; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/graphs (dfs_of_a_graph)

; 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_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsiPSt6vectorIiSaIiEEPb(i32 noundef, ptr noundef, ptr noundef) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i64, align 8
  %12 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #8
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = zext i32 %15 to i64
  %17 = call ptr @llvm.stacksave.p0()
  store ptr %17, ptr %4, align 8
  %18 = alloca %"class.std::vector", i64 %16, align 16
  store i64 %16, ptr %5, align 8
  %19 = icmp eq i64 %16, 0
  br i1 %19, label %26, label %20

20:                                               ; preds = %0
  %21 = getelementptr inbounds %"class.std::vector", ptr %18, i64 %16
  br label %22

22:                                               ; preds = %22, %20
  %23 = phi ptr [ %18, %20 ], [ %24, %22 ]
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %23) #8
  %24 = getelementptr inbounds %"class.std::vector", ptr %23, i64 1
  %25 = icmp eq ptr %24, %21
  br i1 %25, label %26, label %22

26:                                               ; preds = %22, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #8
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %27

27:                                               ; preds = %45, %26
  %28 = load i32, ptr %8, align 4, !tbaa !5
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %32, label %31

31:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  br label %52

32:                                               ; preds = %27
  %33 = 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 %34 unwind label %48

34:                                               ; preds = %32
  %35 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %33, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %36 unwind label %48

36:                                               ; preds = %34
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds %"class.std::vector", ptr %18, i64 %38
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %39, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %40 unwind label %48

40:                                               ; preds = %36
  %41 = load i32, ptr %7, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds %"class.std::vector", ptr %18, i64 %42
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %43, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %44 unwind label %48

44:                                               ; preds = %40
  br label %45

45:                                               ; preds = %44
  %46 = load i32, ptr %8, align 4, !tbaa !5
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %8, align 4, !tbaa !5
  br label %27, !llvm.loop !9

48:                                               ; preds = %40, %36, %34, %32
  %49 = landingpad { ptr, i32 }
          cleanup
  %50 = extractvalue { ptr, i32 } %49, 0
  store ptr %50, ptr %9, align 8
  %51 = extractvalue { ptr, i32 } %49, 1
  store i32 %51, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  br label %87

52:                                               ; preds = %31
  %53 = load i32, ptr %2, align 4, !tbaa !5
  %54 = zext i32 %53 to i64
  %55 = alloca i8, i64 %54, align 16
  store i64 %54, ptr %11, align 8
  call void @llvm.memset.p0.i64(ptr align 16 %55, i8 0, i64 %54, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #8
  store i32 0, ptr %12, align 4, !tbaa !5
  br label %56

56:                                               ; preds = %75, %52
  %57 = load i32, ptr %12, align 4, !tbaa !5
  %58 = load i32, ptr %2, align 4, !tbaa !5
  %59 = icmp slt i32 %57, %58
  br i1 %59, label %61, label %60

60:                                               ; preds = %56
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #8
  br label %78

61:                                               ; preds = %56
  %62 = load i32, ptr %12, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds i8, ptr %55, i64 %63
  %65 = load i8, ptr %64, align 1, !tbaa !11, !range !13, !noundef !14
  %66 = trunc i8 %65 to i1
  br i1 %66, label %74, label %67

67:                                               ; preds = %61
  %68 = load i32, ptr %12, align 4, !tbaa !5
  invoke void @_Z3dfsiPSt6vectorIiSaIiEEPb(i32 noundef %68, ptr noundef %18, ptr noundef %55)
          to label %69 unwind label %70

69:                                               ; preds = %67
  br label %74

70:                                               ; preds = %67
  %71 = landingpad { ptr, i32 }
          cleanup
  %72 = extractvalue { ptr, i32 } %71, 0
  store ptr %72, ptr %9, align 8
  %73 = extractvalue { ptr, i32 } %71, 1
  store i32 %73, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #8
  br label %87

74:                                               ; preds = %69, %61
  br label %75

75:                                               ; preds = %74
  %76 = load i32, ptr %12, align 4, !tbaa !5
  %77 = add nsw i32 %76, 1
  store i32 %77, ptr %12, align 4, !tbaa !5
  br label %56, !llvm.loop !15

78:                                               ; preds = %60
  %79 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %80 unwind label %83

80:                                               ; preds = %78
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  %81 = getelementptr inbounds %"class.std::vector", ptr %18, i64 %16
  %82 = icmp eq ptr %18, %81
  br i1 %82, label %94, label %90

83:                                               ; preds = %78
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %9, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %10, align 4
  br label %87

87:                                               ; preds = %83, %70, %48
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  %88 = getelementptr inbounds %"class.std::vector", ptr %18, i64 %16
  %89 = icmp eq ptr %18, %88
  br i1 %89, label %101, label %97

90:                                               ; preds = %90, %80
  %91 = phi ptr [ %81, %80 ], [ %92, %90 ]
  %92 = getelementptr inbounds %"class.std::vector", ptr %91, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %92) #8
  %93 = icmp eq ptr %92, %18
  br i1 %93, label %94, label %90

94:                                               ; preds = %90, %80
  %95 = load ptr, ptr %4, align 8
  call void @llvm.stackrestore.p0(ptr %95)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %96 = load i32, ptr %1, align 4
  ret i32 %96

97:                                               ; preds = %97, %87
  %98 = phi ptr [ %88, %87 ], [ %99, %97 ]
  %99 = getelementptr inbounds %"class.std::vector", ptr %98, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %99) #8
  %100 = icmp eq ptr %99, %18
  br i1 %100, label %101, label %97

101:                                              ; preds = %97, %87
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %102

102:                                              ; preds = %101
  %103 = load ptr, ptr %9, align 8
  %104 = load i32, ptr %10, align 4
  %105 = insertvalue { ptr, i32 } poison, ptr %103, 0
  %106 = insertvalue { ptr, i32 } %105, i32 %104, 1
  resume { ptr, i32 } %106
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 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)) #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #6

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 nosync nounwind willreturn }
attributes #5 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #7 = { 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 #8 = { 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 = 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::basic_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsiPSt6vectorIiSaIiEEPb(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

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

; 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 norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 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
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  %5 = 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)
  %6 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = zext i32 %7 to i64
  %9 = call ptr @llvm.stacksave.p0()
  %10 = alloca %"class.std::vector", i64 %8, align 16
  %11 = icmp eq i32 %7, 0
  br i1 %11, label %.loopexit18, label %12

12:                                               ; preds = %0
  %13 = getelementptr inbounds %"class.std::vector", ptr %10, i64 %8
  br label %14

14:                                               ; preds = %14, %12
  %15 = phi ptr [ %10, %12 ], [ %16, %14 ]
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %15) #8
  %16 = getelementptr inbounds i8, ptr %15, i64 24
  %17 = icmp eq ptr %16, %13
  br i1 %17, label %.loopexit18, label %14

.loopexit18:                                      ; preds = %14, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #8
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = icmp sgt i32 %18, 0
  br i1 %19, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %35, %.loopexit18
  %20 = load i32, ptr %1, align 4, !tbaa !5
  %21 = zext i32 %20 to i64
  %22 = alloca i8, i64 %21, align 16
  call void @llvm.memset.p0.i64(ptr nonnull align 16 %22, i8 0, i64 %21, i1 false)
  %23 = icmp sgt i32 %20, 0
  br i1 %23, label %.lr.ph22, label %._crit_edge23

.lr.ph:                                           ; preds = %.loopexit18, %35
  %.01119 = phi i32 [ %36, %35 ], [ 0, %.loopexit18 ]
  %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 %10, 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 %10, 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
  %36 = add nuw nsw i32 %.01119, 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
  br label %58

._crit_edge23:                                    ; preds = %50, %._crit_edge
  %41 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %54 unwind label %56

.lr.ph22:                                         ; preds = %._crit_edge, %50
  %42 = phi i32 [ %51, %50 ], [ %20, %._crit_edge ]
  %indvars.iv = phi i64 [ %indvars.iv.next, %50 ], [ 0, %._crit_edge ]
  %43 = getelementptr inbounds i8, ptr %22, i64 %indvars.iv
  %44 = load i8, ptr %43, align 1, !tbaa !11, !range !13, !noundef !14
  %45 = trunc nuw i8 %44 to i1
  br i1 %45, label %50, label %46

46:                                               ; preds = %.lr.ph22
  %47 = trunc nuw nsw i64 %indvars.iv to i32
  invoke void @_Z3dfsiPSt6vectorIiSaIiEEPb(i32 noundef %47, ptr noundef nonnull %10, ptr noundef nonnull %22)
          to label %._crit_edge25 unwind label %48

._crit_edge25:                                    ; preds = %46
  %.pre = load i32, ptr %1, align 4, !tbaa !5
  br label %50

48:                                               ; preds = %46
  %49 = landingpad { ptr, i32 }
          cleanup
  br label %58

50:                                               ; preds = %._crit_edge25, %.lr.ph22
  %51 = phi i32 [ %.pre, %._crit_edge25 ], [ %42, %.lr.ph22 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %52 = sext i32 %51 to i64
  %53 = icmp slt i64 %indvars.iv.next, %52
  br i1 %53, label %.lr.ph22, label %._crit_edge23, !llvm.loop !15

54:                                               ; preds = %._crit_edge23
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #8
  br i1 %11, label %.loopexit17, label %.preheader16.preheader

.preheader16.preheader:                           ; preds = %54
  %55 = getelementptr inbounds %"class.std::vector", ptr %10, i64 %8
  br label %.preheader16

56:                                               ; preds = %._crit_edge23
  %57 = landingpad { ptr, i32 }
          cleanup
  br label %58

58:                                               ; preds = %56, %48, %39
  %.pn = phi { ptr, i32 } [ %40, %39 ], [ %49, %48 ], [ %57, %56 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #8
  br i1 %11, label %.loopexit, label %.preheader.preheader

.preheader.preheader:                             ; preds = %58
  %59 = getelementptr inbounds %"class.std::vector", ptr %10, i64 %8
  br label %.preheader

.preheader16:                                     ; preds = %.preheader16.preheader, %.preheader16
  %60 = phi ptr [ %61, %.preheader16 ], [ %55, %.preheader16.preheader ]
  %61 = getelementptr inbounds i8, ptr %60, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %61) #8
  %62 = icmp eq ptr %61, %10
  br i1 %62, label %.loopexit17, label %.preheader16

.loopexit17:                                      ; preds = %.preheader16, %54
  call void @llvm.stackrestore.p0(ptr %9)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  ret i32 0

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  %63 = phi ptr [ %64, %.preheader ], [ %59, %.preheader.preheader ]
  %64 = getelementptr inbounds i8, ptr %63, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %64) #8
  %65 = icmp eq ptr %64, %10
  br i1 %65, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %58
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  resume { ptr, i32 } %.pn
}

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 #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 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 #0 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) #6

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #7 = { 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 #8 = { 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 = distinct !{!15, !10}


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