; LLVM IR from div-bargali/Data-Structures-and-Algorithms :: C++/Data-Structures/graph (graph implementation using adjacency list)

; 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<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 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [21 x i8], align 1

; 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 i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  %15 = 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)
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %15, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = add nsw i32 %17, 1
  %19 = zext i32 %18 to i64
  %20 = call ptr @llvm.stacksave.p0()
  store ptr %20, ptr %5, align 8
  %21 = alloca %"class.std::vector", i64 %19, align 16
  store i64 %19, ptr %6, align 8
  %22 = icmp eq i64 %19, 0
  br i1 %22, label %29, label %23

23:                                               ; preds = %0
  %24 = getelementptr inbounds %"class.std::vector", ptr %21, i64 %19
  br label %25

25:                                               ; preds = %25, %23
  %26 = phi ptr [ %21, %23 ], [ %27, %25 ]
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %26) #7
  %27 = getelementptr inbounds %"class.std::vector", ptr %26, i64 1
  %28 = icmp eq ptr %27, %24
  br i1 %28, label %29, label %25

29:                                               ; preds = %25, %0
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %30

30:                                               ; preds = %47, %29
  %31 = load i32, ptr %4, align 4, !tbaa !5
  %32 = load i32, ptr %3, align 4, !tbaa !5
  %33 = icmp slt i32 %31, %32
  br i1 %33, label %34, label %54

34:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  %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) %7)
          to label %36 unwind label %50

36:                                               ; preds = %34
  %37 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %35, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %38 unwind label %50

38:                                               ; preds = %36
  %39 = load i32, ptr %7, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds %"class.std::vector", ptr %21, i64 %40
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %41, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %42 unwind label %50

42:                                               ; preds = %38
  %43 = load i32, ptr %8, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds %"class.std::vector", ptr %21, i64 %44
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %45, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %46 unwind label %50

46:                                               ; preds = %42
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %47

47:                                               ; preds = %46
  %48 = load i32, ptr %4, align 4, !tbaa !5
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %4, align 4, !tbaa !5
  br label %30, !llvm.loop !9

50:                                               ; preds = %42, %38, %36, %34
  %51 = landingpad { ptr, i32 }
          cleanup
  %52 = extractvalue { ptr, i32 } %51, 0
  store ptr %52, ptr %9, align 8
  %53 = extractvalue { ptr, i32 } %51, 1
  store i32 %53, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %123

54:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  %55 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %56 unwind label %85

56:                                               ; preds = %54
  br label %57

57:                                               ; preds = %110, %56
  %58 = load i32, ptr %11, align 4, !tbaa !5
  %59 = add nsw i32 %58, -1
  store i32 %59, ptr %11, align 4, !tbaa !5
  %60 = icmp ne i32 %58, 0
  br i1 %60, label %61, label %112

61:                                               ; preds = %57
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  %62 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %63 unwind label %89

63:                                               ; preds = %61
  %64 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %62, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %65 unwind label %89

65:                                               ; preds = %63
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #7
  store i32 -1, ptr %14, align 4, !tbaa !5
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %66

66:                                               ; preds = %94, %65
  %67 = load i32, ptr %4, align 4, !tbaa !5
  %68 = sext i32 %67 to i64
  %69 = load i32, ptr %12, align 4, !tbaa !5
  %70 = sext i32 %69 to i64
  %71 = getelementptr inbounds %"class.std::vector", ptr %21, i64 %70
  %72 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %71) #7
  %73 = icmp ult i64 %68, %72
  br i1 %73, label %74, label %97

74:                                               ; preds = %66
  %75 = load i32, ptr %12, align 4, !tbaa !5
  %76 = sext i32 %75 to i64
  %77 = getelementptr inbounds %"class.std::vector", ptr %21, i64 %76
  %78 = load i32, ptr %4, align 4, !tbaa !5
  %79 = sext i32 %78 to i64
  %80 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %77, i64 noundef %79) #7
  %81 = load i32, ptr %80, align 4, !tbaa !5
  %82 = load i32, ptr %13, align 4, !tbaa !5
  %83 = icmp eq i32 %81, %82
  br i1 %83, label %84, label %93

84:                                               ; preds = %74
  store i32 1, ptr %14, align 4, !tbaa !5
  br label %97

85:                                               ; preds = %54
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %9, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %10, align 4
  br label %115

89:                                               ; preds = %63, %61
  %90 = landingpad { ptr, i32 }
          cleanup
  %91 = extractvalue { ptr, i32 } %90, 0
  store ptr %91, ptr %9, align 8
  %92 = extractvalue { ptr, i32 } %90, 1
  store i32 %92, ptr %10, align 4
  br label %111

93:                                               ; preds = %74
  br label %94

94:                                               ; preds = %93
  %95 = load i32, ptr %4, align 4, !tbaa !5
  %96 = add nsw i32 %95, 1
  store i32 %96, ptr %4, align 4, !tbaa !5
  br label %66, !llvm.loop !11

97:                                               ; preds = %84, %66
  %98 = load i32, ptr %14, align 4, !tbaa !5
  %99 = icmp eq i32 %98, 1
  br i1 %99, label %100, label %107

100:                                              ; preds = %97
  %101 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %102 unwind label %103

102:                                              ; preds = %100
  br label %110

103:                                              ; preds = %107, %100
  %104 = landingpad { ptr, i32 }
          cleanup
  %105 = extractvalue { ptr, i32 } %104, 0
  store ptr %105, ptr %9, align 8
  %106 = extractvalue { ptr, i32 } %104, 1
  store i32 %106, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  br label %111

107:                                              ; preds = %97
  %108 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
          to label %109 unwind label %103

109:                                              ; preds = %107
  br label %110

110:                                              ; preds = %109, %102
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %57, !llvm.loop !12

111:                                              ; preds = %103, %89
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %115

112:                                              ; preds = %57
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  %113 = getelementptr inbounds %"class.std::vector", ptr %21, i64 %19
  %114 = icmp eq ptr %21, %113
  br i1 %114, label %120, label %116

115:                                              ; preds = %111, %85
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %123

116:                                              ; preds = %116, %112
  %117 = phi ptr [ %113, %112 ], [ %118, %116 ]
  %118 = getelementptr inbounds %"class.std::vector", ptr %117, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %118) #7
  %119 = icmp eq ptr %118, %21
  br i1 %119, label %120, label %116

120:                                              ; preds = %116, %112
  %121 = load ptr, ptr %5, align 8
  call void @llvm.stackrestore.p0(ptr %121)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %122 = load i32, ptr %1, align 4
  ret i32 %122

123:                                              ; preds = %115, %50
  %124 = getelementptr inbounds %"class.std::vector", ptr %21, i64 %19
  %125 = icmp eq ptr %21, %124
  br i1 %125, label %130, label %126

126:                                              ; preds = %126, %123
  %127 = phi ptr [ %124, %123 ], [ %128, %126 ]
  %128 = getelementptr inbounds %"class.std::vector", ptr %127, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %128) #7
  %129 = icmp eq ptr %128, %21
  br i1 %129, label %130, label %126

130:                                              ; preds = %126, %123
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %131

131:                                              ; preds = %130
  %132 = load ptr, ptr %9, align 8
  %133 = load i32, ptr %10, align 4
  %134 = insertvalue { ptr, i32 } poison, ptr %132, 0
  %135 = insertvalue { ptr, i32 } %134, i32 %133, 1
  resume { ptr, i32 } %135
}

; 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: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #5 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 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) #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

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 = { nocallback nofree nosync nounwind willreturn }
attributes #4 = { 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 = { 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 #6 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { 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}


; 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<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 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [21 x i8], align 1

; 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 i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  %8 = 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)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = add nsw i32 %10, 1
  %12 = zext i32 %11 to i64
  %13 = call ptr @llvm.stacksave.p0()
  %14 = alloca %"class.std::vector", i64 %12, align 16
  %15 = icmp eq i32 %11, 0
  br i1 %15, label %.loopexit27, label %16

16:                                               ; preds = %0
  %17 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %12
  br label %18

18:                                               ; preds = %18, %16
  %19 = phi ptr [ %14, %16 ], [ %20, %18 ]
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %19) #7
  %20 = getelementptr inbounds i8, ptr %19, i64 24
  %21 = icmp eq ptr %20, %17
  br i1 %21, label %.loopexit27, label %18

.loopexit27:                                      ; preds = %18, %0
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = icmp sgt i32 %22, 0
  br i1 %23, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.loopexit27, %35
  %.01328 = phi i32 [ %36, %35 ], [ 0, %.loopexit27 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  %24 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %25 unwind label %39

25:                                               ; preds = %.lr.ph
  %26 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %24, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %27 unwind label %39

27:                                               ; preds = %25
  %28 = load i32, ptr %3, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %29
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %30, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %31 unwind label %39

31:                                               ; preds = %27
  %32 = load i32, ptr %4, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %33
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %34, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %35 unwind label %39

35:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  %36 = add nuw nsw i32 %.01328, 1
  %37 = load i32, ptr %2, align 4, !tbaa !5
  %38 = icmp slt i32 %36, %37
  br i1 %38, label %.lr.ph, label %._crit_edge, !llvm.loop !9

39:                                               ; preds = %31, %27, %25, %.lr.ph
  %40 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  br label %81

._crit_edge:                                      ; preds = %35, %.loopexit27
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  %41 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %.preheader26 unwind label %64

.preheader26:                                     ; preds = %._crit_edge
  %42 = load i32, ptr %5, align 4, !tbaa !5
  %43 = add nsw i32 %42, -1
  store i32 %43, ptr %5, align 4, !tbaa !5
  %.not31 = icmp eq i32 %42, 0
  br i1 %.not31, label %._crit_edge33, label %.lr.ph32

.lr.ph32:                                         ; preds = %.preheader26, %72
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #7
  %44 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %45 unwind label %66

45:                                               ; preds = %.lr.ph32
  %46 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %44, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %.preheader25 unwind label %66

.preheader25:                                     ; preds = %45
  %47 = load i32, ptr %6, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %48
  %50 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %49) #7
  %.not34 = icmp eq i64 %50, 0
  br i1 %.not34, label %.critedge.invoke, label %.lr.ph30

51:                                               ; preds = %.lr.ph30
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %52 = load i32, ptr %6, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %53
  %55 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %54) #7
  %56 = icmp ugt i64 %55, %indvars.iv.next
  br i1 %56, label %.lr.ph30, label %.critedge.invoke, !llvm.loop !11

.lr.ph30:                                         ; preds = %.preheader25, %51
  %indvars.iv = phi i64 [ %indvars.iv.next, %51 ], [ 0, %.preheader25 ]
  %57 = load i32, ptr %6, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %58
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %59, i64 noundef %indvars.iv) #7
  %61 = load i32, ptr %60, align 4, !tbaa !5
  %62 = load i32, ptr %7, align 4, !tbaa !5
  %63 = icmp eq i32 %61, %62
  br i1 %63, label %.critedge.invoke, label %51

64:                                               ; preds = %._crit_edge
  %65 = landingpad { ptr, i32 }
          cleanup
  br label %77

66:                                               ; preds = %45, %.lr.ph32
  %67 = landingpad { ptr, i32 }
          cleanup
  br label %75

68:                                               ; preds = %.critedge.invoke
  %69 = landingpad { ptr, i32 }
          cleanup
  br label %75

.critedge.invoke:                                 ; preds = %.lr.ph30, %51, %.preheader25
  %70 = phi ptr [ @.str.1, %.preheader25 ], [ @.str.1, %51 ], [ @.str, %.lr.ph30 ]
  %71 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull %70)
          to label %72 unwind label %68

72:                                               ; preds = %.critedge.invoke
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  %73 = load i32, ptr %5, align 4, !tbaa !5
  %74 = add nsw i32 %73, -1
  store i32 %74, ptr %5, align 4, !tbaa !5
  %.not = icmp eq i32 %73, 0
  br i1 %.not, label %._crit_edge33, label %.lr.ph32, !llvm.loop !12

75:                                               ; preds = %68, %66
  %.pn = phi { ptr, i32 } [ %69, %68 ], [ %67, %66 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  br label %77

._crit_edge33:                                    ; preds = %72, %.preheader26
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  br i1 %15, label %.loopexit24, label %.preheader23.preheader

.preheader23.preheader:                           ; preds = %._crit_edge33
  %76 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %12
  br label %.preheader23

77:                                               ; preds = %75, %64
  %.pn.pn = phi { ptr, i32 } [ %.pn, %75 ], [ %65, %64 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  br label %81

.preheader23:                                     ; preds = %.preheader23.preheader, %.preheader23
  %78 = phi ptr [ %79, %.preheader23 ], [ %76, %.preheader23.preheader ]
  %79 = getelementptr inbounds i8, ptr %78, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %79) #7
  %80 = icmp eq ptr %79, %14
  br i1 %80, label %.loopexit24, label %.preheader23

.loopexit24:                                      ; preds = %.preheader23, %._crit_edge33
  call void @llvm.stackrestore.p0(ptr %13)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

81:                                               ; preds = %77, %39
  %.pn21 = phi { ptr, i32 } [ %40, %39 ], [ %.pn.pn, %77 ]
  br i1 %15, label %.loopexit, label %.preheader.preheader

.preheader.preheader:                             ; preds = %81
  %82 = getelementptr inbounds %"class.std::vector", ptr %14, i64 %12
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  %83 = phi ptr [ %84, %.preheader ], [ %82, %.preheader.preheader ]
  %84 = getelementptr inbounds i8, ptr %83, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %84) #7
  %85 = icmp eq ptr %84, %14
  br i1 %85, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %81
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  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) #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 nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; 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 #5 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 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 #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

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 nocallback nofree nosync nounwind willreturn }
attributes #4 = { 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 = { 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 #6 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { 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: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass