preheader ], [ %indvars.iv.next, %._crit_edge ]
  %13 = getelementptr inbounds [110000 x %"class.std::vector"], ptr @G, i64 0, i64 %indvars.iv
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %14 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #5
  store ptr %14, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %15 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #5
  store ptr %15, ptr %4, align 8
  %16 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  br i1 %16, label %.lr.ph25, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph25, %.lr.ph28
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %17 = load i32, ptr @n, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %.not18.not = icmp slt i64 %indvars.iv, %18
  br i1 %.not18.not, label %.lr.ph28, label %._crit_edge29, !llvm.loop !9

.lr.ph25:                                         ; preds = %.lr.ph28, %.lr.ph25
  %19 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %22, align 4, !tbaa !5
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %26 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  br i1 %26, label %.lr.ph25, label %._crit_edge

._crit_edge34:                                    ; preds = %36, %._crit_edge29.thread, %._crit_edge29
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  %27 = call noundef zeroext i1 @_ZNKSt5queueIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br i1 %27, label %._crit_edge40, label %.lr.ph39

.lr.ph33:                                         ; preds = %._crit_edge29, %36
  %28 = phi i32 [ %37, %36 ], [ %17, %._crit_edge29 ]
  %storemerge31 = phi i32 [ %39, %36 ], [ 1, %._crit_edge29 ]
  %29 = sext i32 %storemerge31 to i64
  %30 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !5
  %32 = icmp eq i32 %31, 0
  br i1 %32, label %33, label %36

33:                                               ; preds = %.lr.ph33
  invoke void @_ZNSt5queueIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %._crit_edge43 unwind label %34

._crit_edge43:                                    ; preds = %33
  %.pre = load i32, ptr %5, align 4, !tbaa !5
  %.pre44 = load i32, ptr @n, align 4, !tbaa !5
  br label %36

34:                                               ; preds = %33
  %35 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  br label %66

36:                                               ; preds = %._crit_edge43, %.lr.ph33
  %37 = phi i32 [ %.pre44, %._crit_edge43 ], [ %28, %.lr.ph33 ]
  %38 = phi i32 [ %.pre, %._crit_edge43 ], [ %storemerge31, %.lr.ph33 ]
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %5, align 4, !tbaa !5
  %.not19.not = icmp slt i32 %38, %37
  br i1 %.not19.not, label %.lr.ph33, label %._crit_edge34, !llvm.loop !11

.lr.ph39:                                         ; preds = %._crit_edge34, %._crit_edge37
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #5
  %40 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5queueIiSt5dequeIiSaIiEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %41 = load i32, ptr %40, align 4, !tbaa !5
  store i32 %41, ptr %6, align 4, !tbaa !5
  call void @_ZNSt5queueIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %42 unwind label %50

42:                                               ; preds = %.lr.ph39
  %43 = load i32, ptr %6, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [110000 x %"class.std::vector"], ptr @G, i64 0, i64 %44
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %46 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %45) #5
  store ptr %46, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  %47 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %45) #5
  store ptr %47, ptr %8, align 8
  %48 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #5
  br i1 %48, label %.lr.ph36, label %._crit_edge37

._crit_edge37:                                    ; preds = %62, %42
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #5
  %49 = call noundef zeroext i1 @_ZNKSt5queueIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br i1 %49, label %._crit_edge40, label %.lr.ph39, !llvm.loop !12

50:                                               ; preds = %.lr.ph39
  %51 = landingpad { ptr, i32 }
          cleanup
  br label %65

.lr.ph36:                                         ; preds = %42, %62
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #5
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  %53 = load i32, ptr %52, align 4, !tbaa !5
  store i32 %53, ptr %9, align 4, !tbaa !5
  %54 = sext i32 %53 to i64
  %55 = getelementptr inbounds [110000 x i32], ptr @degree, i64 0, i64 %54
  %56 = load i32, ptr %55, align 4, !tbaa !5
  %57 = add nsw i32 %56, -1
  store i32 %57, ptr %55, align 4, !tbaa !5
  %58 = icmp eq i32 %57, 0
  br i1 %58, label %59, label %62

59:                                               ; preds = %.lr.ph36
  invoke void @_ZNSt5queueIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %62 unwind label %60

60:                                               ; preds = %59
  %61 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  br label %65

62:                                               ; preds = %59, %.lr.ph36
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #5
  %63 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  %64 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #5
  br i1 %64, label %.lr.ph36, label %._crit_edge37

65:                                               ; preds = %60, %50
  %.pn = phi { ptr, i32 } [ %61, %60 ], [ %51, %50 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #5
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  br label %66

._crit_edge40:                                    ; preds = %._crit_edge37, %._crit_edge34
  call void @_ZNSt5queueIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #5
  ret void

66:                                               ; preds = %65, %34
  %.pn21 = phi { ptr, i32 } [ %35, %34 ], [ %.pn, %65 ]
  call void @_ZNSt5queueIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #5
  resume { ptr, i32 } %.pn21
}

; 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 void @_ZNSt5queueIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #1 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 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 #3

; 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: mustprogress uwtable
declare dso_local void @_ZNSt5queueIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5queueIiSt5dequeIiSaIiEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

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 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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